so im working on an 03 tb with the 4.2, and this thing has got me stumped.
very rough idle, stalls, no power, will not accelerate at all. pulled codes, got p1345 along with a random and a cyl3 misfire.
changed plugs, pulled out acdelcos, unknown if they were original or not, but #3 was covered in oil, from the threads to the electrode. replaced with double plat ngks
replaced plugs, cleared codes, tried again.
same thing. misfires like crazy, no power, rough idle, stalls etc.
pulled codes and #3 misfire went away, but random miss and p1345 still there.
next step changed out cam and crank sensors, along with cleaning throttle body, oil change, and an air filter. left battery unhooked after cleaning tb to reset memory, got it all back together again and now NO START. occasionally i will get a puff out of the intake when it stops cranking, but thats it. Random misfire code still there, nothing else.
Any ideas?
EDIT#1 My best guess, and thats all it is at this point, is either fuel pump/filter, or possibly it jumped a tooth on the chain? anyone got odd on one or the other, or something completely different?
very rough idle, stalls, no power, will not accelerate at all. pulled codes, got p1345 along with a random and a cyl3 misfire.
changed plugs, pulled out acdelcos, unknown if they were original or not, but #3 was covered in oil, from the threads to the electrode. replaced with double plat ngks
replaced plugs, cleared codes, tried again.
same thing. misfires like crazy, no power, rough idle, stalls etc.
pulled codes and #3 misfire went away, but random miss and p1345 still there.
next step changed out cam and crank sensors, along with cleaning throttle body, oil change, and an air filter. left battery unhooked after cleaning tb to reset memory, got it all back together again and now NO START. occasionally i will get a puff out of the intake when it stops cranking, but thats it. Random misfire code still there, nothing else.
Any ideas?
EDIT#1 My best guess, and thats all it is at this point, is either fuel pump/filter, or possibly it jumped a tooth on the chain? anyone got odd on one or the other, or something completely different?