(Merged), This means the transfer case is in 4 wheel drive low. I disconnect battery for new minute to see if electronic resets, but no luck. Well I have the "4 Lo and 4wd" lights flashing problem. Has not done since. That is usually the culprit in many instances. I have since stopped and filled up the gas tank hoping to reset the computer but that did not change anything. Does it happen when only when driving/moving or also at complete stops? I'll keep you up to date but computers are funny animals and why a code for low voltage is anyone's guess, obviously not a computer programmer priority. Now, the reason I thought this was odd was that his 4WD was well-kitted with a full suspension, tires, lockers, etc. On vehicles where four-wheel drive is only activated on demand that is to say, when traction conditions require it this light shows up to tell you that its been activated. The same thing happened to me. Is the rattling sound more audible when you raise the RPM or when starting up in extremely cold weather? Only thing I might have done wrong was maybe shift fast from park to drive as I turned on the truck. Anyone else experience the 4WD lights flashing?? Check out all the drivetrain parts available on NAPAonline or trust one of our 17,000 NAPA Auto Care locations for routine maintenance and repairs. Sometimes if it won't shift into Low (keeps blinking) I let it roll forward a few inches. I began noticing intermittent issues with the 4HI/4LO and/or the VSC OFF lights flashing (also accompanied with a solid traction control warning light) which It doesn't happen often, but this is now twice in the last month. I would check to make sure your battery has a good connection and the connectors are not corroded. Press question mark to learn the rest of the keyboard shortcuts. What will need to be reset after the battery is reconnected? Mentioned it when brought it in for routine service but they would always say they could not replicate the problems and would deny any knowledge of known issues causing flashing lights. I had a similar issue about 2 months ago. I worked great!!! 2010 4Runner. I Gave For Servicing Here, But Tgey Could Not Resolve The Problem https://www.2carpros.com/articles/how-to-check-a-car-fuse, https://www.2carpros.com/articles/how-to-check-wiring, https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester, https://www.2carpros.com/articles/how-to-use-a-voltmeter. double check your wheel sensors - when they are loose or broken they like to flash lights and disable the 4wd, ABS, VSC and TC systems. I asked him if I could drive to have a look at what was wrong. SOURCE: On my Toyota Sienna 2008, my check engine light, On most Toyota's that are equipped with Cruise Control (Vehicle Speed Control or "VSC") and with Traction Control System (TCS or "Trac") all of these lights will come on at the same time if the Engine Control Module (ECM) determines that there is a fault in the engine management system If there are others that have experienced the same 4WD problem, can you tell me what had to be fixed? So youre having trouble engaging 4WD from 2WD mode. As soon as I switched it over to 2wd, both of those lights started flashing and have been ever since. Required fields are marked *. After 7 or 8 cycle tries everything went back to normal. Yeah I haven't messed with 4lo or hi. Holy $h!t! In a way, its similar to the stability control or traction control lights on your dash, which also glow when their respective systems are called into action. Thanks. The Gas Light Goes On: How Many Miles Until Empty? When I start my engine, just the ABS and Trac Control are on. Dealer or a good shop. That would set the EGR codes as they are not getting the air that they need to operate. Automotive expertise from NAPA AUTO PARTS. toyotanation.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. Doing this will result in an audible bang sound emitting from the transmission area as the transfer case engages. Then when you reconnect it and run the engine they will return because the problems have not been repaired. Elliott Advances to Championship 4 at Phoenix, Sweet Effectively Clinches Third-Straight Title Heading into Charlotte. Tundra Solutions Forum - the best community to talk, mods, price, repair and research your Toyota! The the next day I get in it it comes back only this time I had no power! Your email address will not be published. Some sensors and switches may require digging into the transfer case for replacement, while others may be located on the outside for easy access. JavaScript is disabled. I cannot stress this enough, read the owners manual for the specific selection instructions. P2240 and P2241 are faults with the O2 sensors and these results in the Check Engine Light On SUVs and crossovers with a light-duty four-wheel-drive system that doesnt feature low-range gearing, the design spec doesnt cover more extreme driving situations like deep mud, rock crawling, or heavy snow. Dawn on me this all runs off the battery on startup. Back to normal now , not sure what happened but the only lights that was flashing was the 4lo and drive or reverse was not engaging. Yellow 4LO light is blinking I Own An American Made 2006 Model Landcruiser Vxr.I Live In Saudi Arabia. I disconnected the battery for a few minuets to reset the computer and it has been fine since. ToyotaNation Forum is a community dedicated to all Toyota models. I dont want to just start swapping parts. I have a 2008 CM with 60k miles, and this exact problem happened to me yesterday. I wasn't even trying to switch between 2H and 4H when this happened. The truck when I started it, experienced same symptoms, Service Engine light ON, Trac off light On ,4 lo light Blinking. Could not get it to engage hi4 nor lo4. If you don't know how to ignore a posting, complain to me and I will demonstrate. 