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If I'm not mistaken, GM has had the voltage regulator internal to the alternator for years before '93.
The alternator has to be disassembled to repair the voltage regulator. Most do-it-yourselfers just replace the alternator.
Here's a picture that shows the regulator at RockAuto -
Over the last 20 years ... cars have has a LIMITED OPERATION FEATURE added... When the engine READS something that is not IMMEDIATELY catastrophic... it will allow you to
LIMP home... rather than a complete shut down.
Limp mode:
You SHOULD also have a CHECK ENGINE light... (?)
My best advice is to limp on down to your near-by FREE code reading shop... and have a READER tell you what CODES are registered...
A blocked exhaust system will also seriously SLOW your progress
((soon to stop all-together)).
Hook it up to a code reader via OBDII for specifics. Tecnically, there is no reason to flash your ECM unless you are using another ECM from a parts car...for say a 1989 Chevy. This ECM was used on the 1989 S-10 truck with the 2.5L four cylinder, the ’89 Camaro with the 5.0L HO V8 and the ’89 Corvette with the 5.7L Tuned-Port V8 engine. The only difference (aside from the vehicle wiring harness pin population) was the PROM. The PROM contains the calibration software for the ECM. Another reason would be to bypass a security locked ECM like a 2001 Pontiac GT which was notorious for shutting off the fuel pump if the security chip in the key lost connection through switched power.
Chris, Check the attached links,instruction, diagrams and guides for your caddies cooling system. Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." 1992 Cadillac Eldorado 4 9l cooling system diagram Google Search
? 9:26 www.youtube.com/watch?v=eo6VW-wtGus Aug 27, 2012 - Uploaded by RatchetsAnd Wrenches
My Dodge Ram 1500 with a 5.9L engine had an over heatingissue which I was able to narrow down to the ...
Engine Control Module (ECM) (LD8/L37)
Front left side of the engine compartment, inside the air cleaner housing.
Transmission Control Module (TCM) (LD8/L37)
At the left rear of the engine compartment, on the strut tower
They call it a PCM when TCM an ECM are all in one module. You have ECM an TCM
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