1988 Ford Ranger CEL

  • 1988 FORD RANGER
  • 2.9L
  • V6
  • 4WD
  • 130,000 MILES
Hey there guys having issues w my pickup. I was driving it one day then it just died out of the blue. Replaced cap rotor, plugs, wires, fuel filter, high pressure pump, and injectors. Check engine light is still on and engine will not run. Turns over but will not fire. It's in time. 35lbs of fuel pressure. Replaced FPR. Has strong spark. This is driving me insane please help.
Do you
have the same problem?
Sunday, May 17th, 2015 AT 9:14 PM

1 Reply

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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Monday, May 18th, 2015 AT 2:05 AM

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