I have a 2002 Mustang GT 4.6L. For the last month or soo i have been trying to figure out this bad pinging problem i have. The car pings (Spark Knock) when under half throttle, and it's pretty bad.
I bought an SCT tuner from American Muscle and have been using Bama Performance Tunes. Every one of the tunes pings no matter what octane gas is in the car. I have tried using 93 Sunoco Octane on an 87 tune and the pinging continues.
As soon as the car is returned to stock the pinging goes completely away. I emailed Bama and requested new tunes in which they could retard the timing and that didnt work.
I changed the fuel filter and ran a can of seafoam through the car and neither really helped.
The only thing that i feel may be causing the problem is that i have a coolant leak from a blown gasket. I continually add coolant so that is not a problem and i plan on getting the leak fixed sometime soon. But can a leak cause this much pinging?
Also i added a bottle of Octane booster and that completely resolved the issue. But i don't want to have to add a bottle of OB everytime i get gas. So in other words something is causing my gas to lose octane. I have tried every brand of gas out there.
If anyone has any ideas help is much needed. Thanks.
I bought an SCT tuner from American Muscle and have been using Bama Performance Tunes. Every one of the tunes pings no matter what octane gas is in the car. I have tried using 93 Sunoco Octane on an 87 tune and the pinging continues.
As soon as the car is returned to stock the pinging goes completely away. I emailed Bama and requested new tunes in which they could retard the timing and that didnt work.
I changed the fuel filter and ran a can of seafoam through the car and neither really helped.
The only thing that i feel may be causing the problem is that i have a coolant leak from a blown gasket. I continually add coolant so that is not a problem and i plan on getting the leak fixed sometime soon. But can a leak cause this much pinging?
Also i added a bottle of Octane booster and that completely resolved the issue. But i don't want to have to add a bottle of OB everytime i get gas. So in other words something is causing my gas to lose octane. I have tried every brand of gas out there.
If anyone has any ideas help is much needed. Thanks.