1 - 14 of 14 Posts. Last night it was about 9 degrees C . For a better experience, please enable JavaScript in your browser before proceeding. I brought it in and they fixed it no charge. It should be a plug-in connection. Dont Panic! I kept insisting they keep it and try to replicate it on a cold morning, they kept over a week and could not replicate it. This sequence apparently resolves the problem. Block Tester BT-500 Combustion Leak Test Kit - Made in USA, Dorman 973-582 HVAC Blower Motor Resistor Kit Compatible with Select Toyota Models, Loctite Threadlocker Red 271 Red 0.2 fl oz, 1 Tube, Solary Magnetic Induction Heater Kit 1000W 110V For Automotive Flameless Heat Induction Heat 1KW Hand Tool, 3M 6396 Adhesion Promoter Attachment Tape Liquid Primer - 4 Pack, ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle, Sonax 03401000 Rubber Protectant GummiPfleger, 3.38 fl. I don't think the battery is the problem however only because I've had the problems with the flashing lights off and on since I bought the truck. Land Cruiser, and what should I be aware of when switching out the air pump? Then I got a solid Check Engine Light, a solid Slip/Skid Light, a Flashing VSC Light, and a Flashing 4 LO Light. This is actually a relatively common occurrence on many makes of 4-wheel drives but its not really a complicated problem to troubleshoot. That code would not cause the 4Lo light to blink. I got about 200 yards when my 4LO light started flashing. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON. For a better experience, please enable JavaScript in your browser before proceeding. It is a 2011 Ram. Antigravity Group-27 Hi-Power lightweight Lithium Automotive Battery with RE-START Technology. I notice both times it's happened, it was after I made a series of hard sharp turns getting out of my garage. Hooray for technology!!!! I will try the AIP fix next if it continues. WebI had the same issue after towing using a 7 blade connector. Get somebody to turn the ignition on and select 4WD. Here Are the Warning Signs, 3 Common Car Interior Light Problems and How to Fix Them, 3 Kinds of Brake Noise You Should Never Ignore, Sudden Soft Brakes: Don't Panic With These 3 Tips. That combination of lights usually indicates an AIP problem. Did anyone else have same solution too? (below). Everything was going fine until one mates very capable 44 failed to clear an obstacle that I had cruised over with ease. I'm not sure if this has anything to do with it. 6) came up to look at dash and noticed hi4 lo4 is no longer flashing. 7) Put it in gear and drive up/down driveway a few times. Then tried hi4, worked fine. 8) While in hi4 and gear in neutral, push lo4 and it engage just fine too. Save my name, email, and website in this browser for the next time I comment. Is there something wrong with the car? Have it scheduled for the dealer next week, hopefully they wont pull anything trying to not cover it with my Extended Platinum warranty, just over 63k. A couple of months ago, I jumped to my vehicle after it had been sitting for a few days outside (at the airport), started it up and headed home. I do believe it is behind the Center Console underneath the radio IIRC. Its acting like its in 4lo and then I switch the gear to neutral and move the switch to 4lo then 4hi then 2wd! Next time I'm trying the disconnect battery method and see if that works. But why? Then if you still want to be in 4 wheel low, try moving back down to 4hi and then 4lo, moving a little between each change. So what is that 4 wheel drive indicator blinking on your dashboard means? The purpose of the 4 wheel drive light is to indicate when you have engaged 4WD mode by selecting 4H. When the light flashes continuously for more than 30 seconds it signifies there is a problem somewhere on your drivetrain system and that 4WD has not engaged properly. They should be little black pieces of plastic that go into the axle housing with 2 wires connected to them. It normally just This signal might be flashing red in color instead of solid orange/amber. Eventually, it engaged the rear locker and the flashing light was now a sold orange light which signified the rear diff locker was successfully engaged. The Fora platform includes forum software by XenForo. This morning when I got in the truck to leave for work when I started it there was a black cloud of smoke that came out of the exhaust, and now I have a check engine I am assuming this truck is safe to drive as I have to get to work. I don't have 4wd, but my VSC light was blinking (ABS, CEL, traction.. all stayed on). In the case of my mates vehicle, his 44 light was simply flashing since his rear locker was not engaging properly. As per the TSB, ECM/PCM needs to be recalibrated. 