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Car makes clattering noise right before shift at WOT (please help)

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Old 08-25-2001, 04:06 AM
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Car makes clattering noise right before shift at WOT (please help)

When I am racing or whatever, just drivin fast...my car makes a clattering noise right before it shifts. It usually only does it at that point. It kinda sounds like teeth chattering. A friend who knows a bit more about cars said that he thinks its the U-joints. Can anyone help?

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Old 08-29-2001, 12:52 AM
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Can anyone help me please...
Old 08-29-2001, 12:54 AM
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Car: yep
Engine: uhuh
Transmission: sure does
sounds like a ping. (detonation)

NOT good.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
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and 2 POS commuters...

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Old 08-29-2001, 01:03 AM
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Car: 88 T/A
Engine: 305
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Yes it is a ping. Try some better gas or check your timing (too far advanced) causes preignition (pinging).
Old 08-29-2001, 09:50 AM
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Ping, why cause I have the same thing, but I run 94 octance and it still does it, granted my ign is going (code 43).

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1989 Trans Am GTA, 5.7L TPI, TH700-R4, T-Tops, dual cats, 9-bolt rear, 3.27, Dynomax muffler, K&N
1992 Camaro RS, 5.0L TBI, T-5, T-Tops, 3.08, L69 Dual Snorkel, K&N - Sold

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