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jeffhunt502
New User
Mar 26, 2010, 5:35 PM
Post #1 of 6
(2905 views)
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96 sebring
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i have a 1996 chrysler sebring with 2.5 and when it starts up it runs find then u drive it for a bit and when it get hot it shuts it self off and then when it cools it will restart any suggestions or advice will greatly be appreciated.... thanks
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nickwarner
Veteran
/ Moderator
Mar 26, 2010, 6:36 PM
Post #2 of 6
(2903 views)
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when it isn't running find out whats missing, fuel or spark. A fuel pump or crank sensor both can do this. Are there any codes?
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jeffhunt502
New User
Mar 26, 2010, 11:29 PM
Post #3 of 6
(2897 views)
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Re: 96 sebring
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no check engine light is on and autozone wont test it unless the check engine light is on.... how else can i get codes
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nickwarner
Veteran
/ Moderator
Mar 27, 2010, 3:18 PM
Post #4 of 6
(2891 views)
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doesn't sound like you need to worry about codes at this point if the light is off. You need a fuel pressure gauge and a spark tester to see what is happening when it won't start. If the fuel pressure is good then you have a spark issue. If not, then its a fuel issue. Do some testing with it to narrow down the system causing the problem.
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 27, 2010, 4:57 PM
Post #5 of 6
(2890 views)
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Nick is right,
here is the entire procedure for isolating the cause of a "crank, no start" in a little more detail.
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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nickwarner
Veteran
/ Moderator
Mar 27, 2010, 9:45 PM
Post #6 of 6
(2882 views)
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I can find nothing to add to HT's post. He has laid it out in the easiest explanation that can be given. All techs use this system to troubleshoot your problem. Post back with what you find after doing the tests as stated and we can go from there to keep you on the road. Many parts stores will rent you noid lights and fuel pressure gauges for a small deposit and you cannot find the problem without it. Spark testers are a cheap yet invaluable item to have in your toolbox. Let us know what you find.
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