Stahl at high rpms when driving ?
When I floor it driving like to pass on a highway for say the truck cuts out and the check engine flashes . Only at high rpms but Its not making it to the redline ? 2001 ram 4x4 318
Flashing CEL indicates misfire. Misfire under load indicates a either weak ignition, or, incorrect mixture...... If your plenum hasn't been fixed yet, this IS one of the symptoms of it being blown. Of course, just about any vacuum leak would cause the same problem....
So, start by looking at the easy stuff. Plugs/wires/cap/rotor. (yeah, the cap/rotor can indeed be a pain.)
Check the plenum. (see stickied thread at top of this forum.)
Go from there.
So, start by looking at the easy stuff. Plugs/wires/cap/rotor. (yeah, the cap/rotor can indeed be a pain.)
Check the plenum. (see stickied thread at top of this forum.)
Go from there.
Nope. although, the engine running stupid DOES make the trans feel stupid. 
Cam or crank sensor could give you a miss. I would lean more toward crank sensor though, as the cam sensor only tells the PCM what cylinder is where once per crank revolution. It's a simply hall effect switch, on for four cylinders, off for four cylinders. Clues the PCM which cylinder is *next* (1 or 6) by the switch changing state. If it was going bad, the engine would run REALLY stupid.

Cam or crank sensor could give you a miss. I would lean more toward crank sensor though, as the cam sensor only tells the PCM what cylinder is where once per crank revolution. It's a simply hall effect switch, on for four cylinders, off for four cylinders. Clues the PCM which cylinder is *next* (1 or 6) by the switch changing state. If it was going bad, the engine would run REALLY stupid.







