help car making terrible noise
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help car making terrible noise
well my 91 z28 350 tpi has been sitting for a year but started regularly, the alternator went out so i replaced it took it down the road got on it pretty hard, and it took a while to shift but when it did it shifted hard and is now making a loud clanking noise, i thought i spun a bearing or rod, but my dad thinks it isnt, i drained the oil no metal shavings or anything. then i thought it could be the flywheel or torque converter but all that looks good, i cant really pinpoint where its coming from, it idels smooth but doesnt have the power it use to any suggestions. thanks please help
Last edited by dantheman9285; Jul 19, 2007 at 03:47 PM.
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From: Northern, VA
Car: Pair of 92 Z28s
Re: help car making terrible noise
Is a fast noise or a slow noise, more of a knock or more of a tap?
Hows your oil pressure?
Can you pinpoint exactly where its coming from? Id pull the valve covers and have a look even if your not sure, broken, loose, bent stuff you should be able to tell. Visually inspect first then id start the car and watch the valves move.
Hows your oil pressure?
Can you pinpoint exactly where its coming from? Id pull the valve covers and have a look even if your not sure, broken, loose, bent stuff you should be able to tell. Visually inspect first then id start the car and watch the valves move.
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Joined: Jun 2006
Posts: 391
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From: NC johnston co
Car: 1988 IROC-Z
Engine: 350 TPI
Transmission: 700r4
Axle/Gears: 2.77 posi stock
Re: help car making terrible noise
yeah just take the valve covers off,u may have a broken valve that is slapping the out hell out of the piston.but im going to break it to u its probably a rod bearing.
also my car is making a hell of a noise to took the valve cover off everything was good.crank the car up have very good oil psi 56lb.so now im going to take the oil pan off and replace the bearings.if the crank isnt bad..
also my car is making a hell of a noise to took the valve cover off everything was good.crank the car up have very good oil psi 56lb.so now im going to take the oil pan off and replace the bearings.if the crank isnt bad..
Last edited by alpine247; Jul 19, 2007 at 05:36 PM.
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From: Baton Rouge, LA
Car: 89 RS
Engine: 305
Transmission: th350
Re: help car making terrible noise
yeah just take the valve covers off,u may have a broken valve that is slapping the out hell out of the piston.but im going to break it to u its probably a rod bearing.
also my car is making a hell of a noise to took the valve cover off everything was good.crank the car up have very good oil psi 56lb.so now im going to take the oil pan off and replace the bearings.if the crank isnt bad..
also my car is making a hell of a noise to took the valve cover off everything was good.crank the car up have very good oil psi 56lb.so now im going to take the oil pan off and replace the bearings.if the crank isnt bad..
Dan, it could still be your flywheel. When they crack they will make ALOT of noise. They usuraly crack around the crank bolts.
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Re: help car making terrible noise
thanks you all for your help, i know how to do basic maintenance but nothing like tearin into the motor, ive reading the archives about the flywheel being cracked guess ill chekc that first, i took the cover off, but i really dont know how to take it off the torque converter is in the way. do i have to take out the tranny to get to it or what?
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