My car has been pinging for a while now. When I put the car in Neutral and rev it I don't hear any pinging. When I put it in Drive and give it any gas I hear it (marbles in a can). It is there whenever I give the car gas and is at its worst at part throttle. Could this be transmission, flywheel, torque converter related? I am thinking this because it doesn't do it in neutral. Let me know your thoughts. Thanks.
Pinging I am getting sick and tired of it
- Thread starter 90VertGT
- Start date
no load on the motor in neutral = no pinging.
have you pulled codes? checked FP when it is pinging? checked timing?
codes might show if you have a lean condition (FP might be on the way out).
do you have your EGR hooked up, and does it work? pay attention to any EGR related codes.
and i would back the timing down (at least for now).
good luck.
have you pulled codes? checked FP when it is pinging? checked timing?
codes might show if you have a lean condition (FP might be on the way out).
do you have your EGR hooked up, and does it work? pay attention to any EGR related codes.
and i would back the timing down (at least for now).
good luck.
The car is an automatic. It does it all the time WOT or just tapping the gas. I have 93 in it right now. The timing is at 10. It was doing this before I had my intake and adj. fp reg put on. The fp is set at 40. The car has 351 heads on it. What kind of spark plug gap do you think I should have? TIA.
Pinging is caused by a number of things:
1.) Hot spots in the combustion chamber such as carbon deposits from high mileage or excessive oil consumption.
2.) Wrong heat range on the plugs.
3.) Too much initial spark advance.
4.) Lean fuel mixture.
Lean fuel mixture breaks out into several sub categories:
A. Vacuum leaks
B. Air entering the intake without passing through the MAF
C. Failure of the MAF, BAP/MAP (Baro or Manifold Air Pressure, same sensor, different name), ACT (air charge temp), or ECT (engine coolant temp). These should set a code in the computer.
D. Leaking exhaust gases from EGR valve at WOT.
E. Clogged fuel injectors.
F. Fuel injector wiring problems causing injector not to deliver rated flow.
5.) Computer problems: (computer problems are not common like sensor problems)
A. ROM has bad data in fuel or timing table. This should also set a code in the computer.
B. Failure of one or more of the computer's driver transistors for the fuel injectors. No code set on this one.
Have you dumped out the codes?
Here's the link to dump the computer codes with only a jumper wire and the check engine light. I’ve used it for years, and it works great.
See http://www.batauto.com/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/article...c-iv_codes.html
1.) Hot spots in the combustion chamber such as carbon deposits from high mileage or excessive oil consumption.
2.) Wrong heat range on the plugs.
3.) Too much initial spark advance.
4.) Lean fuel mixture.
Lean fuel mixture breaks out into several sub categories:
A. Vacuum leaks
B. Air entering the intake without passing through the MAF
C. Failure of the MAF, BAP/MAP (Baro or Manifold Air Pressure, same sensor, different name), ACT (air charge temp), or ECT (engine coolant temp). These should set a code in the computer.
D. Leaking exhaust gases from EGR valve at WOT.
E. Clogged fuel injectors.
F. Fuel injector wiring problems causing injector not to deliver rated flow.
5.) Computer problems: (computer problems are not common like sensor problems)
A. ROM has bad data in fuel or timing table. This should also set a code in the computer.
B. Failure of one or more of the computer's driver transistors for the fuel injectors. No code set on this one.
Have you dumped out the codes?
Here's the link to dump the computer codes with only a jumper wire and the check engine light. I’ve used it for years, and it works great.
See http://www.batauto.com/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/article...c-iv_codes.html
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