have 3.8L makes a ping noise when is cold - Ford Mustang Forum
 
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post #1 of 2 (permalink) Old 03-16-2006 Thread Starter
 
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have 3.8L makes a ping noise when is cold

im trying to find out what that noise is all about when ever the car is cold when i just start the car like in the mornings is loses power the gear start shaking and looks like the car wants to turn off. Then i hear a knock on my right side by the front passanger tire. But when the car heat up is runs normal like 3 minutes later. I already changed spark plugs, EGR valve, Solenoid valve I was thinking it might be the MAF sensor by the air intake. I took it to auto zone for diagnostics and showed the the oxygen sensors code are bad, but i don't think the oxygen sensor will make that kind of noise in the car.
If you know any ideas what it could be please reply thanks:thumbsup

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post #2 of 2 (permalink) Old 03-16-2006
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no but the o2 sensors could be giving false reading and telling the ecu to dump for fuel or not enough fuel in.


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