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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DEEP RED 87 IROC-Z
350, 5.7 TPI, auto
Few bolt on mods
-3" Flowmaster catback system
-Accel plugs, wires, and distributor cap
-MSD coil
-K&N Airfilters
-SLP Airfoil
-Brand new paint job
-Hypertech Thermomaster Power Chip
-Hypertech 160 degree thermostat
-Macewen white face overlays
-Xenon Blue bulbs from Macewen
More to come soon!!

 

Can anyone help me please...

 

sounds like a ping. (detonation)

NOT good.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
and 2 POS commuters...

R.I.P. #3
"He can see air"

 

Yes it is a ping. Try some better gas or check your timing (too far advanced) causes preignition (pinging).

 

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

Theme song for my GTA Cake - The Distance