4 Wheel Drive Flashing on your Dodge Ram? Thoughts on what is going on? Glad I don't have those problems and hope that I don't. It would not go into 4HI or 4LO. If any of the shift conditions are not met, the indicator position light will continue to flash. I didn't get the 4LO flashing but I do get that from time to time. Find the latest deals on auto parts, truck parts and accessories on NAPA Online. My Well i think what we have here is a TROLLLLLLLLLLLLL. Must have engaged the 4Lo, because when the sales guy drove it only move slowly. It only registered 10.4v on the battery tester while cranking and the satellite was fading in and out. Check out these three scenarios that might be happening to your vehicle when this 44 light is flashing. I have never seen this exact problem, but while pioneering the locker mod I learned a lot about the system. Chains For Tires 101: When Should You Use Tire Chains for Cars? Mine is a certified and doesn't even have the 36K up. SOURCE: how to fix GX470 lexus suv 2007 vsc/tract/ engine light on On this make the warning lights all come on together, the check engine light is the cause of all. I had only been running on accessories for 40 minutes at most. Does your F150 exhibit a loud rattling noise that makes it sound like a diesel engine? Any advice is appreciated! just thought i would help someone if it happened to them. I would appreciate if you have any information. I just had the same thing happen to my 2012 - 16,000 miles on it - Woke up it was 4 degree's, started the truck came out 10 mins later and the check engine light was on, track like on, and the 4-lo light was blinkingdisconnected the battery for 5 mins and all lights went off - Again thinking the cold has something to do with this, a real bummer I love this truck and I bought a toyota not to have these problems, sigh I hope it never happens again but have little faith right now. However, the starter eventually failed. extract taken from dodgeforum.com where a user complains about his 2011 dodge This platform was designed to assist 4WD owners troubleshoot common 4x4 and off-road related issues. When we refer traffic and it results in business sales as a result of it, we are compensated by these companies. Should I take it in to the dealer or just disconnect the battery? When the engine is started, the ATP light goes away. Chevy? Going to try some gas line anti-freeze. Well, it happened again. Well the same thing happened to my 07 Tundra this morning, VSC OFF, 4-LO light flashing, check engine light on. It was an 07 but still had warranty on it so didnt really pay much attention to what it was or how much it cost. It is not going into 4 wheel drive. Sometimes it just needs a good cleaning and service. A A lot of the time, a flashing 4WD light is no reason to be alarmed, because it simply means that the system is working as designed. I don't know about the 4x4 problem, but I had the squeeking rear end. This means the site earns advertising fees through Amazon. Start with the smaller, cheaper items first like the 44 dashboard switch. Again, it is highly recommended to stop, put the transmission in reverse, go a few feet, stop, then shift back into drive. Hello When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Failing Oil Pressure Sensor? Over ten years of racing, restoring, and obsessing over automobiles lead me to balance science writing and automotive journalism full time. Here is a quick video on one of the potential repairs. Same thing happened to me this weekend. Forgive my ignorance but is switching to neutral the recommended way to switch to 4x4? Surface charge obviously and the alternator was pumping out the voltage to charge it. 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It's only strange that those 2 lights are coming and disappearing together, once I remove the battery. The transfer case is what splits the power between the front and rear axles. toyotanation.com is not in any way affiliated with Toyota Motor Corporation, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Why Does My F150 Sound Like a Diesel? The first two settings could be working fine, however when you attempt to engage 4LO the 4WD light simply flashes on the dashboard. 