20 Most Recent 1992 Cadillac DeVille Questions & Answers

is the fan motor working at full speed
check for blocked cabin air filter
the vacuum only works the vent controls and as you can feel the changes of the vents , it is not vacuum

1992 Cadillac... | Answered on Feb 24, 2018

Sounds like you have a either a vacuum leak or a cracked fuel line allowing extra air to be sucked into the carb fuel mixture. Make sure all small to medium sized hoses are well attached to their fittings and do not have any cracks in them.

1992 Cadillac... | Answered on Nov 03, 2017

Jumper 12 volts to the blower motor and see if it runs, it may be a defective motor.

1992 Cadillac... | Answered on Oct 06, 2017

Hey Alonzo,
Sorry to hear this.. I hate when people butcher a NICE vehicle.. I would take it to a local alternator/starter/battery specialty shop.. they will know right away what wire goes where!!

If you want to fix this yourself... here are some manuals..

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1992 Cadillac... | Answered on Sep 12, 2017

The conector for the a/c compressor comes with a diode that keeps power from returning after the compressor cycles off. Check or replace the connector/and or diode and see if that fixes the problem

1992 Cadillac... | Answered on Aug 12, 2017

Next time you have the problem check the fuel pressure, bet you have none. The fuel pump is electric and located in the fuel tank. These fuel pumps last on average about 100,000 miles, less if you run the tank lower than 1/8 due to the overheating it causes the fuel pump due to the loss of lubrication and cooling from the fuel it sits in.

1992 Cadillac... | Answered on Jun 15, 2017

this is a question?

1992 Cadillac... | Answered on Apr 08, 2017

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