Why are the 4hi and 4LO lights flashing?

So this week it started up again and I drove the truck direct to the dealer and left the engine running so they could get the diagnostics on for an error code. When the 4HI and 4LO lights were flashing the 4WD system will not work. After spending a couple of hours on it the dealer figured it was a faulty actuator in the front differential.

Is the 4 wheel drive light still flashing?

2004 tundra 4 wheel drive light flashing. It will go into 4 high and engage but won’t go into 4 low. I disconnected the battery and waited 30 seconds but that didn’t help, still flashing

Is there a problem with intermittent flashing lights?

– Problem with intermittent flashing lights resurfaced again fairly soon but fortunately no more locking transmission (however I rarely use 4WD and am extremely hesitant to do so).

When does the selected position indicator light stop flashing?

The selected position indicator light will flash until the transfer case completes the shift. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON. If any of the shift conditions are not met, the indicator position light will continue to flash. You cannot be in gear for it to work.

Is the WD my book 4TB light continuously flashing?

I just bought a new WD My Book 4TB as a backup to another I purchased about a year ago. The drive is powered up, recognized by the computer, etc., but the weird thing is the white LED light in the front has been continuously flashing since hooking it up.

Why is my WD elements 2TB not working?

Here is my shot in the dark. My WD Elements 2TB External hard drive is not working. My MacBook Pro won’t recognize the device. The tiny bulb is constantly blinking when plugged in. Showing there is power, just not reading.

Why does the 4 wheel drive light stop flashing?

The transfer case neutral position needs to be selected before you attempt to engage 4WD. The selected position indicator light will flash until the transfer case completes the shift. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON.

What does the blinking 4 wheel drive indicator mean?

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.

Why does the servce 4WD light not come on?

The 4Hi and 4Lo lights just flash but 4WD does not engage. Also the ‘SERVCE 4WD’ light does NOT come on ruling out transfer cases problems. Get under the front of the truck and check the actuator. It is a silver cylinder on top of the axle as I said before.

Can a truck go into 4 HI or 4 low?

Truck isn’t engaging into 4 Hi, but will go into 4 Low. c… Q: Truck isn’t engaging into 4 Hi, but will go into 4 Low. I have a 2003 Chevy Silverado 2500hd 6.6L Duramax. I just got the drivers side CV axil halfshaft repaired by a repair shop yesterday, and now today the truck will not engage into 4wd Hi. It will engage into 4wd Lo however.

Why is my truck not engaging into 4 Hi?

Start the engine and put the vehicle in 4 Low and observe what the shifter module motor does. If the motor rotates and is working, then the issue lies within the transfer case. If the motor only turns a little and mostly turns on 4 HI, then I recommend replacing the shifter module motor to the transfer case.

What does the 4 wheel drive light mean?

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.

Why are there no lights on my 4WD?

2006 silverado 1500. 4×4 would not engage on mine. I would receive service 4wd message on dash and 4wd switch would change light locations randomly. Changed swich and it did not fix the problem.

What does it mean when your 4WD light flashes?

The transfer case is what splits the power between the front and rear axles. If it overheats, it may no longer be able to operate according to spec, causing the 4WD light to flash. Sometimes, the flashing light signifies that the system itself has deactivated until it can cool down.

Why are the lights flashing on my Toyota 4HI?

I was testing the 4WD system just to keep the seals lubed. Done it plenty of times last winter with no problems. The next morning when I turned the ignition on I noticed these two lights were flashing. I also noticed that I couldn’t engage the 4WD system. This flashing went away after 3 starts and I could engage the 4WD system.

How to fix flashing 4×4 light on Ford Explorer?

Ford Explorer and other’s fords 4×4 – YouTube If playback doesn’t begin shortly, try restarting your device. An error occurred. Please try again later. (Playback ID: kAgqj2LDEFf1gA9H) Videos you watch may be added to the TV’s watch history and influence TV recommendations.

What does it mean when your 4WD light is flashing?

Stephanie, it’s best to have it checked out and repaired. If you experience a stiffness in the steering and / or hear the tyres scrubbing when turning on a hard surface like asphalt, then it means that the 4wd is in fact engaged and you should not drive it like that. Serious damage can be done.

How does a 4 wheel drive light work?

It accomplishes this by means of a small electric motor bolted onto the transfer case that shifts a pin in place to lock the center transfer differential. The actuator allows you to shift from 2WD to 4WD on the fly and back to 2WD without stopping and can be engaged and disengaged by means of a switch inside the cabin, usually on the dashboard.

What to do if your 4WD light is flashing?

It’s a corroded actuator. Gently tap the actuator housing with a rubber mallet and see if that gets it to work. If so, remove the housing, clean well (a light sanding of the contacts, depending on corrosion, might help), apply a light coat of dielectric grease, and reinstall.

Why is the 4WD light not flashing on my Toyota Tundra?

Got the same flashing lights, on the instrument panel and then on the buttons below the radio. However, my 4WD will not engage. And the lights flash at times and at other times thye do not flash. Got no solutions so far. Click to expand… It’s a corroded actuator.