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william66
New User
Jul 31, 2014, 3:20 PM
Post #1 of 4
(1271 views)
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i have a 1995 ford ranger 2.3 4 cyl cant get fire to the plug wires and fuel relay have replaced crank sensor cam sensor cool pack and computer checked all fuses am at a loss not sure what else it could be
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 31, 2014, 3:40 PM
Post #2 of 4
(1263 views)
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Re: cant get fire
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OK, back up and start from the beginning.
Answer all of these questions and we'll go from there.
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.
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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william66
New User
Jul 31, 2014, 3:48 PM
Post #3 of 4
(1260 views)
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Re: cant get fire
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have done all this getting fire to coil but nothing past there have put new coil pack on was thinking it maybe in wiring not sure were else to look
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 31, 2014, 4:13 PM
Post #4 of 4
(1257 views)
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Re: cant get fire
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No, you haven't. We're willing to help you but you're going to do it our way.
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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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