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I have a 1987 Plymouth Voyager that starts, fuel pump comes on but it just runs a few seconds and stops. If you turn the key off and back on, the fuel pump comes back on but shuts back off in a few se

The engine start, runs fie for a few seconds and shuts off.You can turn the dey off and start it again and it does the same thing. It is running out of fuel. Do you think it is the fuel pump? We just changed the motor (3 liter) We did not have this problem before.

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  • Cars & Trucks Master
  • 22,156 Answers

On the fuel rail will be a small round valve type thing with a rubber vacumn tube running to it ,check the tube and make sure its connected as this will stop it from running as it opens the fuel rail for the injectors

Posted on Jan 03, 2013

  • Don McGlothlin Jan 03, 2013

    If you are talking about the vacumn line that hooks into the vacumn chamber on the fuel rail, it is connected.

  • Colin Stickland
    Colin Stickland Jan 04, 2013

    right now make sure it works and you have a vacumn to it ,take the pipe off and put another bit of pipe on and **** on the pipe to see if you hold a vacumn with your ****** on the end ,if ok then start engine and make sure that you have a vacumn at the pipe ,just because it looks ok and its connected assume its working

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SOURCE: chrysler voyager 2.5td se 97

sounds like the catalytic converter is plugged up

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SOURCE: 91 honda civic dx 1.5L quit running properly.

bro, check ur main relay. its under the dash. replace it, check also ur distributor(replace it). and also your ECU

Posted on Feb 22, 2009

Testimonial: "right answer but I received it much too late. I went to a mechanic and paid him to fix it."

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SOURCE: 2000 blazer 4.3 hard to start (fuel problem)

Do you have the fuel tester hooked the in the overgrown air valve on the fuel rail in the back of the engine? Or do you have the fuel line unhooked in the back and hooked to the pressure pump? You want the fuel pressure to be in that 60 lb range so if you are hooked into the pressure valve on the fuel rail allowing fuel to go through, then I am betting it is the fuel pressure regulator. To get to that, you have to take the throttle body off and take the plastic plenum that covers the injector packs. On the back of the mount where your six pack of injectors are sits the pressure regulator. If it is faulty then it is dumping fuel instead of holding the pressure like it should.
Get a Chilton or Clymer manual and it shows you in pretty good detail how to fix it. I've done it to my 98 S10 with the same engine.

If you unhooked the fuel line so you are losing pressure from the line back to the pump then I would say your pump is letting fuel back to the tank when it shuts off. My money is on the first possibility though.

Good luck

Posted on Mar 28, 2009

polarcycle
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SOURCE: starts and runs 3-5 seconds and shuts down

Sounds like your security system is shutting the car down. You should be able to leave the key on for 15 minutes and it will reset itself. Make sure you are using factory keys, and they are in good condition.

Posted on May 28, 2009

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SOURCE: 1998 Grand Prix 3.8 supercharged fuel pump wont

It should be located on the outside of the frame rail,forward of the right front tire. It should look like a ceramic type ballist with a pigtail and one bolt holding it on. If the pigtail has a connector dont forget to check for water, rust, etc. also check for wire damage. It should be the culprit though since by jumping the relay you are in theroy bypassing the resistor. I hope this is correct I didnt have time to pull a diagram and look at it but I am pretty sure this is correct. Thank you for your vote and comment. I hope this helps, good luck my friend.

Posted on Jul 27, 2009

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