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Pickups Chevrolet Silverado & GMC Sierra GMC Sierra: Problems & Solutions 
1492 messages, Last post on Oct 12, 2006 at 5:32 AM
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I have a 97 GMC Z71. Bought new, 24,000 mi., taken "WELL" care of. I have replaced the the "Door Sill Trim" 2X on Drivers side & 3X on Passenger side. The trim (this trim includes black strip that rides against window) cracks! My Drivers side has just recently cracked again. Does anyone know if there is an aftermarket piece available? Interior color is "Neutral (Tan"). I don't use the panel as an armrest either. Got any connections at GM to ask? Thanks for your help. |
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I have a 97 GMC Z71. "Numerous times", I've had to spray the Torsion Bar Mtg Bushings with silicone to stop a "Dry Rubbing Sound" when stopping at low speeds. Also, I've had to lube the Body Mtg Bushings for body flex noise. Are there any more permanent cures? (Maybe teflon lined bushings?) I like the truck and don't wish to change brands. I'm sure GM was trying to correct some of these problems with their frame changes on 99 models. Thanks for your help! |
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| Does anyone know whether GM has a fix on the wind noise around the front and rear doors on a 2000 GMC ext cab pickup. Dealer has been giving me all sort of comments about he has fixed it but is reoccurs when there is a slight cross wind. Very annoying.. | |
| there isn't much the dealer can do. The door hinges are welded on so there is no possibility of adjusting the doors for a better fit. I guess GM wanted to save money on bolts. The solution is to break the welds, adjust the doors, and install bolts to replace welds. They have issued a TSB for the older C/K's on this but none for the newer silverado/sierras | |
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I installed a bug deflector on my 2000 1500 ExC SB Sierra and immediately noticed a loud rattling noise around the front window when I was doing around 55 mph. I had heard that some deflectors will cause the rubber weather stripping around the top of the windows to vibrate. I removed the deflector and noticed that the noise went away. I decided to exchange the deflector for a different brand and different style and tried it again. The results were better, it didn't get noisy until I was around 65 mph but the faster I went the noisier it got. I decided to put up with the noise for the time being as I am going to trade up to an 8.1 2500. Hope this might help others who are having a similar problem. |
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The Lund Interceptor has been used by Tahoe, Yukon, Sierra, and Silverado owners with no problems. For $50 you may want to try it, unless 1-you can live with the wind noise 2-you plan to trade soon Good luck! |
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| you may want to order a Lund Interceptor for it, hopefully Lund has one by then.... | |
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Vehicle: 1999 GMC Sierra 1500, 4wd, ext cab, 5.3 l, 4.10 diffs(rear locking). Description: When transmission is cold (below 25 degrees)the 2-3 upshift does not occur until 32-33 mph. As the transmission warms, shifting becomes normal. Under light acceleration, approximate normal shift is: 1st-2nd: 10 mph; 2nd-3rd: 20 mph; OD: 35 mph. 33 mph in 2nd gear is 2500+/- rpm, way to fast for a cold engine (or transmission). This has been a problem since the first winter (99). Not a problem in warm weather but the cold has returned & it's the same as last winter. Transmission was serviced in Sept (flushed) w/approx 32K miles. My brother inlaw has a similar setup (4wd/5.3/3.73/sb)& has the same problem. His dealer said this was 'normal'. Any advice on this problem? |
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I have roughly the same vehicle that you do, except mine's a 2000 Z71. The owners manual(2-23) says that when the temperature gets below 32 degrees, the transmission is designed to shift differently until the engine reaches normal operating temperature. Something about improving heater to performance. M. |
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This behavior is by design, it is not a problem even though it may be annoying. |
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