anotherwagner

I have a 91 with a 350 and I have an odd knock

I only happens when the air temperature is in the Low 80's and below, then it only happens at idle. It only happens when the engine is up to temperature, Then of you turn on the a/c or put and other load on the engine it will stop for a while.

Any ideas?

I doesn't affect performance it's just really irritaiting not knowing what it is because short of rebuilding the engine I don't know how to get rid of that horrible sound. And I don't have the time or money to do so right now.

abaird

I don't know if this will help but when it was really cold out my 97 would sound pretty crappy at start up so I switched to synthetic oil and it seemed to help out in my situation.

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2009 Silverado 1500
2002 Camaro Z28(rebuilder)
2005 Yamaha GP1300R

69Charger

Sounds to me like a possible cam bearing... older 350's were bad for it

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Mark Mcknight
Elmvale Truck & 4x4
(705)-715-7867
Elmvale, Ontario

87 Mustang GT, 5.0L 5 spd, MSD ignition, BBK tubes, flowmasters, tri-ax shifter, 4.10 gears
69 Charger SE, stroked & poked 383,727 over 550rwhp
86 Chevy 2500 4x4 Plow truck, 350/TH400, 8ft fisher plow