Engine wouldn't start

Tiny
VINCE LETTAU
  • MEMBER
  • 1993 CADILLAC FLEETWOOD
  • 18,600 MILES
I have a 93 Cadillac Fleetwood 5.7l drove the car to six stores the last one wouldn't start how do you tell if it is the fuel pump? Turns over good just not stating, half a tank of gas.
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Wednesday, February 29th, 2012 AT 9:38 PM

8 Replies

Tiny
CADIEMAN
  • MEMBER
Check the spark. Does it start if you spray the intake?
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Wednesday, February 29th, 2012 AT 9:56 PM
Tiny
VINCE LETTAU
  • MEMBER
Yes it did fire when I used starting fluid. So if my 93 Cadillac fires when I us starting fluid does that mean its the pump?
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Wednesday, February 29th, 2012 AT 10:02 PM
Tiny
CADIEMAN
  • MEMBER
It sure sounds like the pump has gone out which is common on these cars. Here is a guide that will give you an idea of what you are in for when doing the job.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

Please let us know what happens.

Cheers
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Thursday, March 1st, 2012 AT 10:04 PM
Tiny
VINCE LETTAU
  • MEMBER
I can hear the pump cycle, builds pressure and shuts off. Fuse checked out to be good. I could feel and here the relay click. This fuse box is under the hood on the passenger side. Still wont start. Charging battery, the going to try putting some gas straight into the carb. Any more ideas?
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Friday, March 2nd, 2012 AT 1:13 AM
Tiny
VINCE LETTAU
  • MEMBER
Cadieman. I went backout to the garage after you replied on your last answer, so idecided to take the gas lines off the back of the carburetor, both of them, then turn the car over and no gas came out. So does this mean the pump is bad? (Even thow I can hear the pump)vince
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Friday, March 2nd, 2012 AT 2:49 AM
Tiny
CADIEMAN
  • MEMBER
It runs when u spray it thats fuel. Your going to have to replace the fuel pump and hoses to the sending unit. You can check for pump voltage to the pump at the connecter in the rear. Use a test light or meter
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Friday, March 2nd, 2012 AT 6:14 PM
Tiny
VINCE LETTAU
  • MEMBER
I dropped the gas tank on the 1993 cad. I installed a new pump I figured it was weak and when I put the car back together it started YA.
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Sunday, March 4th, 2012 AT 12:29 AM
Tiny
CADIEMAN
  • MEMBER
If you can hear the fuel pump run it can still be weak good job on replacing it.

Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help

Cheers
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Sunday, March 4th, 2012 AT 10:46 PM

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