knocking noise

97gsr

Junior Member
Ok this is odd....When accelerating at RPM's above 4000 my 97 gsr makes a barely noticeable knocking sound, and a more noticable pulsation in the gas pedal. This only happens maybe half the time and only when the engine is warm. Any suggestions on what could be wrong?....thanks.
 

Jdm Delsol02

Junior Member
:blink: Sounds like to me the rods are knockin, LOL! Naw i don't know whats wrong, i suggest to go get it checked! and by the way turbocharge that $H*T and throw in some other mods!
 

Domeskilla

Senior Member
Originally posted by 97gsr@Jan 1 2003, 11:15 PM
Ok this is odd....When accelerating at RPM's above 4000 my 97 gsr makes a barely noticeable knocking sound, and a more noticable pulsation in the gas pedal. This only happens maybe half the time and only when the engine is warm. Any suggestions on what could be wrong?....thanks.

Might be cheap gas.
 

chevy302dz

Senior Member
If it happens when you rev the engine while you are in netural then it is the bottom end. If it only occurs while under a load, then the engine is running lean or to low a octane gas is being used.
 
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