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GMC Sierra: Problems & Solutions - READ ONLY

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

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#1089 of 1492 Re: electrical problems with 1999 GMC Sierra 1500 5.3 V8 [lee23] by gmctruck Jul 15, 2005 (3:41 pm)
Replying to: lee23 (Jul 15, 2005 6:05 am) Check for loose or bad ground wire connections. The AC and windows should be on different circuits, so a bad ground connection is one of the few things that could affect both at the same time. Loose ground wires are a common problem on GM vehicles. I can't tell you where they are located for sure, but look around on the back of the firewall. Your "bump in the road" description would indicate a bad or loose connection some where. I also have a '99 Sierra, but have not seen this problem on mine... (knock on wood).
#1090 of 1492 Re: 2000 Sierra Pulls to the right [zrt7] by boozer Jul 16, 2005 (7:39 pm)
Replying to: zrt7 (Jan 08, 2001 8:56 am) Ihave the simular problem whit my 2003 sierra but it pulls to the left makes it difficult to keep strait especialy in windy days ...or/ and at hyw speed. brought it to the dealership numberous times to have them tell me that they cant duplicate the problem. one dealership did noticed it and couldn`t find a fix...then told me that it was normal caracteristic of the truck. wow hein! gm sells trucks that swerve all over the road...and to think that they say that there professional grade. since new it has had problems on just about every powertrain components,change some part in the transmission. later changed the transmission; had to fight for this to happen until itgot to the point that the transmission would slip when engaging the passing guear. And even at that point they were checking for abuse of any kind just to try to make me pay the bill. diff was worked on,tranfercase, 4x4 modual, drive shaft,brakes, brake booster, steering shaft,reprogram the computer x number of times and still today it drives like a geman tank. what a what i noticed was that everytime they reprogram the transmission it drove like on a cloud...whit no pull. I think from my experiance that gm has computer problems (some glitch in the computer) becouse the shifting problem or the pull goes away sometimes after turning the key off and starting it again as I`m driving in nutral
#1091 of 1492 Problem starting and trouble shifting by onefbi Jul 16, 2005 (9:47 pm)
I have a 1999 Z71 1500 5.3 engine. I have problems starting it, usually taking 2 or 3 times to start and trouble shifting gears. However I took the pressure regulator off and put it back on and the truck ran O.K. for a little while. Has anyone had these problems?? Replies to this message: mbat (Aug 03, 2005 10:31 am)
#1092 of 1492 again no DEALER SUPORT!!!!!!!!!! by rickytbone1 Jul 19, 2005 (5:28 pm)
just got my truck back after 3 days in shop.yep NOTHING GOT FIXED.FREAKING GM DEALER.THEY REPLACED TRNSFER CASE MODULE MADE IT WORSE(NICE JOB).CLUNKING, THEY COULDN'T HEAR(SHOCKER).ITS THERE TRUST ME!!!!!!!!!!!!!!!!!!!!!!. KNOCKING IN MOTOR WHEN COLD, NORMAL THEY SAID. I SHOWED TSB(TECH. SERVICE BULLITEN)TO THEM, STILL DIDNT FIX THE PROBLEM.(OIL SCREEN O-RING IS BAD) SO MUCH FOR PROFESS. GRADE TRUCKS I THINK THERE GRADE SOULD BE AN FFFFFFFFFFFFFFFFFFFFFF. Replies to this message: gmctruck (Jul 20, 2005 10:35 am)
#1093 of 1492 Re: 99 GMC Sierra 1/2 Ton 2wd gurgling sounds [gmcproblems] by gmctruck Jul 20, 2005 (10:02 am)
Replying to: gmcproblems (May 20, 2005 10:20 am) "I was wondering if anyone has heard a gurgling sound/ rattle coming from the dash area(passenger side more). It only occurs when truck is under load in 1st, 2nd, 3rd gear, you don't hear it in overdrive."   If the sound is coming from the center area of the dash, you might have an air pocket in the heater core. You can easily fix this by doing a "purge" procedure on the cooling system and the gurgling sound should go away. I have a '99 Sierra and this procedure worked for me. I just copied this from another forum and take no credit or responsibility for it's content or creation. The procedure does work if the gurgling noise is coming from the heater core.   Here ya go:   Get a jug of DEXCOOL (Havoline brand is GM approved). Park on level ground.   The engine needs to be cool, or just slightly warm is fine too.   Add fluid in the surge tank until the level is slightly above the split line on the tank (an inch or so).   Put cap back on loosely, don't allow it to build pressure.   Start engine and let it idle for a minute.   Then, cycle the engine from idle to 3000rpm in 30 second intervals until the engine coolant reaches operating temp and the thermostat opens.   Shut off engine and remove the cap.   Start engine and let it idle for a minute. Fill the tank to 1/2 inch above the "Cold Full" mark on the tank & put cap back on loosely.   Cycle the engine like before and wait for the thermostat to open again, then shut off the engine.   Put more fluid in if necessary, the fluid should be a half-inch or so above the Cold Full mark.
