2 different mechanics checked this car completly, and both have no idea, the o2 sensor on bank is abit weak, but they claim nothing to worry about, exhaust was removed from cats back, still popped, removed cats, still popped, scan comes back clean, with exception of heat temp sensor bad, changed it, put new thermastat in, same thing, still pops, they thought maybe exhaust gases were igniting in the chamber, causing the pop, but they are positive this isnt the case anymore, they both think maybe a sticky valve, but with no oil loss, and no smoke, they are not sure, they think a weak spring, but both agree a spring being weak, wopuld not cause it, they are stumped, an it was 2 different ford dealers, do you have any idea or can you point me in a direction, as I dont want to start hauling the engine apart if I dont have too
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Thursday, April 16th, 2009 AT 4:16 PM
