Question about 1992 Cadillac DeVille

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When I first start my car it runs great, but after warming up for eight to ten minutes, or drive on the highway I cant use the peddle more than half way without it boging, floating, and then diying until it sits and cools for awile.

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This sounds like a weak fuelpump, i would start by having the fuel pressure testing, this sounds like theres not enough fuel getting to the motor, so start with the fuel pressure test, hope this helps.

Posted on Nov 08, 2010

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