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94 Cadillac Turns Over but wont start
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MrMustang93
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Feb 20, 2011, 7:49 PM
Post #1 of 8
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94 Cadillac Turns Over but wont start
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Im trying to help my grandfarther sell his cadillac its a 1994 Cadillac Fleetwood Brougham 5.7L 170k Miles. Its been sitting up at least a year. It wasn't nothing wrong with it when he parked it he just bought a new car and parked this one. so now were having a hard time starting it. We've replaced the Fuel Pump Relay and Fuel Filter and it still wont start. The car will crank and run if you spray starter fluid in the intake. If you do that it will crank right up on the first turn and will run until the starter fluid runs out and once it runs out it just turns over. We thinking it might be the fuel pump but i was wondering if there are other things we can diagnosis before we go dropping the tank. any help is greatly appreciated, Thanks
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 20, 2011, 8:03 PM
Post #2 of 8
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Re: 94 Cadillac Turns Over but wont start
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You may have a bad fuel pump but you need to verify power and ground arriving at it first while monitoring a fuel pressure gauge.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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MrMustang93
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Feb 20, 2011, 8:22 PM
Post #3 of 8
(8012 views)
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Re: 94 Cadillac Turns Over but wont start
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how do I check to see if the power and ground is good?
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 20, 2011, 8:37 PM
Post #4 of 8
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Re: 94 Cadillac Turns Over but wont start
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Use a test light at the tank with a helper to operate the key.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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MrMustang93
User
Feb 20, 2011, 8:38 PM
Post #5 of 8
(8001 views)
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Re: 94 Cadillac Turns Over but wont start
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there is some wires that coming from the top of the tank. the wires from the tank has a male plug type thing on it and the other has a female type plug on it. I unplugged and I was wondering if I took a test light and stuck it in the female plug will that tell me if im getting power or not?? I can't tell if the wires are actually coming from the pump itself unless I drop the tank but it looks like tey are
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autojoe
User
Feb 21, 2011, 7:07 AM
Post #6 of 8
(7990 views)
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Re: 94 Cadillac Turns Over but wont start
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leave connector connected and hook test light to a good ground......i run a jumper from negative battery terminal then touch test light to positive battery terminal to test and light should light.....now pierce the gray wire or unplug connector and touch the terminal where the gray wire goes and turn key to on position the test light should light for 2 seconds and then go out the have soneone crank engine and test light should light while cranking.
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MrMustang93
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Feb 21, 2011, 6:43 PM
Post #7 of 8
(7980 views)
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Re: 94 Cadillac Turns Over but wont start
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Thanks for all the help guys I know alot of people don't get back on here and say if your suggestions is what fixed the problem so I thought I would. It turned out to be the fuel pump, I took the test light and touch one of the wires I forgot which one and it lit up I went and bought a new pump spent all day puttin it in and just cranked it for the first time about 15 mins ago and it started and ran on the 2nd attempt. I sit there and let it run for about 10 mins so everything seems to be fine. Thanks again.
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 21, 2011, 6:45 PM
Post #8 of 8
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Re: 94 Cadillac Turns Over but wont start
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Thanks for the feedback.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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