Question about 2005 Cadillac Deville

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Does the 2005 cadillac deville turn off the fuel pump switch after an accident, like a blown out tire

The car cranks but does not strat . I had a tire blow out. Does the fule pump switch get turned off , it caused damage to the back bumper and etc.

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  • 194 Answers

No shutoffs occur on GM products from any form of rear end damage. Only loss of oil pressure causes computer fuel pump shutdown (Engine stalls or tries to run upside down when no oil is in the pan).
Now it IS possible that the chunks of tire flew around the frame area near the tank and damaged fuel pump wiring, or also that the pump just failed (GM pumps...fail pretty often).

If you have no flashing security/key lamp on the dash, and gas in the tank (Certain?), and it cranks but doesnt start...you really need someone qualified to tell you if it is getting adequate pressure or not,
You need a scanner, and maybe a multimeter or at least a test light...some way to know is the computer trying to turn the pump on, and a way to measure if the pump is trying, and is it making enough pressure? There are 50 obvious things that make a car not start. Fuel pump is only one of them. a DIagnostic scantool can help a technician rule out 30 more in a matter of minutes...the last few, with some other tests and tools.. Id love to offer you guess work and MacGuyver answers...but frankly they dont always work.

Posted on Jan 05, 2015

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SOURCE: need to replace turn signal switch 93 cadillac deville

First do you have a sterring wheel puller. Can't remove the steering wheel without one. Quite an involved job including snaking the electrical connector end through the steering column. I wouldn't recommend it to the novice

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SOURCE: fuel pump relay keeps blowing on my 1996 Cadillac STS, why?

replace fuel pump wires.they could be shorting out pump relay.

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SOURCE: MY 1999 CADILLAC DEVILLE CAR

More likely it is the spark plugs and the engine is mis-firing... take them out and check them

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SOURCE: 1999 Cadillac Deville- Won't start!

First, obviously, put gas back in the tank.

Check the fuel pump fuse, (20 amp yellow fuse in the lower left corner of the group). If that is not blown, turn the key on and pound hard on the bottom of the fuel tank. The fuel lubricates the fuel pump, once it runs dry, the pump can lock up. Once the pump is immersed in fuel again, a sharp jolt will unstick it and let it pump up to pressure again. If it locks up for too long, the pump will burn out and need replaced.

We found this out by accident, got mad and pounded on the bottom of the tank and the pump jumped to life.

Posted on Aug 22, 2009

  • 1 Answer

SOURCE: 2001 Cadillac Deville problems starting

I have had the same problem and I have come to the conclusion it is the security system. After 3 minutes the car will start so there is nothing wrong with the battery or starter. I have had it to the dealer a few times and they cannot solve it. It may be the locks on the doors and they may not be resetting properly. I have learned to live with it.

Posted on Oct 14, 2009

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1 Answer

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First, obviously, put gas back in the tank.

Check the fuel pump fuse, (20 amp yellow fuse in the lower left corner of the group). If that is not blown, turn the key on and pound hard on the bottom of the fuel tank. The fuel lubricates the fuel pump, once it runs dry, the pump can lock up. Once the pump is immersed in fuel again, a sharp jolt will unstick it and let it pump up to pressure again. If it locks up for too long, the pump will burn out and need replaced.

We found this out by accident, got mad and pounded on the bottom of the tank and the pump jumped to life.

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