Last post on Oct 12, 2006 at 6:32 AM
You are in the Chevrolet Silverado & GMC Sierra
What is this discussion about?
GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck
Jan 11, 2001 (7:58 pm)
Answer 1. If you read ZRT7 question #35 you would know my answer was directed to him for a 2K Sierra, 1500, 4W/D Z71.
Answer 2. My experience is with a 2K Sierra not a 2001. The factory is aware of the problems I mentioned to a point of issuing a Tech. Bulletin on each of them. I don't know about the 2001.
Answer 3. Yes I am lazy.
For all of you regulars, I have been a steady reader of this forum since March 1999 and I appreciate all of the good information you have passed on to many of us who have stayed on the sidelines. For example, my first direction was to buy another 2 W/D to replace my 21 year old 1978 Sierra. I live in NH & driving in the snow for these 21 years was never a problem with 2 W/D. However, because of the drive line vibrations you covered primarily on 2 W/D, I decided to get a 4 W/D instead. You guys saved me a lot of heartache. Just for the record this is what I have:
2K GMC Sierra, SLE, 4 W/D, 1500, Short Bed, Regular Cab
3.73 Locking Differential
Plow Prep Package
Polished Aluminum Wheels (Good For Resisting Corrosion From Road Salt)
Active Transfer Case
Sliding Rear Window (No Leaks)
Color: Toreador Red W/Pewter (Sorry about that Ryan)
ARE - Hard Tonneau Cover W/Nomadic "Glider" Roof Rack
8000 Miles And Enjoying Every Trip (Smooth, Quiet & Strong)
#47 of 1492 Rear door wind noise
Jan 12, 2001 (10:21 am)
I know I read about this somewhere in the forums, but is there a TSB out for the 4door Ext cab rear window wind noise? I drive a 2k 2500 and at about 3000 miles the drivers side rear door window made a 'pop' and now it has wind noise like a hurricane. If I pull in on the latch firmly, I hear a pop inside the trim, but as soon as I get back up to highway speed, "pop" and the noise is back. The window stays latched, just not very tight. Before I take this in for warranty, I want to be armed with any data on a TSB.
#48 of 1492 Re. rear door wind noise
Jan 13, 2001 (1:58 pm)
On the first visit back to the dealer for wind noise, they replaced the rear window latches per the most recent TSB they had at the time. That did nothing to help the problem. Yesterday they replaced the entire window and frame on both sides as per a new TSB. That seems to have done as much as the latch replacement did ! Don't know what they will try next, but the local GM re is scheduled to drive my 2000 Sierra so he can feel the torgue converter lock up at 38 miles and hour. Perhaps he will notice the wind noise while he is downshifting my automatic transmission to get it to go to a lower gear !!
I would have your dealer at least replace the latches, it might help your problem.
#49 of 1492 When test driving for the converter lockup, best to
Jan 13, 2001 (2:54 pm)
take the truck up to 50-55 then back down to 38-40. That way you're insured that OD is engaged.
#50 of 1492 Latest TSB on rear quarter windows
Jan 13, 2001 (2:55 pm)
Seems GM has gone 50/50 on mine as my drivers side is fine but the passenger still leaks air.
#51 of 1492 Converter Lock-up
Jan 14, 2001 (6:36 am)
Actually, that is when the converter is locked up. If I am cruising along around 50 mph or so, and I have to slow down into the 38-42 mph range, the transmission will not downshift itself. As I explained to the dealer, it's the same as having a manual transmission and driving it in 4th gear when you should be in 2nd or 3rd.
The service techs at GM that the dealership contacted, told them that this is the way the truck is designed in order for them to meet EPA gas mileage requirements. They say that if I don't like what I am experiencing, that I should downshift it into third. I feel that they owe me the 800 dollars I paid for the automatic transmission if I indeed need to shift it. This is my third GMC in the past 12 years and with out a doubt the most troublesome. Makes me wonder if I will want another one in the future.
#52 of 1492 You could drive around in third as OD will not
Jan 14, 2001 (7:19 am)
engage and no driveline growl. The dealer is correct in that there is no fix for this. They reprogrammed mine twice as there was another calibration update. It shifts into third a little sooner when depressing the gas when in OD at 38 mph. It is an improvement but not as much as I had hoped for. You can find the calibration update listed here:
#53 of 1492 Thanks for the wind noise infor
Jan 14, 2001 (5:33 pm)
on my truck it sounds like the drivers side is the bad one
#54 of 1492 Latest TSB for leaking quarter windows....
Jan 14, 2001 (6:41 pm)
99-08-48-001A. Seems like they may have done it already if one side doesn't leak.
#55 of 1492 '97 gmc tranny problem
Jan 14, 2001 (7:05 pm)
I have just experience a rather unusual occurrence with my 1997 GMC K2500. When pulling about a 3200lbs trailer down hill at about 55mph in 3rd gear, the tranny (four speed auto, coupled to the 454cid gas) came out of gear on its own and the tranny emitted grinding-gear sound, like the sound heard when putting a vehicle in park whilst still underway.
It did this three times. Each time I put it in neutral and the sound diminished immediately until going away. (Within seconds)