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my galant just runs for 15 mins then just turns over
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darrius2008
New User
Dec 5, 2009, 9:31 AM
Post #1 of 3
(1901 views)
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my galant just runs for 15 mins then just turns over
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I have a 1995 galant with a 2.4 sohc. my problem is that i can start it in the morning it runs for 15 mins. After that it turns over it wont start until the next morning. then it cranks right up
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 5, 2009, 11:03 AM
Post #2 of 3
(1894 views)
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Re: my galant just runs for 15 mins then just turns over
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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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Loren Champlain Sr
Veteran
/ Moderator
Dec 5, 2009, 12:10 PM
Post #3 of 3
(1890 views)
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Re: my galant just runs for 15 mins then just turns over
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darrius; Does the engine begin running rough before it dies? Or, does it 'just shut off' as if you turned the key. In cold conditions, coolant temp sensors and connections are at the top of the list. A cold engine needs a lot of fuel, but as the engine warms, it can't handle that exessive fuel. The coolant temp sensor 'tells' the computer how cold/warm the engine is, and delivers fuel accordingly. Using HT's 'flow chart' will help you get to the bottom of this quickly.
Loren
SW Washington
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