1994 B350 5.9L V8, runs rough and pops

[alloro]

Originally Posted by bigj-dog

As soon as the temp starts to climb, it pops out the exhaust and lopes very badly at idle.

hundreds of new sensors.

Does that include a new 2-wire coolant temperature sensor? (Not the 1-wire one for the gauge.)

[bigj-dog]

Yep, that's the temp sensor we replaced, with no change. Does anyone have the Mopar instructions for timing the distributor? The instructions i have say to position the distributor as close to the switching point as possible, but if you are turning the dist., it switches from 0 to 5v at one point, then if you turn it back the other way, it switches from 5v to 0 at a different point. I set it exactly in the middle of the 2 switching points. Is that correct?

[hundahunta]

try block off the egr. if you thinks it's timing just start the vehicle loosen the bolt a little and turn it slowy until it runs fine, what does the plugs look like

[hundahunta]

what happened to the code 27 have you checked that. have you also checked for a plenum manifold vacuum leak??

[bigj-dog]

Brought the mt2500 back out and found that the crank sensor was bad. Changed it out and it's back to good. Looked it it first, but you could tell that it had been out of there and the owner said it had been replaced. Too bad it didn't show up earlier, woulda saved a lot of dickin' around. thanks for all the help everybody.

[alloro]

Originally Posted by bigj-dog

found that the crank sensor was bad.

One thing that irritates me about OBD-II is that there is no crank sensor checking or trouble code. That's a major oversight IMO.

[sanramonfamer]

I have 1993 B350 5.9L V8 360 engine. From time to time the engine stalled while driving, other times the engine just won't start. The battery is charged, and it cranks but won't fire up. Sometimes I need to jump start from another fully charged car. CEL showed error code 27. Cleaned IAD, tested sparks, fuel pressure test showed good PSI reading. Finally, I replaced the crankshaft position sensor, it is fixed.