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GMC Sierra: Problems & Solutions - READ ONLY

1492 messages,  Last post on Oct 12, 2006 at 5:32 AM

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

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#1461 of 1492 Re: 2003 GMC 1500 Speedometer Problems [goldsmde] by bomarsh810 Aug 07, 2006 (6:56 am)
Replying to: goldsmde (Jun 04, 2006 12:03 pm) I have a 2003 GMC 1500 Z-71 and at 60,000 miles my speedometer did the exact same thing and then finally froze up pegged at it's max. It cost me $1,100 for the dealership to replace the entire instrument cluster. Now a friend of mines 2004 GMC Envoy is doing the same thing at 55,000 miles. Is it too much to expect the speedometer to to work? Let's just say neither of us are happy campers.
#1462 of 1492 Re: Serious shift problem [inkd] by psmitty Aug 19, 2006 (3:50 pm)
Replying to: inkd (Jul 09, 2006 12:25 pm) I was having problems with my 2000 GMC Sierra 1500 4x4 with the 5.3 engine. At times the engine would not accelerate past 1800 rpm's, the engine had poor performance, and the transmission was slipping. I recently had my truck to a GM garage, and after some research, the problems appear to have been solved. General Motors has a technical service bulletin out concerning aftermarket oil charged air filters, such as K&N. If too much oil is put onto the filter when it is recharged, some oil can transfer to the Mass Air Flow Sensor, and cause it not to work properly. Hard to believe, but true. The bulletin describes everything, including transmission slippage. A new MAF Sensor ($215) and my truck runs perfectly again. The GM mechanic was surprised that a MAF Sensor could cause improper transmission shifts. At no time did the vehicle computer show any codes for these problems. While driving the vehicle with GM's Tech 2 plugged into the computer port, there were improper readings on the O2 sensors in the manifolds, but these cleared up after the new MAF sensor was installed. Hope this helps.
#1463 of 1492 key won't dis-engage engine by kingfishingirl Aug 24, 2006 (10:37 am)
okay, so this is my first post on this forum.... but after reading all the other potential problems i'll have with my sierra truck, this won't be my last. i have a 2000 gmc sierra 2wd v8 4.8... i can't find a chiltons, haynes OR helm manual for it and the local dealers here are putzes. i put my key in the ignition and after starting the truck, it would not dis-engage. i had to put the relays to stall the engine so my starter wouldn't be destroyed but even when i can shift into and drive in other gears and back into park... the key will not spring back out of the forward position. i haven't see nthis as a common problem, judging by the other posts here, so i figured one of yas might know how i can get my hands on a manual so i don't tear up my steering column. i have to go get a few parts after work, and all i have seen are a few screws under the steering column... please tell me there is nothing complicated in there. i am either changing the shifting cable or the ignition switch, hopefully the latter of the two... any thoughts? thanks nikki Replies to this message: kingfishingirl (Sep 01, 2006 9:35 am) kcram (Sep 02, 2006 1:57 pm) kingfishingirl (Sep 05, 2006 3:45 am)
#1464 of 1492 Re: key won't dis-engage engine [kingfishingirl] by kingfishingirl Sep 01, 2006 (9:35 am)
Replying to: kingfishingirl (Aug 24, 2006 10:37 am) okay, no one answered but i will post the result in case anyone was wondering. i removed the steering column cover and put a pin in the hole above the ignition, slid it out and figured out the problem right away. the springs under the cap had worked their way out and the cap was messed up. SO after talking to the local gmc dealer and for the second time them telling me i need to bring the truck in to have my key coded, bought a tumbler kit, replaced the springs and cap ad put the ignition tumbler backin it's place. The main reason I wanted to post this is there are a couple of things that the dealer has told me i had to bring my truck in to have something done and blatently lied to me. 1st, i bought a remote for the truck and when i went to pick it up, they told me i had to take the truck around back so they could program the remote. i thought, COOL! til they told me it would cost $45.00 to do because they have this big machine and blah blah blah. i gave them a few choice words and walked out. went on ebay later that night looking at remotes and found a remote for another vehicle with a link to program remotes free. in about 45 seconds i had my remote programmed, without a machine. and now this key tumbler deal. they told me they had a machine that would code my ignition key to the new ignition. $80.00 so, i politely looked up at the schmuck and asked him, why would i need a machine to do this? i have the 8 digit code and i have the old tumbler with ignition WITH the tumblers still in it. well the machine does all the work and your ignition won't work to your key. so, again with a few choice words, i walked out, went home and fixed it without a machine or more than two brain cells. Replies to this message: kcram (Sep 02, 2006 1:57 pm) kingfishingirl (Sep 05, 2006 3:45 am)
#1465 of 1492 Re: key won't dis-engage engine [kingfishingirl] by kcram HOST Sep 02, 2006 (1:57 pm)
Replying to: kingfishingirl (Sep 01, 2006 9:35 am) Thanks for posting your repair... hopefully this will both save other owners some headache, and alert techs to an easier fix. Replies to this message: kingfishingirl (Sep 05, 2006 3:45 am)
#1466 of 1492 2001 GMC Sierra 2500HD Hot Engine Knock by asrtaylor Sep 04, 2006 (7:40 pm)
From everything I've seen on the internet, and in these forums, the 'piston slap' problem on GMC's 6.0 liter engine occurs when the engine is cold, and goes away once the engine is warm.   My 2001 GMC only knocks when it's operating at normal temperature, usually around the 50 - 60 Kilometers per hour mark, or when hauling something (like my 5th wheel). I don't think it's a piston slap issue, but am very worried about the noise. Any ideas what it could be? Replies to this message: p100 (Sep 06, 2006 5:15 am) asrtaylor (Sep 07, 2006 9:59 pm)
#1467 of 1492 Re: key won't dis-engage engine [kcram] by kingfishingirl Sep 05, 2006 (3:45 am)
Replying to: kcram (Sep 02, 2006 1:57 pm) the website for this and all other types of vehicles free remote programming is www.programyourremote.com
#1468 of 1492 Re: 2001 GMC Sierra 2500HD Hot Engine Knock [asrtaylor] by p100 Sep 06, 2006 (5:15 am)
Replying to: asrtaylor (Sep 04, 2006 7:40 pm) It could be just engine pinging due to low octane fuel being used. Try some premium fuel and see if it disappears. When these truck engines are under substantial load, such as towing heavy trailers, they perform a lot better with higher octane. Replies to this message: asrtaylor (Sep 07, 2006 9:59 pm)
#1469 of 1492 Re: 2001 GMC Sierra 2500HD Hot Engine Knock [p100] by asrtaylor Sep 07, 2006 (9:59 pm)
Replying to: p100 (Sep 06, 2006 5:15 am) THanks. I'll try that. What about using an octane boostr such as 108?
#1470 of 1492 1994 GMC 1500 pickup exhaust leak by phranc2002 Sep 10, 2006 (6:11 am)
I have a 1994 GMC pick up w/ a 350 rebuilt engine. Started making a fluttering noise under the driver's side. I think I have an exhaust leak at one of the gaskets. I have never replaced an exhaust gasket before. Can anyone offer advice or a good manaual or site with advice on how to repair. It doesent look extremely difficult. Would it be better for me to pay a profrssional exhaust guy to replace it. Any idea on cost? Thanks!

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