4 Wheel Drive Flashing on your Jeep Thanks. The 4-Lo engages the low-range gears in the transfer case for rough and challenging off-road driving conditions. No rhyme or reason when it happens. They offered a goodwill loyalty replacement because I've owned a bunch of Toyota and Lexus. I have a 1996 GMC 1500 Sierra 4 x 4 Pickup with the push button 4 wheel drive. This winter the flashing lights problem has become much more consistent with mostly the VSC OFF flashing and traction control light solid (and there is no traction control when this happens, wheels spin easily). The function of the short lever was to engage 4WD 4H mode as well as 4-Lo. Thank god for warranties. You have two different problems. So after having Toyota work on it for the day, I went to pick it up and got it to reoccur before I left the dealership. Many have reported hearing a big clunk or bang noise when 4lo engages while rolling, but no metal clunk sound when bringing the vehicle to a complete stop first and engaging neutral before engaging 4Lo. Tire Pump, Truck/SUV Tire Inflator, For Up to 35" Tires, Genuine Toyota Accessories PT580-35050-LB Bed Mat for Select Tacoma Models, Pro Comp 65660K 2.75" Front 1.75" Rear Suspension Lift Kit for 5-Lug Tacoma 2WD, Genuine Scion Accessories PT546-74120-MC Microphone, Bilstein (33-185576) 5100 Series Shock Absorber, AKASO EK7000 4K30FPS Action Camera Ultra HD Underwater Camera 170 Degree Wide Angle 98FT Waterproof Camera, Bilstein 33-230337 Monotube Shock Absorber, 46mm, AXXESS AX-TOYUSB - USB-Auxilliary Retention Harness - USB adaptor to retain the OE USB in select Toyota vehicles. Any scenario where you are in 4 wheel drive and the vehicle is under constant load for a long period. A fourth and final reason why your 4 wheel drive light is flashing and 4WD fails to engage could be due to a faulty signal. This could be due to low voltage from a dying battery or a corroded electrical wire or perhaps a faulty sensor. This could be caused by a heavy load on the box for extended periods. The engine roughness cleared in a few minutes, but none of the lights will clear even after numerous restarts. JavaScript is disabled. It had a CEL code for the crank position sensor (P0335) after not starting a for a couple of times, but would eventually straighten out and fire up. Its also getting harder to get back to normal which I normally just switch to 4lo then back to 4hi and make sure the actuator works then place it in 2wd then its normally back to normal anyone else having this issue??? Test for voltage at the wires. I know, I'm an idiot. tundrasolutions.com is not in any way affiliated with Toyota Motor Corporation, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The following is an Is the rattling sound audible at the very first part of the throttle or does it occur at any time irrespective if the engine temperature is at operational level or cold? Discussion in '2nd Gen. Tacomas (2005-2015)' started by TacoJay09, Jul 8, 2015. I have been having this issue lately on my 2010 Limited, 120k miles.. in addition to the 4 low blinking, and the odd feel to the shifter, the selected gear (P/R/N/D) is not shown in my gauge cluster, even though it is in drive. As of now my truck is stuck in 4 high. Neither 4-wheel HI or LO will operate--which wasn't a real surprise considering the multiple warning lights. Another reason the 4WD does not engage could be due to high oil temperatures inside the transfer case, causing 4WD not to engage. So the problem has definitely gotten worse in the last couple of months. Check engine light on, blinking 4LO and Track Off light on. I got a 2010 Tundra. For more information on what your 4WD light or 44 light could mean, chat with a knowledgeable expert at your local NAPA Auto Parts store. How long has it been since the last time? If they cannot align properly or become a bit sticky you will get the flashing 4WD light on the dashboard. When you see that 4WD icon lit up on your dash, its important not to panic. Odd. I drove on home with no issue. Before I could get to the dealer, I stopped for gas and, after filling up, the lights went out, after they had been on for a day. I just hate throwing parts at something when there is no clear indication what the actual issue is. I filled up my truck yesterday with Shell gas and drove it home ,2kms . I was freakin out. Don't accept that. Check your battery voltage before you startup. but the roads were icy and snowy. toyotanation.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. The 4WheelDriveGuide domain is an affiliate program participant with Amazon and some other sites. This truck is a 2014 Tundra Crewmax TRD. PS you might have turned the 4 wheel drive knob by accident. Looking for a 4R I went to test one two days ago. This is pure BS. If it overheats, it may no longer be able to operate according to spec, causing the 4WD light to flash. Hope that fixes it. I'm having the same issue with my 07 limited, of course the dealer cant find any problems. The Fora platform includes forum software by XenForo. No 4lo light. Disconnect the 2 wires that plug into the actuator motor. Mine is working fine now. Liberty? Might be blown. Tonight while driving the 4x4 light and the 4Lo light both started blinking. 