2000 GMC Sierra SLE from North America - Comments

Silverado LS 5.3, Automatic transmission, 60,000 miles

2000 5.3 4x4. there is a rattling noise coming from the transfer case on the 4 wheel drive part of the transmission. or from transmission.

When I drive 1 or 2 mph seems like clicking noise at a rhythm of 5 ft.

As I speed up the noise get louder.

What would be the cause?

This is an interesting thread that I ran across while casually searching for info about my truck. A lot of transfer case problems. I have noticed that the issues with the transfer case seem to be with the 2500 or the 2500hd. Has anyone with the smaller 1500 Sierra had the same problem?

I have 100K miles on a 2001 GMC Sierra 1500 4WD Z71. I have driven it hard, pulled heavy trailers with it in Southern California Desert area where it gets quite warm. I have mostly serviced it myself using the GM specified fluids. And when I don't have the time to do it myself, I have taken it to a shop where I personally know the owner. I wonder if that could be the difference? I have had no repair issues with it so far.

I have a 99 Sierra 4WD. 4WD Service light kept coming on and was hard to get into 4wd and then back into 2wd. I had to replace the switch panel and the encoder motor at about 150,000. The stereo lights are slowly starting to go out. is there any fixes for this? also the trailer plug only works about half the time. any known fixes for this? Other than that this is a great truck. Drive back and forth from CO to IL weekly. Usually with a harley in the bed and two on a trailer behind.

I have a 99 Sierra 1500 4WD. Recently the service 4WD light came on. I discoverd the fuse had come loose, reset it and it looks good. But after reading $$$ horror stories about transfer cases I'm worried this may be coincidental. But, check your fuses before being at the mercy of a dealer.

Well I have a 99 Sub with about 139k on it. I noticed a lilttle leak on the driveway last week. Then the drops got bigger and when I looked underneath, I see a wet cross beam and the area above the transfer case is wet.. Hmm after reading this thread, I have no doubt it's the pump rub problem... I haven't read anything os the mfg stepping up to take acre of the problem. And that the JB weld is just a temp fix... Now to find out what the damage is gonna be when I go to a tranny shop, OUCH!!! Good Luck everbody on this!!

I've got a 02' sierra 4wd. I have 90k miles on it never had a problem except lately when it is in 4wd there is a rough grinding noise in the front axle. It only does it in 4wd. Is this a transfer case problem or what could it be? I hardly ever use 4wd. Please Help!

Service 4wd light on ABS light on should I trust this truck with my familys safety commputer gliches gremlins at 5 years old alredy replaced most of the truck thanks gm lease plus repairs should have kept 1990 chevy 20 van at dump and still runs better then my new 03 gmc sierra off road is not where it gets you its where it ends you up off road broke down.

Gmc... gettin major cheap

tow haul stops working fix...open stering colom plastic around shift selector little orange wire probley broke add new peice of wire electrical tap fixed..

Service 4wd light comes on 9 out of ten times so does ABS light best guess 6 different mechanics encoder motor gliches clear codes comes back change fluids comes back everything appers fine still get service 4wd light???wireing sucks gen 11 computer sucks trucks awsome ass kicker but computer and wires r crap any help with service 4wd would be apprichated.

Just something to think about... In two different late model Astro AWD vans I had the "Service AWD" and the "ABS" warning lights problems you have been talking about. Most times these two warning lights were on at the same time. In both of these vans this issue was actually caused by a bad ABS wheel speed sensor. Solved by replacing a faulty front wheel speed sensor. No more "service AWD" & ABS lights and the awd then worked again.

HeresPaco

Finger Lakes, NY.

Just experienced the same transfer case pin hole leak in my 2005 Sierra 1500 SLT.

Have had an intermittent clunking in the drive train since purchasing the truck with 57000kms (still under warranty). I have had it in for servicing for this problem numerous times, and the solution has been to lubricate the slip yoke; however the problem has not gone away.

My service 4X4 warning light started to come on, and also started to experience the random shifting of the transfer case. Had the oil changed because it was extremely dirty and shortly after the leak developed. The technician said that some clip comes off and then an small hole develops in the side of the transfer case. This was the diagnosis without dis-assembly, so this must be a common problem. Repair cost $3500.00. This failure occurred at 85000kms.

I think GM should start looking at this problem.

Les.

Edmonton, Alberta.

Notice one day that a leak had developed under my 2001 GMC 3500 4 wheel drive dually. Crawled underneath to locate the problem and discovered the rear axle, underside of the truck-bed and cross-member were covered with tranny fluid. I was amazed at the amount of fluid and trailed the leak back to its origin the "transfer case". Not sure where the t-case was leaking from, I got on the Internet to see if anybody else was having the same problems.

After reading numerous accounts of the famous oil pump rub, I crawled back underneath and located a small pin hole right where many others had indicated where it would be. With only 78,000 miles on it and never used other than pulling a bass boat, I took the truck to my local shop and they confirm what I already knew (hole in transfer case). What I didn't know was the cost to fix the problem $1200-1600.

Next I contacted GM to see if they had a recall or TSB about the problem. Naturally I was SOL on that, so my dilemma is either bite the bullet and pay or try the self-tapping screw with some JB weld.

Keith -Fontana Kansas

I have a 2000 Silverado Z71 ext cab, with 189,000 miles on it. Everything is stock except for larger tires (305's).

I recently went to the local mud hole and now there is a clicking noise that I can only hear at slow speeds. Up to about 25 miles an hour. It starts off slower and gets faster. I'm 100 percent sure it's in the drive train.

ANY IDEA OF WHAT IT MIGHT BE?

I have a 2003 GMC Sierra Z71. I have had the oil pump rub and did the JB weld fix. So far so good until today. I have notice a ping when the truck shifts gears, so went to the shop and we replaced the U joints, because that was the most likely cause. As I was about to leave, I asked how the fluid level looked in the tranny. Dry. We filled it back, thinking that now a seal was gone. The answer ended up being another pin hole towards the driver's side dead center. Now it is time for a new case. Does anyone know where the best place to find one is?

I own a 2000 GMC Sierra SLE. The service 4x4 light is currently on and I have the "clunking" sound when switching into gear. The 4x4 has switched itself on several times especially when making a sharp turn (through drive thrus!) I figured out that I can put the truck into reverse and drive for 10 feet and it will come out of 4x4.

My very trustworthy mechanic has gotten me the new panel switch to solve the problem, but I haven't got there yet to get it in!

I bought the truck 5 months ago and was told the following was recently done:

Front rotors and pads

Emergency cable

Thrust joint 4x4

Water pump

Manifold

Dash relay light

Solenoid for 4x4

I should have know it would have given me more issues, but I bought it anyways cause it's a sweet looking ride.

Anyways, I had to replace the back pads and rotated the rotors. I had an ABS problem where the truck wanted to stop (or not stop) at the right times. This was solved by cleaning the sensor.

Just the other day I had friend call me up who happened to be driving behind me and said that he thinks the U joints are going as he heard a squeaking noise coming from my truck?? I'm wondering if this squeaking may be related to the transfer case leak everyone else has experienced...

Michelle

Barrie, Ontario Canada.

I had to laugh at the title of this review that this truck "does not make the grade". In point of fact GMC is such high quality that it is the ONLY brand of truck under federal copyright law that can use the phrase "we are professional grade"!