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Posted by 89 stang gt (Member # 1877) on :
 
sometimes when i start my car and give it a little gas it makes a thud noise like a mis fire or somthing anyone now how 2 fix it
 

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Posted by Blind (Member # 3052) on :
 
where does the sound come from?
what kind of a pop is it?
what's your timing at, what's the fuel pressure at, have you pulled the plugs?

it could be hydrolocking from a blown headgasket.
it could be backfiring from running rich when it's cold
it could be an intake backfire from the timing being off, or the pcv being loose or missing.
 

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Posted by 92stangLX (Member # 3252) on :
 
I would start by checking all of your ingition wires and your distributor cap. Next check your fuel pressure.

Is it a mis-fire or is it knocking?
 

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Posted by JohnB (Member # 969) on :
 
This is reallllllly random. Try to be a bit more specific, as your current problem could be literally anything.
 

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