What is this noise?!?!?!?!
#21
06-20-2010, 09:40 PM
Join Date: May 2009
Location: Farmington Hills, MI
Posts: 1,671
I think not, because I have another AC compressor sitting at home. For me, no AC is not an option for a summer DD.
#22
06-20-2010, 11:10 PM
What I am thinking is there is an idler pulley in place of the AC comp on his engine. THere is on the 3.4L and I do know they run the same AC comp. I tried to look up the belt diagram at work today but it didnt list one for non AC cars. and the belts were only a couple MM different in size.
Massey
#23
06-21-2010, 09:57 AM
Join Date: May 2009
Location: Farmington Hills, MI
Posts: 1,671
I can tell you for sure that there is not an idler in place of the AC Compressor in my car. I put in the AC compressor myself.
#24
06-21-2010, 10:56 AM
I kinda figured that. What I was trying to say is dont just delete the AC comp without checking to see if an idler was needed. I could not give you the 100% answer on that because my systems at work didnt show the belt routing for the non AC car. Putting a new comp in place of the dead one is the best way to go any way.
Massey
Massey
#25
06-23-2010, 09:27 PM
Join Date: May 2009
Location: Farmington Hills, MI
Posts: 1,671
I looked at it again with the guy at AutoZone, and he also confirmed it's a rocker/lifter issue. I really need to get it taken care of by the end of next week (impending 500 mile drive). Any suggestions for what rockers/lifters I should get? New or used? OEM or aftermarket?
#26
06-23-2010, 09:34 PM
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 18,306
I would first take off the valve cover and do some exploring. If you're lucky, it could be something that won't require dismantling the engine, like:
A rocker adjusting nut could have worked loose.
A rocker arm could have gotten badly worn; I once bought a car where the rocker arm wore so bad that the pushrod launched through the tip of the rocker.
You could have a bent pushrod.
A rocker adjusting nut could have worked loose.
A rocker arm could have gotten badly worn; I once bought a car where the rocker arm wore so bad that the pushrod launched through the tip of the rocker.
You could have a bent pushrod.
#27
06-23-2010, 09:42 PM
Join Date: May 2009
Location: Farmington Hills, MI
Posts: 1,671
I would first take off the valve cover and do some exploring. If you're lucky, it could be something that won't require dismantling the engine, like:
A rocker adjusting nut could have worked loose.
A rocker arm could have gotten badly worn; I once bought a car where the rocker arm wore so bad that the pushrod launched through the tip of the rocker.
You could have a bent pushrod.
A rocker adjusting nut could have worked loose.
A rocker arm could have gotten badly worn; I once bought a car where the rocker arm wore so bad that the pushrod launched through the tip of the rocker.
You could have a bent pushrod.
#28
06-27-2010, 05:04 PM
Join Date: May 2009
Location: Farmington Hills, MI
Posts: 1,671
took the valve covers off today. I'm pretty sure the only thing that accomplished was pissing me off. I'm pretty sure the problem is on the driver's side, but I couldn't see any difference from one side to the other. I still have no idea how to fix that valvetrain issue.
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#29
06-27-2010, 07:10 PM
Im sorry to hear. From the videos I find it doubtfull that it is a lifter. It sounds more solid than anything else. At first I thought a connecting rod but later after reading comments from others I would agree that it could be the balancer or one of the accessories. I assume that since you pulled the covers that you already pulled the belt and tried it witout it, right?
good luck!
good luck!
#30
06-27-2010, 08:43 PM
Join Date: May 2009
Location: Farmington Hills, MI
Posts: 1,671
I've had a two people look at it and diagnose it as a valvetrain issue. The Chevrolet dealer shop that looked at it said they tried it without the belt and that wasn't the problem (although I wasn't really that pleased with them and I kinda didn't trust them).