Truck runs fine one minute the next its chugging and jerking. I can hear misfire during these episodes. Started doing this about a month ago,only when accelerator was past 1/3rd petal. Progresivley got worse, now it does it at all speeds and throttle positions. Engine reves at idle, only sometimes. Replaced distribritor, cap and rotor; did not help. She runs great one minute then this stuff the next. Im lost, any ideas?
The first thing that needs to be done here is to have the engine control module scanned for fault codes, based on the results then move on.
SOURCE: Shakes while idling and sometimes stalls.
check for minor vacuum leak and map sensor,pcv,egr valve
SOURCE: The truck is reving to 1500-5000 rpms throttle is wide open
it could possibly be a bad throttle position sensor
SOURCE: im not getting any power
transmission slipping check fluid may save it if you catch it soon enough?if it is just low?if not then it is bad smell see if fluid smells burnt and is brownish bad sign.
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