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Chevy Silverado and GMC Sierra 4x4 Questions

384 messages,  Last post on Feb 09, 2013 at 11:20 AM

You are in the Chevrolet Silverado & GMC Sierra Forum.

What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck

Messages Page 32 of 39

#304 of 384 2000 chevrolet silverado 1500 by huntergirl

Aug 31, 2010 (4:12 pm)

recently my service light came on to service my 4 wheel drive. i had it hooked up to the code machine to find out what was wrong and the code reader came back with a 0 saying the truck was running fine and there were no problems but the service light for 4 wheel drive still comes on and i have all ready checked the automatic transfer case fluid and it is fine. does anyone have an ideal of what could be causing the message to continue to come on also i have not used the 4 wheel drive since february 2010. any help would be greatly appreciated.

#305 of 384 hightopp2000@yahoo.com by havatoker

Aug 31, 2010 (6:05 pm)

First of all, is your front wheel drive kicking in. To see that it is, unplug the actuator , then un screw it from the front drive then plug it back up to see that it does extend out when put in 4X4, if it does then there are three sensors that work the whole system ,on the top and side of the transfer case, have them tested.If it does not extend , then it could be any thing in your system that could cause it.
I dont know who checked it for you , but they have to have years of experance to perform this test.
If you are not confident in the person that performed the test , then have some one else to check it.
 Lots of luck.

#306 of 384 Re: hightopp2000@yahoo.com [havatoker] by huntergirl

Sep 01, 2010 (4:37 pm)

Replying to: havatoker (Aug 31, 2010 6:05 pm)
thanks for the info. i will get my mechanic to look at this for me. what i have tried so far i could do myself but i just needed an idea of what else i should get the mechanic to look at without being charged for something that has already been checked. thanks again huntergirl

#307 of 384 2000 silverado push button 4wd trouble by rhawney

Sep 04, 2010 (10:57 am)

vehicle does not shift into 4wd in either auto 4 or 4h or 4lo. it does shift to low when 4 low button is pushed. switch panel lights appear the same as when system worked. occaisonaly when switched to 4wd it will blow atc 30 amp fuse and then no witch panel lights and service 4wd message of course. I removed front axle actuator and it appears to work fine.
 any advise appreciated

#308 of 384 hightopp2000@yahoo.com by havatoker

Sep 04, 2010 (11:34 am)

Try new select switch( The push Buttons ), also the connecter at the front accuator will sometimes have a short in it.
 Lots of luck

#309 of 384 03 sierra 4xd problem by jason2500

Sep 04, 2010 (6:55 pm)

I have a 2003 sierra 2500. I reently shifted the truck to 4 hi ti pull a trailer out of a ditch. i didnt have enough power to pull it out so i shifted to 4lo and pulled it out fine. I noticed whe i got back on the level ground i tried to shift back into 2hi and nothing would happen i ended up having to remove the motor from the transfer case and shift it manually to get home. once i got it back to my garage i reinstalled the motor and now the lights on the selector switch will only come on for a few seconds when i start the truck snd then nothing at all. I have tried a nnother incoder motor that didnt work and i swaped my switch out to my brothers truck and they worked fine in his.does any one know what the problem could be

#310 of 384 93 1500 4x4 by jdsholtz

Oct 04, 2010 (12:25 pm)

while driving it seems like the trans downshifts and upshifts fast,like a stumble but the engine stays steady according to rpm gauge.could the speed sensor be a problem,and is it on the end of the transfer case? some one told me the tps could be the problem?

#311 of 384 93 1500 4x4 update by jdsholtz

Oct 04, 2010 (2:20 pm)

it doesnt always kickdown when floored,rpm goes up but trans doesnt kickdown. also noticed a bad vibration when doing kickdown test,sometimes works fine then dont at times.????????? stumped

#312 of 384 MIssing and Service Engine Soon Light on! by snowchevy

Oct 05, 2010 (10:23 am)

I have a 2003 Chevy Silverado 2500HD, the service soon light I have had NEW wires and plugs, and new COIL PAK, I have also had dual put on. I am still experiencing a miss. Okay so I turned around and had the injector cleaned. STILL MISSING!!!! What else could be the problem?

#313 of 384 Re: MIssing and Service Engine Soon Light on! [snowchevy] by jdsholtz

Oct 05, 2010 (1:51 pm)

Replying to: snowchevy (Oct 05, 2010 10:23 am)
have your o2 sensor checked, they need to be replace around 60,000 miles.

Messages Page 32 of 39

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