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Where are the 4WD lights on a GMC Jimmy?

Where are the 4WD lights on a GMC Jimmy?

2.When selecting the Auto 4WD button the Auto light starts blinking and instead of being in the 4WD “on demand” mode it goes directly into 4WD. 3.No code or check 4WD lights appear on the dash.

Why does my GMC Jimmy have a blinking dash light?

Blinking dash light means the sensor did not work/actuator did not work/ or the TCCM computer is confused – yes it can happen. After you check all operations try and disconnect the battery for 30 min and then retry and that should have cleared any error.

Is there a problem with my GMC Jimmy 4WD?

If you have 4 button Autotrac the transfer cases sometimes have clutch problems and use special blue syn fluid to smooth out. The Bang comes going back to 2WD. When going into 4WD, you hear the clicking of the relays and feel it shift and hear a low whine/rumble. 4LO seems to be working as advertised.

Why does my GMC Jimmy make Rev 2 / 4 noise?

That rev/2/4 thing is caused by an internal broken Sunshell and the neck breaks off all at once usually from drivetrain shock as hard 4wd or towing. Noise could be many things as u-joints, hubs, brakes, tires etc so need to look under it and start checking. Also look at the transfer case fluid and change every 50k as well as trans fluid/filter.

Why are there no lights on my GMC Jimmy?

The drivers door open sensor was broken out of the dash below the fuse panel and I pulled the broken assembly out and got interior lights… and the lights on my 4×4 selector came on for a minute and went back off. The other problem I was having was the plastic tab on the back wasn’t holding the wire securely to the 4×4 switch.

Why does my GMC Jimmy 4WD make noise?

Noise could be many things as u-joints, hubs, brakes, tires etc so need to look under it and start checking. Also look at the transfer case fluid and change every 50k as well as trans fluid/filter. On my 2000 Jimmy, when I press the 4WD button, I hear the clicking and I feel it shift. REALLY feel it shift! Feels like I’ve got the brakes on.

What to do about no dash lights at night?

This 2000 GMC Jimmy came in with the complaint of no dash lights at night. This is actually pretty easy to test and repair. First turn the park lights on and check to make sure the exterior park/tail lights are working. These were on this vehicle. Next check for power on the ILLUM fuse in the driver’s side interior fuse box.

How can I tell if my GMC Jimmy 4WD is coupled?

Chack the actuator (crawl under the pass side front) by looking /listening to see it the cable pulls the axle coupler. 3. Check the front axle coupler sensor (wires to it) by unscrewing and pushing the ball in) which tells the TCCM or 4wd computer that the axle is coupled for all 4wd modes.

Where is the ABS sensor on a GMC Jimmy?

The front hubs each have an ABS sensor in the 1 piece hub for the ABS and Autotrac (only 4wd mode effected) to work. The rear sensor is in the transfer case.

2.When selecting the Auto 4WD button the Auto light starts blinking and instead of being in the 4WD “on demand” mode it goes directly into 4WD. 3.No code or check 4WD lights appear on the dash.

If you have 4 button Autotrac the transfer cases sometimes have clutch problems and use special blue syn fluid to smooth out. The Bang comes going back to 2WD. When going into 4WD, you hear the clicking of the relays and feel it shift and hear a low whine/rumble. 4LO seems to be working as advertised.

The front hubs each have an ABS sensor in the 1 piece hub for the ABS and Autotrac (only 4wd mode effected) to work. The rear sensor is in the transfer case.

What to do if your GMC Jimmy has vibration?

Check/change the front and rear differential gear oil and the pinion seals can leak there too. Vibration must be traced to type – tire or drive train. If the U-joints are original and have no zerks on them they may be loose. Check the front wheel bearing and tire balance.

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Ruth Doyle