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Engine turns over but will not run

Drove last night went to start this morning and it would not run. Checked fuel pump/injector fuse it is good and has 12 volts on each side if fuse. Replaced fuel pump relay. Still will not run.

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  • Cars & Trucks Master
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Are you getting spark to the plugs ?
Have you sprayed starting fluid into the intake ?

Posted on Dec 11, 2012

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Posted on Jan 02, 2017

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SOURCE: on my 1994 plymouth voyager the 3 wire harness to fuel pump (blue wire) doesn't have 12 volts; should it? fuel pump quit then worked once when hot-wired with 12 volts. fuse and relay is good.

The wire should not be hot until the relay is triggered. The relay does not get triggered until the ignition key is turned on. It will run for 3-5 seconds or until the system pressure it at max.

Posted on Apr 27, 2009

  • 850 Answers

SOURCE: 2000 elantra no power to fuel pump.

could be a bad earth or [ground]
the power wire ma be brocken or have a loose or dirty connection
you neeed to trace it along its lenght to determine the fault!
so start at the pump & work back
Cheers rob

Posted on Jul 20, 2009

  • 159 Answers

SOURCE: 2000 Jeep Grand cherokee Laredo

sounds alot the the pcm it controls the fuel pump and ign system but the anti theft would keep it from starting because the key has a transponder in it programmed for that vehicle and that would kill all ign if triggered

Posted on Sep 27, 2009

arauzvictor1
  • 466 Answers

SOURCE: 1999 GMC Suburban replaced fuel pump but new pump

Ok check if there is voltage on the terminal that connects to the tank inlet usually always have problems with the negative lead so I recommend you check it .... Thanks good luck

Posted on Feb 06, 2010

  • 1 Answer

SOURCE: Where is the fuel pump test connection on a

I had the same problem until I changed the wire harness to the pump. Also the relay under the hood shorts out often and needs to be replaced. Since I did those two things no problems for over a year.

Posted on Jul 03, 2010

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Drove to the store last night had no indications of any problems. Got in it this morning and it cranks over good but will not start? Here's things I have already checked/tested - fuses( coil,ignition, fuel...


If you turn the key from off to run ( do not start ) does the theft light go out ?
How did you check the fuel pump relay ? My 2001 at ~ 35K miles the fuel pump relay went out, I checked it by swapping the trailer tow adapter reverse lamp relay into the place of the fuel pump relay.
The thing I am drawing a blank on, and you seem to confirm what I think, is the fuel pump relay is removable in the '02. Must be the '03 when the fuel pump relay became integrated into the fuel panel ( non serviceable ).

If you jumper the fuel pump relay, does it turn on ( red line in picture below )
sscullys_122.jpg

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1 Answer

On hot days when I stop for gas, I shut the car


Fuel pump worn out and is weak, when the fuel is warm the pump expands and the fuel pressure is good. When the colder gas is added or when the gas has cooled down the fuel pump.
The pump can not create enough pressure to run the fuel injector due to the piston and sleeve in the pump are worn out, you might get another year if you lucky by replacing your fuel filer.
Start with the simple and replace your fuel filter and check your fuel pressure readings at the shredder valve on your fuel injector rails. You should have i think 56 PSI to run them properly.
Thank you for using fixya and be safe.

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1 Answer

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