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What causes a Silverado to get stuck in 4WD?

What causes a Silverado to get stuck in 4WD?

– no real action to cause problem, just driving paved side street 4WD came on, switch lights went out and then noticed in 4WD by feel of the drive. Checked fuses in the dash panel and under the hood, all were good. Checked for loose wiring, appeared/felt fine. Swapped out the switch for a known working, no change.

How to tell if my Silverado has 4WD service?

– “Service 4WD” on shortly after every startup, stays on. – NO lights on dash switch indicating 2HI, 4Lo, etc… (except all flash momentarily on startup, typ.) – Pushing switch buttons does not appear to affect anything (no sounds of trying to engage/dis-engage)

What should I do if my 4 wheel drive line is stuck?

Check to see if you have manual hubs and that they are in “free” mode. Put your vehicle into four-wheel high mode. Drive forward for about a quarter of a mile. Stop the vehicle and shift from four-wheel to two-wheel drive. Place the vehicle in reverse and drive backwards for 15 to 20 feet.

What causes a truck to go into 4WD?

So the only things that tell the truck to go into 4WD is by hitting the button/switch (which I am not) which sends a message to the TCCM to send power to the Actuator. My theory is that the TCCM is failing and is sending that message to the Actuator without being asked? – “Service 4WD” on shortly after every startup, stays on.

When did my 2003 suburban 4WD system fail?

When my 2003 Suburban’s 4WD system failed, I was 4 hours from home with my travel trailer! The front axle was halfway engaged, so it produced a gut-wrenching grinding noise during turns for the entire drive home. However, I fixed it myself-and I bet you can, too!

What to do if your 4WD truck won’t start?

If nothing happens when you push a button (no changes to the lights, and no noises from under the truck), the buttons may have failed. Check every function for response: 2HI, Auto4WD, 4HI, 4LO, Neutral. Pull the dashboard apart (it is just held with clips) and pull out the buttons.

Is there a push button 4WD on a GM Truck?

GM push-button 4wd is goofy. sometimes they need reset. but, if that doesn’t work, i’d throw a switch at it if i were you. i know exactly what it is check your solenoid on your front axle for a loose or shorted connection!! been there done that!

What kind of switch is on Silverado 1500 Crew Cab?

I am hoping someone here can help me out. I have an 04 silverado 1500 crew cab 4wd. The truck has auto 4wd, 2wd, 4wd hi, 4wd low switch. I always keep the truck in 2wd unless needed other wise but I have noticed on more then one occasion now that my switch will automatically engage into auto 4wd from 2wd.

– no real action to cause problem, just driving paved side street 4WD came on, switch lights went out and then noticed in 4WD by feel of the drive. Checked fuses in the dash panel and under the hood, all were good. Checked for loose wiring, appeared/felt fine. Swapped out the switch for a known working, no change.

What should I do if my Silverado 4 wheel drive is not working?

If no power, check the 4WD fuse for being blown or an open in the Brown wire. 3. Check for a chassis ground on the Black wire. 4. If OK, plug the actuator back in and probe a meter on the Light Blue wire. With the vehicle in Two Wheel Drive (2WD), there should be 12 volts there. When put in 4WD, then the voltage should go to 0.

So the only things that tell the truck to go into 4WD is by hitting the button/switch (which I am not) which sends a message to the TCCM to send power to the Actuator. My theory is that the TCCM is failing and is sending that message to the Actuator without being asked? – “Service 4WD” on shortly after every startup, stays on.

How to switch from 4WD to 4HI in Chevy Silverado?

1. Defaults to 4HI after I switch the ignition on 5 sec off 5 sec then on 10 sec.,will also switch to Auto 4WD. 2. Depressing dash buttons runs 4WD Frt Axle Actuator with whining then vibrating grinding noise at end of cycle.

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Ruth Doyle