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1999 ford ranger, no start
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davet030
Novice
Dec 25, 2011, 9:23 AM
Post #1 of 2
(2059 views)
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1999 ford ranger, no start
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1999 ford ranger sport, 2wd, 2.3L, 160,000 miles
I was driving, the truck cut off, guages still lit. I turned the key off, tried to restart and nothing. The engine is turning, just wont fire. I have had a spark plug going bad (arcing). Battery is fine, and it doesnt just click as if the starter was bad. Leads me to think a fuel problem? If you agree, how do I figure out where the problem is... filter, pump, ignition switch, etc.? Thanks for any help and Merry Christmas!
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 25, 2011, 9:44 AM
Post #2 of 2
(2039 views)
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Re: 1999 ford ranger, no start
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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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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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