#1094 of 1492 Re: again no DEALER SUPORT!!!!!!!!!! [rickytbone1] by gmctruck Jul 20, 2005 (10:35 am)
Replying to: rickytbone1 (Jul 19, 2005 5:28 pm) Sorry to hear you're still having problems. The best advice I can give you is to call GM Customer Assistance and open a case file. This is important because it creates a formal record regarding your complaint which may be critical if you exercise your rights under the lemon laws of your state. GM Customer Assistance will also work with you and the dealer to help resolve the problems. You can go to another dealer... all service departments are not created equal. Some service departments get offensive when you pull out a TSB because they feel as if you're telling them how to do their job. Other service departments appreciate it when you show them a TSB because they don't have to spend time looking up the TSB information and it saves them diagnostic time. I've had both experiences!!   After going to three different dealers, I found one that took care of all the problems my truck had in one visit without giving me any hassle or run-around. Guess which dealer gets my service business now? I know that all brands have their share of crappy dealer service departments, but I think this is one problem area that GM has failed to address that turns people away from buying GM products. All brands have their share of problems, but the actions taken by the manufacturer and the dealers to resolve those problems is what makes a difference. They can't just say "it's normal" and send you on your way. Make them show you a brand new truck on the lot with the same noise if it's "normal". If you were out of warranty, I'll bet they would find something wrong to generate service revenue and get money out of your pockets. Try another dealer if you're not happy with your current one. Don't give up because that's what the "stealer" wants you to do!
#1095 of 1492 transfer case problems by ssdpturner Jul 20, 2005 (10:50 am)
Has anyone had problems with the transfer case starting to leak? I just bought my 2000 GMC Sierra 1500 4X4 a few months ago. It had 52530 miles on it. I got a 3 year/36000 mile warranty with it when I bought it. Anyways, has anyone had problems with the transfer case at all and does anyone know if a the GM Warranty would cover this? Replies to this message: gmctruck (Jul 20, 2005 10:58 am) ssdpturner (Jul 21, 2005 11:41 am)
#1096 of 1492 Re: transfer case problems [ssdpturner] by gmctruck Jul 20, 2005 (10:58 am)
Replying to: ssdpturner (Jul 20, 2005 10:50 am) I have heard of some leaks caused by a bad seal, Since the transfer case is part of the drive train, I would imagine that the warranty would cover it. But those warranties have all kinds of fine print these days, so it's hard to say for sure. If there are any signs of past abuse by the PO, you could get stuck, but I doubt it since you haven't had the truck for very long.
#1097 of 1492 Re: transfer case problems [ssdpturner] by ssdpturner Jul 21, 2005 (11:41 am)
Replying to: ssdpturner (Jul 20, 2005 10:50 am) One more question to my problem......When I go to 4HI or 4LO, it acts funny, but as long as I am in 2HI, it seems to drive alright. Is it safe to still drive as long as I stay in 2HI? If you have not noticed, I don't know to much about engines other than minor troubleshooting and minor maintenance, i.e. changing oil, alternators, coolant.
#1098 of 1492 gmctruck by noobie1 Jul 22, 2005 (9:58 am)
Your right on about GM and their lack of support. A lot dealers have learned how to work the company: charging the company for fixes that don't fix the problem. Instead of spending time analyzing it through the methods spelled out in the manuals they'll change out parts hoping for success. When that fails then it's "normal". I've had that happen. Afterward, I showed the service writer a TSB relevant to the problem who, in my presence, threw it in the trash without reading it! I haven't been back. GM surely knows about all this and presumably because of a bottom line mentality in the board room does nothing. If it weren't for all the wonderful, dedicated people working there I'd say they deserve to go belly up.   -BTW: I still love my truck.   -David

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