Noise diagnosis UPDATED
#1
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Noise diagnosis UPDATED
Okay heres whats happening
At idle and sometimes higher, in park, u can hear this light grinding noise, that is notable from the inside of the car, i put my scope to the nose cone, i couldnt hear the grinding any louder. Also i checked the oil in the */C it is full to the bottom of the threads.
the sound will just dissapear, then if i rev the car up, it returns.
Any ideas?
ALSO the noise is without a doubt coming from the front of the engine as in were all the pulleys are, almost sounds like its in the water pump area..
At idle and sometimes higher, in park, u can hear this light grinding noise, that is notable from the inside of the car, i put my scope to the nose cone, i couldnt hear the grinding any louder. Also i checked the oil in the */C it is full to the bottom of the threads.
the sound will just dissapear, then if i rev the car up, it returns.
Any ideas?
ALSO the noise is without a doubt coming from the front of the engine as in were all the pulleys are, almost sounds like its in the water pump area..
#3
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Try using a piece of heater hose next to your ear or a mechanic'* stethoscope while the engine is running. If that doesn't pinpoint the noise, you can remove 1 belt at a time and run the motor for a few seconds to see if the noise is gone. You can even run the motor for a few seconds with both belts off to see if it'* the crankshaft balancer (I had to do that a couple of weeks ago).
Once you isolate which belt drives the noisy part, spin each part by hand with the belt off and try to listen for unusual noise.
Once you isolate which belt drives the noisy part, spin each part by hand with the belt off and try to listen for unusual noise.
#4
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Originally Posted by billha
Try using a piece of heater hose next to your ear or a mechanic'* stethoscope while the engine is running. If that doesn't pinpoint the noise, you can remove 1 belt at a time and run the motor for a few seconds to see if the noise is gone. You can even run the motor for a few seconds with both belts off to see if it'* the crankshaft balancer (I had to do that a couple of weeks ago).
Once you isolate which belt drives the noisy part, spin each part by hand with the belt off and try to listen for unusual noise.
Once you isolate which belt drives the noisy part, spin each part by hand with the belt off and try to listen for unusual noise.
#8
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this is the fifth tensioner assembly for the SC it has gone through, i have an old one, i will try that one tomorrow, also in drive at a stop it has about -8lbs of boost on the gage were as it was around -10 befor..
#9
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Today i went to start the car, i heard this squealing coming from the engine compartment, so i opend the hood, and right away i could tell it was the SC tensioner, so i dug out the original tensioner and installed it, problem solved, but why the hell does this car eat tensioners!? My teacher said most SC'd cars have mechanical tensioners that lock once you've adjusted them..
#10
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Originally Posted by SSEimatt93
Today i went to start the car, i heard this squealing coming from the engine compartment, so i opend the hood, and right away i could tell it was the SC tensioner, so i dug out the original tensioner and installed it, problem solved, but why the hell does this car eat tensioners!?
Okay, _three_ possibilities, if you want to include a cat with its tail stuck in the tensioner...
My teacher said most SC'd cars have mechanical tensioners that lock once you've adjusted them..