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I have a 1994 chevy s-10 pick-up. I just replaced the gas tank, sending unit and fuel pump. Still won't start Prior to doing this I tried to drive it last week. It started and ran for about 2 minutes and bogged down and stalled. I then disconnected the fuel line running from the fuel filter to the engine and there was fuel pushing through when key was turned. It cranked but wouldn't start again for a week. Then the same thing. It ran for a few minutes then stalled. After replacing all the parts with the gas tank today it still will only crank and not start. It has been mentioned to me to replace the crank sensor or spider assembly in plenum or check for regulator issues. Any ideas that might be familiar to anyone out there would be of great help --- trouble shooting is breaking the bank. I tried to code it but had already disconnected the battery and cleared the codes in order to try and start. So without it starting the check engine light won't come on for us to get a code. Thanks

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  • 51 Answers

Check the distributor cap and rotor.... If they look originial or if there's any moisture inside the cap, replace both of them.
Make sure that if you do replace them that theres no moisture in the distributor before putting new parts in.

Posted on Oct 21, 2013

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Check the fuel pump relay , or maybe you have corrosion or exposed wiring in the fuse box that's related to fuel pump Check the fuel return line downstream the gas tank to fuel rail Test the fuel pump with electrical tester from fuel pump relay In the fuse box, get someone to crank the engine while test The 12 volt in fuel pump relay, it should continue the 12 volt while You cranking Check fuel injectors pulsing by special noid led tester Should one wire ground and the other is pulse from the ECM trust me just follow those things ,and your truck will start normal

Posted on Oct 21, 2013

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Posted on Jan 02, 2017

SOURCE: Car will start but dies after about 10 minutes

mine did this it was the crank shaft sensor

Posted on Jun 26, 2008

  • 66 Answers

SOURCE: hard start

Its your fuel pump.I had the same plomblem not too long ago.I was spraying either in to start it.I have a 97 chevy truck witch requires 65 psi to start and 55 to run properly.You need to find out much psi you need to start it.You can probaly look in your manual or just make a few calls.My truck had 55 psi and it ran fine i just had to get it running first.Good luck.I wonder if that fuel pressure regulator was a waste of time like it was for me.

Posted on Nov 25, 2008

  • 31 Answers

SOURCE: Engine cranks, but does not start

My suggestion to this is to check the basics. Check fuel pressure and check spark during crank. There is no quick answer for a no start condition. You always have to start by checking the basics. An engine with no spark or fuel will not start every time.

Posted on Feb 06, 2009

  • 1 Answer

SOURCE: Engine cranks, won't start. Three days later, it starts???

probaly a fuel pump its common for vehicles to do that the best thing to do next is a fuel pressure check to verifiy its the pump

Posted on Apr 15, 2009

greg_margo
  • 1959 Answers

SOURCE: 2004 Chrsyler Pacifica Won't Start

2 possible problem come to mind:

  • Bad ignition switch; faulty switch will occasionally make contact but not every time
  • Bad starter; less likely but possible; a bad starter will function when it's cold but when it heats up, takes much more power to make it work
I hope this helps with your problem and wish you the best of luck. Take care!
Greg

Posted on May 12, 2009

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Start with the simple and try spraying some starter fluid in to the air intake tube (where the air filter is), If the engine starts, then your have no ignition issues and that it's going to be a fuel issue. Check the fuel pressure at the shredder valve which is located on the fuel line that goes in to the Upper intake manifold.

There should be 62-65 PSI with the ignition key's turned on Engine not started, if there is less then that. The fuel injectors will not operate to start the engine and your going to have to replace the fuel pump located in the gas tank. Note a dirty fuel filter that is restricting the fuel flow can also do this, so best to replace the fuel filter first before replacing the fuel pump and see if that will get the engine running again. (fuel sending unit)

When replacing the fuel sending unit, don't for get to replace the wire harness from the sending unit to the frame. It's common for the wires inside and insulator to break and will cause low fuel pressure issues for lack of electrical current flow.

If the engine does not start with starter fluid, then there is a good chance that you may have a ICM that has gone bad, coil of a crank shaft sensor that may need to be replaced.

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REMOVAL & INSTALLATION NOTE: To gain access to the fuel pump, it is necessary to remove the fuel tank.
  1. Depressurize the fuel system and remove the fuel tank from the vehicle.
  2. Remove any dirt that has accumulated around the fuel pump attaching flange, to prevent it from entering the tank during service.
  3. Turn the fuel pump locking ring counterclockwise using a locking ring removal tool and remove the locking ring.
  4. Remove the fuel pump and bracket assembly.
  5. Remove the seal gasket and discard it. To install:
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    Fig. 2: Fuel pump and sending unit used on the Super Cab Ranger pick-up 89685g03.gif
    Fig. 3: Fuel pump and sending unit used on the Explorer and Mountaineer 89685g04.gif

  7. Insert the fuel pump assembly into the fuel tank, then secure it in place with the locking ring. Tighten the ring until secure.
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Gas gauge not responding 94 chevy s-10 pick up. recent replacement of fuel pump about 1 year ago. can i assume i can continue to drive w/no gauge or does this mean the fuel pump is on its way out? is it...


GM vehicles ,especially trucks it seems have alot of problems with their fuel guage sending units. The sending unit is the most likely reason but it can still be wiring or the guage itself.
Does it function at anytime or is it inoperable all the time ?
Most of the time (but not always) when a sending unit is not working properly it is usually when you have a certain amount of fuel in the tank and when it gets to that level it dont function but any level above or below that level it functions.
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Autozone probably carry them on the shelf.

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