Pinging sound before accelation - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-13-2004, 02:54 AM   #1
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Default Pinging sound before accelation

Now when I am going like 35 MPH then floor it there is a delay before it really picks up which i am sure it is pretty normal, but during that quarter second delay, right before it picks up it has a pinging sound like it is winding up or something, can any one tell me what that is and if it is a big conern, also when going 30 - 60 MPH or even just going 2 mph and trying to keep that speed the RPM'* range frequently changes like it jumps back and forth from RPM'* and you can really feel it in the car also. I cleaned the EGR valve and replaced the gasket but i think doing that made it worst, could my EGR valve being going bad. I hooked up the computer to and it said my EGR valve was open around 8% during idling, if i am not mistaken shouldnt it be at 0 while idling??? But its weird cause the rpms do not change when idling it has a very smooth idling. if you could help me out that would be great. Thanks
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Old 10-13-2004, 02:57 AM   #2
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'm going to guess 94 or 95... What'* your year and trim line?
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Old 10-13-2004, 03:10 AM   #3
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Yeah give us the cars info
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Old 10-21-2004, 04:31 PM   #4
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its a 95 SSEi sorry =/
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