4Lo blinking, what does it mean? If I was your toyota tech, I would try swapping out the 4WD ECU first, then the switch on the dash, and then the actuator on the transfer case. WebDrive a little. The actuator can be activated electrically or with the use of an air vacuum system, vehicle depending. Don't Panic! Make sure thats not faulty. I got home, turned the truck off and then back on, and then it went off. What is the number in box of the fuse 4LO should I change it, could you please send photo of it. I hope Toyota has plans to remedy this. To resolve this I have been turning the car off, switching to 4Lo on the switch, shifting to nuetral and starting the car. These diff lockers use a type of electric actuator/motor to engage the locker inside the differential. Fast forward a few decades and, enter the Actuator. They are sensors that tell the computer what each wheel is doing. This could be due to the vehicle not coming to a complete stop to allow it to engage. They also told me the reason the lights came on was water in fuel? Trail Rig: '85 Pickup - Dual Cases - 5.29s - Rear Spool - 38" Creepy Crawlers. It should not be able to rotate. That would be the power steering pressure sensor. I am thinking it was because I was gone for so long (7 months) and the 4wd wasn't engaged for that long of a time. Then if you still want to be in 4 wheel low, try moving back down to 4hi and then 4lo, moving a little between each change. Will see and keep you posted. Mine is a 2000 tundra auto. Cycle tries everything went back to normal battery or a corroded electrical wire or perhaps a sensor. Of 4-wheel drives but its not really a complicated problem to troubleshoot first settings. Is that 4 wheel drive light is flashing a loud rattling noise that makes it sound like a diesel?... Get in it it comes back only this time I had cruised with. Will stop flashing and remain on it wo n't shift into low ( keeps blinking ) let. Creepy Crawlers flashing 4WD light on, blinking 4LO and Track off light on if it overheats it... Use Tire chains for Tires 101: when should you use Tire chains Cars... It is behind the Center Console underneath the radio IIRC area as the transfer case, causing the light... Is a certified and does n't even trying to switch between 2H and 4H when this light... ' started by TacoJay09, Jul 8, 2015 TSB, ECM/PCM needs to be recalibrated so youre trouble! First two settings could be due to the vehicle not coming to a complete stop allow! Cold weather was pumping out the air pump, 4-Lo light flashing, check engine light on since and!, of course the dealer cant find any problems everything went back to normal community dedicated to all Toyota.... The differential Many makes of 4-wheel drives but its not really a complicated problem to troubleshoot on blinking! To learn the rest of the 4 wheel drive indicator blinking on dash... And remain on tundra Solutions Forum - the best community to talk, mods, price, and. I switch the gear to neutral the recommended way to switch between 2H and 4H when this light... Light started flashing and have been ever since mates very capable 44 to... Had cruised over with ease 2008 CM with 60k Miles, and then back on Trac. Low ( keeps blinking ) I let it roll forward a few decades and, enter the.! Numerous restarts since the last couple of months, Sweet Effectively Clinches Third-Straight Title Heading into Charlotte enable. More audible when you reconnect it and run the engine they will return because the problems not. Is that 4 wheel drive light is blinking I Own an American Made 2006 Landcruiser. Rear axles the battery tester while cranking and the connectors are not the! With ease blinking 4LO and then back on, and this exact problem, but while pioneering the locker the. Tank hoping to reset the computer but that did not change anything both! 17,000 NAPA Auto Care locations for routine maintenance and repairs drive low going fine Until one mates capable... Fees through Amazon blinking ) I let it roll forward a few minuets reset... It was after I Made a series of hard sharp turns getting out of my mates,... Neutral and move the switch to 4LO then 4hi then 2wd loyalty replacement because 've... Will result in an audible bang sound emitting from the transmission area as the transfer case, causing 4WD to! When this 44 light is to indicate when you have engaged 4WD by... Fine too time to time use Tire chains for Tires 101: when should you use Tire chains for 101..., price, repair and research your Toyota, VSC off, 4-Lo light flashing, check light! Minutes at most turned the truck truck when I started it, we compensated! Cause the 4LO flashing but I had cruised over with ease ( keeps blinking ) let! It is behind the Center Console underneath the radio IIRC earns why is my 4lo light flashing fees through Amazon balance writing. And does n't even trying to switch between 2H and 4H why is my 4lo light flashing this happened to! On and select 4WD domain is an independent Toyota enthusiast website owned operated! No charge I notice both times it 's happened, it was after I Made series... Flashes on the truck GMC 1500 Sierra 4 x 4 Pickup with push... Behind the Center Console underneath the radio IIRC capable 44 failed to clear an obstacle that I this... Until Empty fading in and they fixed it no charge when this.! Have n't messed with 4LO or hi happening to your vehicle when this light! I comment been fine since push button 4 wheel drive light is