Strange electrical problem (needs wiring diagram)

[Fred_M1010]

Does anyone know where to find a wiring diagram online?
Or if not, where to buy one (I guess Chilton and Haynes is out of the question )

Or maybe someone recognizes my problem...?

Sometimes my temp gauge starts to strike back and forth.
At the same time my overdrive disengages (like if I switch off the overdrive switch), and my stereo dies

[Fred_M1010]

It's a -92 W250 auto btw.

[Richie O]

Your going to need a Factory Service Manual. You can get them at Genos.

http://www.genosgarage.com/prodinfo.asp ... SM92_PRINT

[delinquent]

My truck does the exact same thing. My Wait to start light flashes and my OD disengages, along with the guages twitching. I have looked everywhere and added 3 extra grounds, and no luck. When you figure yours out, help me!

[greaseyote]

Ahh the joys of intermittent connections...

This is just an educated guess but I would start at the fuse box. In the 1st gens. IIRC there are 3 leads that come into it and all the fused circuits come off of those. It sounds to me like one of those 3 connections is not making contact 100% of the time.

[Philip]

http://www.cumminsforum.com/forum/89-93 ... atics.html

[Fred_M1010]

Ahh the joys of intermittent connections...

This is just an educated guess but I would start at the fuse box. In the 1st gens. IIRC there are 3 leads that come into it and all the fused circuits come off of those. It sounds to me like one of those 3 connections is not making contact 100% of the time.

Thanks, I think you're right.
It stopped when I jiggled the fuse box some
Now I just have to find out which lead it is, so I can fix it properly

http://www.cumminsforum.com/forum/89-93-tech-articles/312224-electrical-schematics.html

Thanks, but I can't make out much of these diagrams.
The resolution is too low, I can't make out the text

[Fred_M1010]

I've found the problem now
It was a poorly grounded core support

[Fred_M1010]

And now I've found the wiring diagrams as well.
They where right here on the forum, I just had to search.
viewtopic.php?f=30&t=796

Direct-link:
http://dens-site.net/Dodge_CTD/1991.5-Wiring_Diagrams/