yukondg

Any one have trouble with this?

nuttynotty

Sorry don't have one of them in my Dodge, Had a Ford F350 with a recall on the CPS, lots of fun when that go's south at 55mph with 15K behind you, engine dies... then Arrrr, No brakes, and no steering. and dirty pants..........
Now I have a 95 Dodge, No worries mate

JD730

Sorry to break it to you, but you do have a crankshaft speed sensor on your 95 dodge, 12 valves in a Dodge had a crank speed sensor from late 91 till early 98 when they switched to the 24 valve. It does two things, provides the tachometer signal and lets the computer know the engine is running so it will let the charging system function, AC work, that kind of stuff.


yukondg
We have a bunch of them here, I haven't had any trouble with one yet on 12 valve, but I did have a 24 valve that had one go bad. Does it work, part of the time or doesn't work at all?
Check the gap between the sensor and the crank dampener, make sure the dampener is wobbling and touching (if its doing that its time for a new dampener too) check the wiring coming up, I had the fan belt cut one once, it was my fault, I didn't secure the wire properly.

infidel

There seems to be a lot of confusion on the name.
The part on a 12 valve is actually called the engine speed sensor (ESS).
Many folks call it the crank position sensor (CPS) when it has nothing at all to do with the position of the crank.
The 24 valves use the CPS to electronically vary the timing.

And yes, the ESS does fail but more often it's the connector or wiring causing problems.

nuttynotty

Cheers Infidel for the clarification, yes the ESS becomes intermittent if you don’t clean off the dirt/oil crap from around the connector. This is one of the reasons why I did not get me a 24v and opted for the 12v, I prefer mechanical over the computer controlled. Even though the computer stuff is “better” its bloody expensive to fix.

steveh1155

A new ESS from Cummins is about $70 (mine went bad a couple years ago) and very easy to replace. It's suspect, if the tach, cruise, A/C, Alternator & overdrive all quit at the same time.