Looking for a 1993 PCM

[Highfinance97]

Im looking for a PCM for my 93 if anyone has any off a parts trucks or where is a good place to get them.

My cost from the dealer is $201. 00, how good of a price is that for a rebuilt one??

I know i need the specific PCM for the truck so the part # is R4746568



Thanks,

Michael

 

[Highfinance97]

Sorry i just noticed i put this in the wrong spot LOL please move this thread



Michael

 

[Makaio]

Michael,



I think $210. 00 is not too shabby at all. I paid about $240 that included shipping and it's a factory rebuilt unit. I got a quote from a specialty electrical shop and they told me $400. 00 to remove mine and rebuild it to specs; they misinformed me that it was no longer available from the factory and having a shop rebuild it was the only option I had.

 

[Highfinance97]

thank you very much i am just going to order one



michael

 

[BushWakr - RIP]

:-laf :-laf... . Ask and Ye shall receive... ... moved here for better/correct forum/exposure... .



pb. .

 

[mysteryman]

Buy it and save your core for later use ! the cores are going away fast

Im looking for a PCM for my 93 if anyone has any off a parts trucks or where is a good place to get them.

My cost from the dealer is $201. 00, how good of a price is that for a rebuilt one??

I know i need the specific PCM for the truck so the part # is R4746568



Thanks,

Michael

 

[Highfinance97]

Buy it and save your core for later use ! the cores are going away fast

what do you mean there going away fast?? why should i save it?



Michael

 

[DSteimle]

OK, checked dealer connect and plenty still available. your dealer's paying 165. 00 (dont tell him i told you ). curious though, what happened to yours. mine had the voltage regulator go bad, but now my charging system is a 90 model

 

[DTroy]

DS, the truck wasn't charging the battery. And the alternator tested good.

 

[Tumbler]

I'm having the same problem with my 92. So the voltage regulator is built into the PCM on 92s and replacement is the only option? Any reason why the voltage regulator gets fried? (Just so I can avoid this problem in the future. ) I'm not sure what the history of the truck is. I've only had it since March. I assume it had to do with something I did because it was charging fine until a couple weeks ago.



Why are there exterior voltage regulators sold for the 92?

Bought the a voltage regulator from Napa for the 92 dodge cummins. Assumed that there would be one on the engine. Couldn't find one.



Can anyone confirm this statement?



"A bad crankshaft position sensor will also cause your voltage regulator to not charge the altenator. "



http://www.dieseltruckresource.com/faq/faq.php?display=faq&nr=161&catnr=20&prog=1&lang=en

 

[DTroy]

Tumbler, I guess an update is in order.



A computer was purchased. It didn't solve the problem. It was returned.



I believe a corroded or faulty wire/connection was the culprit. I'll find out for sure though.

 

[bgilbert]

I'm having the same problem with my 92. So the voltage regulator is built into the PCM on 92s and replacement is the only option? Any reason why the voltage regulator gets fried? (Just so I can avoid this problem in the future. ) I'm not sure what the history of the truck is. I've only had it since March. I assume it had to do with something I did because it was charging fine until a couple weeks ago.



Why are there exterior voltage regulators sold for the 92?

Bought the a voltage regulator from Napa for the 92 dodge cummins. Assumed that there would be one on the engine. Couldn't find one.



Can anyone confirm this statement?



"A bad crankshaft position sensor will also cause your voltage regulator to not charge the altenator. "



http://www.dieseltruckresource.com/faq/faq.php?display=faq&nr=161&catnr=20&prog=1&lang=en

I thought the voltage regulator was built into the alternator on 92,93's? Either way, bad crankshaft position sensor tells PCM the engine is not running, do not charge alternator.

 

[Moab4x4]

Regulator is integral with the PCM. The PCM actually controls the ASD relay that powers the alternator windings. Crank position sensor can cause PCM to think that engine is not running and not enable charging. If the ASD relay on the inner fender is bad that also will cause a no charge situation. I replaced the charging function of the PCM with the old style regulator. Local parts house had a pigtail with the proper Mopar regulator plug. You can wire it like any old Mopar (I used my 70's manual for wiring help) and it works like a charm.

Ken