Hello!
I just recently bought a 5-speed, 1994 Ford Mustang GT that I found in great condition. It has 120K miles and is 100% stock. The only problem I noticed was that it was pinging under acceleration when I test drove it. I thought that maybe the owner (an older woman) was using regular unleaded gas or it just needed a tune-up. Immediately after buying it, I took it to a local Mustang shop. They performed a tune up, replacing the spark plugs, spark plug wires, distributor cap and rotor with all Ford Racing parts.
Unfortunately, the car still pings, even though I use super-unleaded (91 Octane in Southern California) and have tried different gas stations. If it is cold, it won’t ping until about 3200 RPM’s. If it’s a warm day, or if the car has been in traffic, or if the A/C is on, it constantly pings starting at about 2400RPM, under acceleration.
The local mustang shop is saying my catalytic converters may be to blame because they are original and may be getting “plugged up” so they suggest getting an after-market exhaust with new catalytic converters. I plan to replace the exhaust in the future, but don’t want to do it before I have done some research and found the headers and exhaust set-up that I want. In the meantime, could the pinging be something else?
I saw the post about trying Autolite 24's gapped @ .060-.061 and I will check into that, but any other hints would be appreciated.
Thanks for the help!
I just recently bought a 5-speed, 1994 Ford Mustang GT that I found in great condition. It has 120K miles and is 100% stock. The only problem I noticed was that it was pinging under acceleration when I test drove it. I thought that maybe the owner (an older woman) was using regular unleaded gas or it just needed a tune-up. Immediately after buying it, I took it to a local Mustang shop. They performed a tune up, replacing the spark plugs, spark plug wires, distributor cap and rotor with all Ford Racing parts.
Unfortunately, the car still pings, even though I use super-unleaded (91 Octane in Southern California) and have tried different gas stations. If it is cold, it won’t ping until about 3200 RPM’s. If it’s a warm day, or if the car has been in traffic, or if the A/C is on, it constantly pings starting at about 2400RPM, under acceleration.
The local mustang shop is saying my catalytic converters may be to blame because they are original and may be getting “plugged up” so they suggest getting an after-market exhaust with new catalytic converters. I plan to replace the exhaust in the future, but don’t want to do it before I have done some research and found the headers and exhaust set-up that I want. In the meantime, could the pinging be something else?
I saw the post about trying Autolite 24's gapped @ .060-.061 and I will check into that, but any other hints would be appreciated.
Thanks for the help!