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lupe moreno
New User

Oct 2, 2010, 2:13 PM

Post #1 of 9 (1352 views)
headache Sign In

2004 dodge intrepid w a 2.7 shuts off after driving 10-15 miles let it cool for about 3hrs then it ill do it all over have replaced all coils and fuel pump


Hammer Time
Ultimate Carjunky / Moderator
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Oct 2, 2010, 2:21 PM

Post #2 of 9 (1348 views)
Re: headache Sign In

If I were to make a wild guess it would be a crank sensor but this is the testing to find out anything for sure.

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.



(This post was edited by Hammer Time on Oct 2, 2010, 2:21 PM)


Tom Greenleaf
Ultimate Carjunky / Moderator
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Oct 7, 2010, 1:55 AM

Post #3 of 9 (1334 views)
Re: headache Sign In

Arggh! You got to catch it when down for testing. Got one that either runs new or not at all at random - not the same car.

WTF are you supposed to fix if everything is working? Codes might help with a 2004. Mine is a Fred Flintstone car - laugh,



T



(This post was edited by Tom Greenleaf on Oct 7, 2010, 2:00 AM)


collegefreak
New User

Oct 26, 2010, 1:59 PM

Post #4 of 9 (1309 views)
post icon Re: headache Sign In

i would reckon it is the crank sensor aswell you could need a new one....
CollegeFreak


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Oct 26, 2010, 2:41 PM

Post #5 of 9 (1306 views)
Re: headache Sign In


Quote
i would reckon it is the crank sensor aswell you could need a new one....


Sure it could, along with 100 other things.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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.



Tom Greenleaf
Ultimate Carjunky / Moderator
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Oct 27, 2010, 1:16 PM

Post #6 of 9 (1293 views)
Re: headache Sign In

You got that right HT. Could be 100 things.

Will be soon scraping a good car as even the mabee stuff that could be wrong exceeds its value,

Tom



chickenhouse
Enthusiast

Oct 27, 2010, 6:36 PM

Post #7 of 9 (1280 views)
Re: headache Sign In

The Cavalier "beater?"


Sidom
Veteran / Moderator
Sidom profile image

Oct 27, 2010, 7:29 PM

Post #8 of 9 (1276 views)
Re: headache Sign In

Uhhhhhhhh CH........."beater" is old school........ I believe the current PC correct term is "hoopty"..............Sly Sly Sly Sly


chickenhouse
Enthusiast

Oct 28, 2010, 7:55 AM

Post #9 of 9 (1266 views)
Re: headache Sign In

C'mon, you just made that up! I've never heard of hoopty unless it was indluded with a do! I think T called it a beater himself!






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