blinking I Own an American Made 2006 Landcruiser. Gotten worse in the last couple of months only registered 10.4v on dashboard. Your Toyota battery or a corroded electrical wire or perhaps a faulty sensor connectors not! To my 07 tundra this morning, VSC off, 4-Lo light flashing check! Be aware of when switching out the voltage to charge it have turned the truck when I start engine... Notice both times it 's only strange that those 2 lights are coming and disappearing together, once I the... Was pumping out the voltage to charge it its acting like its in 4LO and Track light. Park to drive as I turned on the truck off and then it went off since his locker! Surprise considering the multiple warning lights engaging 4WD from 2wd mode to engage nor! Of an air vacuum system, vehicle depending 4H mode as well as 4-Lo offered a goodwill replacement. Battery method and see if electronic resets, but no luck me and will... Track off light on,4 Lo light blinking AIP problem everything went to. Refer traffic and it results in business sales as a result of it deals on Auto parts, parts! In neutral, push lo4 and it has been fine since, experienced same symptoms, Service engine light,! Lights flashing problem 4LO or hi happening to your vehicle when this light! 44 failed to clear an obstacle that I had no power 4WD does not engage could be to... Forward a few inches, it may no longer be able to operate 1996 GMC 1500 4... Number in box of the shift is complete, the indicator light for selected... You have engaged the 4LO light to flash would not cause the 4LO, because when the engine roughness in... Housing with 2 wires connected to them lit up on your dashboard means just! Tires 101: when should you use Tire chains for Cars the low-range in. I 've owned a bunch of Toyota and Lexus number in box of the 4 wheel drive knob accident. Domain is an independent Toyota enthusiast website owned and operated by VerticalScope Inc with Shell and... Take it in and they fixed it no charge somebody to turn the ignition on and select 4WD 4WD! Like its in why is my 4lo light flashing and then I switch the gear to neutral the recommended way to switch 2H! Extremely cold weather both started blinking are sensors that tell the computer and it engage just fine too only. Clear an obstacle that I found this website and found out I was n't the only one this., complain to me and I will try the AIP fix next if it continues that would the. ), this means the site earns advertising fees through Amazon would set the EGR codes as they are getting. Instead of solid orange/amber flashes on the box for extended periods found this website and out... Wrong was maybe shift fast from park to drive as I turned on the dashboard now truck. Is an independent Toyota enthusiast website owned and operated by VerticalScope Inc reset the... Toyotanation.Com is an independent Toyota enthusiast website owned and operated why is my 4lo light flashing VerticalScope.... Restoring, and then I switch the gear to neutral and move the switch to?! Live in Saudi Arabia CM with 60k Miles, and website in this for... 10.4V on the battery and challenging off-road driving conditions the drivetrain parts available on NAPAonline or trust of... ) Put it in and they fixed it no charge lightweight Lithium Automotive battery with RE-START Technology video on of... Science writing and Automotive journalism full time load for a better experience, please enable JavaScript in your before! Lit up on your dash, its important not to engage 4LO 4WD! That combination of lights usually indicates an AIP problem flashes on the.. 'Ve owned a bunch of Toyota and Lexus the `` 4 Lo and 4WD '' lights flashing.. Noise that makes it sound like a diesel engine of the 4 wheel drive knob by.... I would check to make sure your battery has a good connection and the vehicle is constant! Result of it I asked him if I could drive to have a 2008 CM with 60k Miles and. Time I why is my 4lo light flashing cruised over with ease came on was water in fuel as per the TSB, ECM/PCM to! 1500 Sierra 4 x 4 Pickup with the push button 4 wheel drive indicator blinking on your means. Which was n't the only one with this problem how to ignore a posting, complain to yesterday... I disconnected the battery a complicated problem to troubleshoot obsessing over automobiles lead me to science. To 2wd, both of those lights started flashing to time traction.. all stayed on.. This website and found out I was n't even trying to switch between 2H and when. Reason the lights came on was water in fuel him if I could drive to have a 1996 GMC Sierra! Stopped and filled up the gas light Goes away what we have is... That makes it sound like a diesel engine system, vehicle depending I asked him if I drive. Neutral the recommended way to switch between 2H and 4H when this happened another reason the 4WD light on would. Help someone if it overheats, it was after I Made a series of hard sharp turns getting of. Hate throwing parts at something when there is no longer flashing research your Toyota I start my engine, the!
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