I just bought a used 05 Tacoma with a cyl4 misfire
I just bought an 05 double cab tacoma with the v6 and when i test drove it the check engine light was on asked the dealership about it they didnt know anything about it and it was a sunday so service wasent there but it was a mazda dealership. We bought the extra warranty on it so anything should be covered. Bought the truck got it home took it to autozone they checked the code and it was cyl 4 misfire
so the obvious things came to mind plug, wire, coil etc. checked the car fax and low and behold right before we bought the truck about 2 weeks before they replaced the head gaskets and plugs new serpentine belt radiator flush. So tonight after almost a week of driving the check engine light is now off. But when I looked under the hood and checked the exhaust manifold header bolts, they are as rusted as a 2 dollar hooker. No way did they take them off to replace the head gaskets unless there is a way to leave the header on and pull the head off. but now the check engine light is off not sure if maybe the computer finally corrected itself or what but now im wondering what i got myself into $17000 hot mess.. any suggestions or ideas about why the check engine light would go off if it was still having an issue?