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Turns over buy wont start

Replaced fuel pump turns over but will not start

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  • Contributor
  • 30 Answers

Is you moter petrol or diesel this makes a differance as to what the problem my be . If its petrol then check you have a spark at the plugs to ignite the mixture . if its diesel then you may need to bleed the injectors our fuel filter to remove the air befor it starts .

Posted on Jan 12, 2013

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Posted on Jan 02, 2017

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mrgreenz
  • 962 Answers

SOURCE: no power to fuel pump

Did you replace the fuse and the wires appropiately ? Is the shutoff valve button pressed down ? If it's up, then the shutoff (inertia switch) will not let fuel go through the sytem. If the fuel pump is new, then it has to work. Especially if it is an OEM replacement.

Posted on Feb 08, 2009

countrysi248
  • 443 Answers

SOURCE: 1995 chev. suburban fuel pump replacement, pump wont start.

The ground on the fuel pump is it ok and tight and clean ? also the brand of fuel pump is it same one always used ? did you buy it at ORileys or just where ? I changed brands once and found a good pump... I bought two pumps from same store and they both were bad.. good luck .. if it doesnt start try shooting some fuel into the air cleaner and see if it starts if so the pump still not working ok..

Posted on Apr 21, 2009

  • 135 Answers

SOURCE: 1997 Pont sunfire turns over wont start

replace engine control module

Posted on May 13, 2009

perpetually
  • 360 Answers

SOURCE: 94 jimmy turns but wont start, I replaced the fuel pump and

Check to see if you are getting the correct fuel pressure at the rail. It takes at least 55psi to push past the propets in the spider assembly. Cold weather requires even more psi. You can test this with a cheap fuel pressure gauge from almost any auto part store.

I would also check to make sure the ground for your pump has a good connection, it should be located around your rear bumper in the center. A weak ground will dramatically kill your psi, but still push fuel to the rails.

There is also a problem with the "expensive" spider assembly of that truck. The spider assembly holds the single injector and has 6 tubes going to each cylinder. The lines going into the assembly are known to leak. If you take off the manifold you can easily see if there are any leaks from it, there will be wash marks where the gas has cleaned it. Instead of buying a new spider assembly, there are rebuild kits for it.

If for come to the conclusion that you need a new fuel pressure regulator, don't let them lie to you in saying you need to buy the whole spider assembly. You CAN buy it separately for around $40. If you have problems finding it at local stores, search for it online.

Posted on Sep 14, 2009

autotherapis
  • 501 Answers

SOURCE: replaced fuel pump & still car wont start on 97 olds 88

You have to check for spark and fuel pressure. The 3800 motor can have a bad module (sits right below the coil pack, as well as bad coils. Also check for fuel pressure. I put a brand new dealer pump in a 93 Olds once and it was not putting out enough pressure to engage the injectors. Section 4 in a Hayes manual found at most Advance and Auto zone stores will give you the fuel pressure reading you need.

Hope this helps.

Posted on Mar 07, 2010

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