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| 3800sc swap, very strange thing happening (Page 2/2) |
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Lou6t4gto
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FEB 18, 06:55 PM
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good idea, I'll check that. why only in "drive" and not reverse or neutral ?
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sourmash
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FEB 18, 07:54 PM
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| quote | Originally posted by Lou6t4gto:
no heat shields, NOTHING near anything" spinning" as far as I can See. |
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Doesn't have to be something spinning. It can just be a frequency that vibrates something at a certain one.
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Lou6t4gto
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FEB 18, 11:13 PM
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no, it is a "scraping" sound (like if a spinning pulley was touching something), but it's not. cross between a major vacuum leak (sucking kind of noise) and scraping.
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jb1
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FEB 24, 03:47 PM
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Is the scrapping when the car moves or just in gear with foot on brake???
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jb1
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FEB 24, 03:49 PM
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Is the scrapping when the car moves or just in gear with foot on brake??? I ran into issue with n* swap 1 torque converter bolt had backed off a little and made one hell of a noise when in Drive.
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Lou6t4gto
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FEB 24, 06:30 PM
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just in drive, does not need to be moving
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Spoon
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FEB 26, 11:12 PM
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| quote | Originally posted by Lou6t4gto:
just in drive, does not need to be moving |
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Check your motor & transmission mounts. My theory is with foot on brake while in drive the motor & trans or exhaust will torque or tilt to one side and rub against something. In reverse it will tilt away and touch nothing. In neutral there will be no tilting.
I had similar thing happen on a Jeep of mine due to a bad engine mount and only in drive while taking off under mild acceleration. Turn out to be fan rubbing the shroud. I know a Fiero has no fan shroud in the engine bay but you get the idea.
If all else fails, you could try a neutral drop at a predetermined rpm to remove any doubt. You did mention the transmission was new, right?
Spoon------------------
"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut
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