1993 Cadillac Deville fuel pump or relay

Tiny
PANDLMCDANIEL
  • MEMBER
  • 1993 CADILLAC DEVILLE
Engine Mechanical problem
1993 Cadillac Deville V8 Front Wheel Drive Automatic

Car just died and now will not start. Will crank over but now fire. Pulled the fuel line to make sure getting fuel but only get pressure for 2 seconds then no fuel. Would this be the pump or maybe the relay? Thanks for the help
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Wednesday, December 9th, 2009 AT 6:01 PM

3 Replies

Tiny
RASMATAZ
  • MEMBER
It suppose to prime the engine for 2 secs-check the fuel pressure with a gauge and comeback with the readings
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Wednesday, December 9th, 2009 AT 6:06 PM
Tiny
PANDLMCDANIEL
  • MEMBER
I am getting good pressure for the 2 seconds 44# but no fuel after the frist brust of fuel.
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Wednesday, December 9th, 2009 AT 6:22 PM
Tiny
FACTORYJACK
  • EXPERT
That is normal to build rail pressure, if there is no continuing rpm signal the pump is shut down. You have only checked one avenue. You need to check spark, and if you have spark, check that the injectors are firing.
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Thursday, December 10th, 2009 AT 9:52 PM

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