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1991 DeVille bog down and Stalls


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Check for codes

Check fuel pressure

When was tune up done?

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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It could also be the TPS, it is my understanding that the TPS can create symptoms similar to a bad accelerator pump on a carburator.

But we need codes,

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Fuel Filter, Fuel Pressure Regulator, or in tank fuel filter if present, check in that order. Cam position sensors, if used on that model/year usually go out without the bogging down.

Never underestimate the amount of a persons greed.

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Cam position sensors, if used on that model/year usually go out without the bogging down.

I meant crankshaft position sensors....

Never underestimate the amount of a persons greed.

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