Hi everybody. I've got a 73 4dr with the 302 V8. There is a popping noise coming from the engine bay that I cannot identify. I retuned the carb and reset the timing 6 deegrees before TDC but the popping noise is still there. It seems to get worse when I am in drive or reverse and when I let off the accelerator pedal. I checked the spark plug wires and cleaned the distributor cap and rotor, but the popping is still there. I just can't tell where it's coming from. Any ideas and ways to fix it? There is also some hesitation when I start moving from a stop. Any and all help would be greatly appreciated. Jonathan Oh, and there is also a miss under light acceleration. With the gas pedal slightly depressed. The car will pull then not, then pull then not. Could this be fuel related?
How would I check for that? I'm having the exhaust system from the behind the manifolds back replaced in 2 weeks, but I wasn't planning on replacing the manifolds. Should they be replaced as well? Jonathan
If it is the exhaust manifold gasket(s), you don't need to replace the entire manifolds, just the gaskets.