Hi all,
I have a 2003 GMC Sonoma 4.3L that I recently took to a local dealer for a lower intake manifold gasket job. While it was torn down, they suggested a distributor cap/rotor button replacement, which I OK'd. After getting it back it began misfiring above 3000RPM and throwing a P0335 code.
I took it back to the dealer and they said the crank sensor needed replaced. After replacing the CKP, it ran OK for a day or two, then the same problem returned. They just replaced the new sensor under warranty, claiming it was a bad sensor, and I'm right back in the same situation again - misfiring above 3000RPM.
My gut keeps telling me something went wrong when the distributor was reinstalled during the LIM job, since the truck ran perfectly before I took it in. My gut also tells me they're going to try selling me on replacing the PCM next.
Any ideas on what I'm ACTUALLY dealing with here?
I have a 2003 GMC Sonoma 4.3L that I recently took to a local dealer for a lower intake manifold gasket job. While it was torn down, they suggested a distributor cap/rotor button replacement, which I OK'd. After getting it back it began misfiring above 3000RPM and throwing a P0335 code.
I took it back to the dealer and they said the crank sensor needed replaced. After replacing the CKP, it ran OK for a day or two, then the same problem returned. They just replaced the new sensor under warranty, claiming it was a bad sensor, and I'm right back in the same situation again - misfiring above 3000RPM.
My gut keeps telling me something went wrong when the distributor was reinstalled during the LIM job, since the truck ran perfectly before I took it in. My gut also tells me they're going to try selling me on replacing the PCM next.
Any ideas on what I'm ACTUALLY dealing with here?