1996 Ford Explorer got some electrical problems, anybody help me please?

Tiny
JOYFINE
  • MEMBER
  • 1996 FORD EXPLORER
I have replaced the fuel pump three times. Had a ford diag. Check and replaced all recomended parts but when ever I reach 55mph it shuts off(leaving me on the side of the road) it can take from 30 min. To 3 days before it will start again. So im thinking electrical. However, ive been told that there are 47 different computer chips for this make. What do I need to do to this thing. The last fuel pump had me running great for about a month then.55mph. And she just shuts off. No one seems to know what the problem is. So I come to the great people of 2CarPros please hook me up:}
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Wednesday, May 16th, 2012 AT 6:22 AM

4 Replies

Tiny
FIXITMR
  • MEMBER
Is CEL on?
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Wednesday, May 16th, 2012 AT 7:12 AM
Tiny
FIXITMR
  • MEMBER
Has crank sensor been replaced?
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Wednesday, May 16th, 2012 AT 7:13 AM
Tiny
WRENCHTECH
  • EXPERT
All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
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Wednesday, May 16th, 2012 AT 10:20 AM
Tiny
JIMMYDOC
  • MEMBER
Check the module for the problem under the hood on the wheel well or on the firewall its a square looking box and it controls it and they do have problems with it my company had to replace 2 of them go to the ford parts dept I think its called a control module they just do what is happening to you hope this helps good luck fuel pumps don t go bad that many times, may be you need a more powerful diag :
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Thursday, May 17th, 2012 AT 1:27 AM

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