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Anonymous Poster
CopeRonnie@ymail.com
Jul 17, 2009, 6:24 AM
Post #1 of 6
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need expert advice
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1997 isuzu pickup drives about 8 to 12 miles starts bucking and eventually slows so i have to pull ove and wait 15 to 20 min to continue trip runs good otherwise sputters little bit but has power no valve tapping or oil smoking plugs seem ok has 2.2 4cyl please help i'm stuck in country and can't drive to town to work
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 17, 2009, 6:28 AM
Post #2 of 6
(1615 views)
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Re: need expert advice
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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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Guest
Anonymous Poster
Jul 17, 2009, 7:16 AM
Post #3 of 6
(1610 views)
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Re: need expert advice
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i would say fuel pump.Had same thing happen to me.
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Guest
Anonymous Poster
Jul 17, 2009, 10:07 AM
Post #5 of 6
(1602 views)
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Re: need expert advice
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if I had to bet money on?
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1989 toyota pickup 3.0 crank no start
Please Help - Knock sound & engine fail
