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Chevrolet Avalanche Engine Problems

27 messages,  Last post on Nov 08, 2009 at 12:02 PM

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#8 of 27 Engine want start by upstech Aug 02, 2007 (5:28 pm)
While driving down the street the truck lost power.When I tried to crank it backup it start when I turned the key
#9 of 27 Re: Engine Dying [hbd] by heath2002 Aug 23, 2007 (5:29 pm)
Replying to: hbd (Apr 12, 2007 2:06 pm) I have a 2002 avalanache 2500 8.1 that just dies going down the road. I see others with the same problem what was done to fix it. Replies to this message: waldo560 (Dec 17, 2008 1:56 pm)
#10 of 27 Chevy engine noise help by mrjwalkr May 23, 2007 (6:38 am)
#11 of 27 Chevy engine noise help by mrjwalkr Apr 16, 2007 (9:58 am)
Just bought a used 2004 Chevy Avalanche. Love the truck. Nevertheless, a few weeks later i get this chirping noise from the engine. Belts, pulleys, tensioners... Gotta parade to participate in so i run it over to Sears who replaced the AC tensioner. 30 mins later the noise returned. They said they "missed" diagnosed and the noise was coming from the alternator. Probably the bearings. I replaced the alternator myself. 30 mins of riding later, the noise returned. Sorta a chirping, squealing, belt/pulley noise. Not seeing any ill effects but pretty annoying. Any ideas? Replies to this message: sp7128 (Apr 06, 2008 2:24 pm) alanm311 (Apr 22, 2008 11:46 am) rick109 (May 08, 2008 4:01 pm) hicks2281 (May 11, 2009 7:18 am)
#13 of 27 Re: Piston Slap [andromador] by sparky75 Jan 25, 2008 (12:27 pm)
Replying to: andromador (Jun 28, 2007 11:37 pm) I had a 2001 silverado Z71 on a lease, I had this vhichle 61 mo. on a 60 mo. lease. I loved this truck, but at 9,200 mi I got a ticking noise in the engine, well over and over I went to the dealership, and Finally they admitted this was the "piston slap" that GM was getting a bad rap over. I did not know where to turn because the dealership was saying ther is NOTHING we can do to fix it. I got a tip from an attorney friend of mine, and he said go to the BBB and file a complaint. Well I took his advice and sure enough! Chevrolet called me 2 days later. The lady flat out asked me what I wanted them to do, basically name it. I told her I was a huge fan of Chevrolet and liked my truck, just back up what your dealership is saying "it is not a problem to worry with." She said no problem, we will extend warranty FULL WARRANTY up to 115,000 mi or 72 mo. Well I was ok with that.. So now my lease on that vehicle was fullfilled and I bought a New 2007 Chevy Avalanche. I purchased this Oct. 2006. I now have 10,200 mi and Guess what!!! It started ticking! I just picked it up from the dealer 3 hr ago and they said "WE CAN"T FIX IT"!!!! If you have piston slap I would file W/ BBB.com You will get results!!! Looks like I will be doing it again too...
#14 of 27 Anyone Else???? by sparky75 Jan 25, 2008 (5:13 pm)
Does anyone else have a cold start ticking noise from the 5.3L AV engine, and if so what is your dealer or mechanic saying about it? I need help.... My dealer says it is because Chevrolet has hydralic lifters, and when the oil is cold they tend to ping?? All replys WELCOME......... Replies to this message: rocky07 (Jan 31, 2008 9:49 pm)
#15 of 27 Re: Anyone Else???? [sparky75] by rocky07 Jan 31, 2008 (9:49 pm)
Replying to: sparky75 (Jan 25, 2008 5:13 pm) sparky75 and andromador......I have a cold engine ticking but it's not piston slap. Before you you are convinced by a dealer that it is piston slap, go to www.pistonslap.com and listen to the audio sample. Piston slap can occur in one or more of the cylinders depending on your vehicle. My '07 does NOT sound like that. And, if you have an '07, it is very likely that you do NOT have piston slap since GM changed the method for matching pistons to cylinders (by size & tolerances) for the '07 model year. Incidently, the link I referred to will give you a description and reason behind piston slap. Dealers often use piston slap as an excuse since the problem is widely known.   The tap I have, sparky75, is related to the hydraulic lifters however not as the dealer explained to you. My tap is NOT at every cold engine start. It is only on cold starts after one of the valves for 1, 4, 6 or 7 cylinders (they are the 4 cylinders that shut down in the V4 mode) while one the high-point of the cam. Then, during the cool down period, the hydraulic pressure bleeds off. Then, when started cold, there is valve lash for over 1 minute (sometimes for 2 minutes) until the hydraulic pressure is sufficient to build up the lifter. The resulting tap is the rocker arm slamming on the valve top as a single, metal-to-metal tapping sound.   I still have no resolution with my dealer, but hadn't thought of the BBB as an avenue. Might try that one.
#16 of 27 Re: Chevy engine noise help [mrjwalkr] by sp7128 Apr 06, 2008 (2:24 pm)
Replying to: mrjwalkr (Apr 16, 2007 9:58 am) what was your problem/cure.......my 8.1 started this last night and I noticed some play in the serpentine belt tensioner,,,but I know gm is famous for alternator noise....85k miles Replies to this message: alanm311 (Apr 22, 2008 11:46 am) rick109 (May 08, 2008 4:01 pm)
#17 of 27 Re: Chevy engine noise help [sp7128] by alanm311 Apr 22, 2008 (11:46 am)
Replying to: sp7128 (Apr 06, 2008 2:24 pm) I own a 2004 Avalanch, 87K , sqeaking, :o( I have changed my tensoiner and belt, last week, the next day the sqeeking is back. . same issues you guys are having, have you fiqured this one out. please advise   Thanks   Alan Replies to this message: rick109 (May 08, 2008 4:01 pm)

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