5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

problem starting.

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Old Mar 2, 2008 | 04:49 PM
  #1  
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ericburt
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Default problem starting.

Today in the morningI sprayed my engine down with wd-40 to clean it..Right after i started my car and drove it for a couple of minutes and it was fine. then about 15 minutes later i go to start it and its just cranking..Im getting fuel, my battery and alt. are good...I got a new coil and its still not working...For about 8 months ive been driving with the tps sensor unplugged and i dont know if that has anything to do with it. And also the tfi-iv ignition module is missing a screw and im not sure if that can have anything to do with it......Any ideas?
Old Mar 2, 2008 | 04:53 PM
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Default RE: problem starting.

som you used wd-40 and no water at all?? check inside the cap and make sure no moisture or wd-40 got in there..if so dry it out and retest
Old Mar 2, 2008 | 04:56 PM
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Default RE: problem starting.

I checked and that is all dry
Old Mar 2, 2008 | 04:58 PM
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mjr46
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Default RE: problem starting.

check all ignition connectors or start with the basics.. check for fuel and spark.. check for fuel by spraying starting fluid in the intake and see if it fires up..if not get a inline spark checker and see if you have spark at the plugs then to the cap from coil
Old Mar 2, 2008 | 05:14 PM
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Default RE: problem starting.

We arent getting any spark, but we tried a new coil already
Old Mar 2, 2008 | 05:28 PM
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Default RE: problem starting.

does it sound like its the tfi?
Old Mar 2, 2008 | 05:31 PM
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aode08
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Default RE: problem starting.

Pull the connector off to the coil pack, tighten the two tabs and plug it back on.

Then I would change the coil wire to dizzy or better yet all the wires and TFI
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