Question about 2001 Chevrolet Silverado 1500

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2001 z71 transfer case noise - 2001 Chevrolet Silverado 1500

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Posted on Jan 02, 2017

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SOURCE: 2001 chevrolet silverado z71

replace the front u joint. I had the same issue with my truck, and I noticed that the front u joint didn't come stock with a greese zerk, the oem replacement does so they wear out fast. by the time I found it, it still looked ok till I removed the drive shaft....It was very close to wearing through.

Posted on Dec 11, 2008

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SOURCE: Ned to change the oil in transfer case

The Z71 typically comes with the auto 4wd transfer case (cannot remember the GM number). This requires AutoTrak II, which is available at a GM dealer. Do not use any other fluid in this transfer case! The previous post was correct in the location of the two plugs, but not on the fluid (the other types of transfer cases by GM use ATF). The transfer case is located under the truck right under the cab. There is a small skid plate under it, and a large driveshaft leaves the rear end of the case heading to the rear differential (axle). If you have the manual or electronic w/o auto 4WD transfer case, you can use Dexron III, but Dexron VI is a better fluid that is also now available at your local auto parts store. Again, if you have the AUTO 4WD button in the dash, use the AutoTrak II fluid from the dealer.

Posted on May 22, 2009

  • 10 Answers

SOURCE: 1996 chevy silverado z71 electronic transfer case wont work

It's the transfer case vacuum switch. Easy fix.

Posted on Jun 17, 2009

  • 439 Answers

SOURCE: Crackling noise from transfer case

What you may be hearing is the wheel bearings instead of the transfer case. I had this problem with GM before and found it to be the wheel bearing was bad. I know it is not what you think, but it would be an easy thing to check first.

Posted on Jun 21, 2009

  • 1348 Answers

SOURCE: transfer case noise

your u joints are gone.it is common on gm trucks,as they are a sealed unit and the needle bearings rust .there are replacement u joints available that have grease nipples on them. there should be very little play,less than 1/8 inch.

Posted on Jul 14, 2009

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1998 chevy siverado Z71 4x4 noise from front differential when in 2 hi, no noise in 4 hi or low. Changed gear lube lube, went for drive no noise. Next day noise came back, any help


Are you sure that the noise isn't coming from the transfer case? The front dif shouldn't care what gear your transfer case is in, it is either receiving power or it isn't.

Jan 23, 2016 | Cars & Trucks

1 Answer

My 2000 Chevy silverado 1500 z71 wont move. used 4wd then tried to put back into 2wd it would shift into any gear. Put back in park it makes a grinding noise


Sounds like your transfer case in neutral. You have to engage the transfer case back into gear then shift selector to drive or reverse. When your transfer is in neutral the transmission will not operate. Good luck.

Jan 04, 2015 | Cars & Trucks

1 Answer

Z71 transfer case


Transfer Case
NVG 236 and 246 Auto-Trak II Fluid Gm P/N 12378508 NVG 261 and 263 Manual Transmission Fluid GM P/N 88861800

Aug 18, 2013 | Cars & Trucks

1 Answer

I have a 1999 chevy silverado Z71 1500 5.3. It makes loud grinding and poping noises when I put it in gear how do I know if its the transmission or the transfer case?


the transfer case only engages when in 4wd. check the universal joint, it connects from the drive shaft to the rear differential. it may need grease or to be replaced.

Aug 08, 2012 | 1999 Chevrolet Silverado 1500

1 Answer

Transfer case noise


your u joints are gone.it is common on gm trucks,as they are a sealed unit and the needle bearings rust .there are replacement u joints available that have grease nipples on them. there should be very little play,less than 1/8 inch.

Jul 14, 2009 | 2003 Chevrolet Silverado 3500

2 Answers

Crackling noise from transfer case


What you may be hearing is the wheel bearings instead of the transfer case. I had this problem with GM before and found it to be the wheel bearing was bad. I know it is not what you think, but it would be an easy thing to check first.

Jun 21, 2009 | 1996 Chevrolet C1500

2 Answers

2001 chevrolet silverado z71


This sure sounds like a U joint, check them all again.

Sep 08, 2008 | 2001 Chevrolet Silverado

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