[WANTED] PCM For 1991 W250 with 5.2l, 4wd and manual transmission

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deviledchin

deviledchin

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I'm looking for a good, in working condition, PCM for my dad's 1991 W250. I'm hearing it has to be specific for a manual transmissionand 4wd vehicle? I can't confirm if that's true or not and we are researching that now. I'll post part numbers if there's markings on PA. He's having a charging issue and the mechanic is saying it's the PCM?

Thanks, Carl
Sellersville, Pa.
 
I am not sure on that vehicle, but I have bypassed the ecm, and installed a "normal" voltage regulator to cure a no charging problem, on other Mopars .
PS: did not bypass the complete ecm, just the VR circuit.
 
Charrlie_S said:
I am not sure on that vehicle, but I have bypassed the ecm, and installed a "normal" voltage regulator to cure a no charging problem, on other Mopars .
PS: did not bypass the complete ecm, just the VR circuit.
Click to expand...
That's actually what the mechanic was going to do. We just thought it was a temporary fix. Thanks for the information and response.
 
Rug_Trucker said:
Do you have a 91.5? If intercooled that's what you have. One wire alternator with built-in regulator. Also probably controls the a/c too. Go to the cummins forum go to the 1st Gen non power train section.
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Could be 91.5. We've had issues just to get the correct alternator. But I think you are correct.
I'll look into that as well. Thanks
 
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1500swinger said:
I'm pretty sure I have one. Just need to confirm the year, all else the same.
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Ok he's saying it's a 91'. Here are numbers he's giving me.

He claims the numbers are under the sticker by the plug??

The numbers are
0036-01 2550 530-08934

Not sure if this helps, especially if it's a 91.5 model year?

 Carl
 
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