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shutting down after it runs for about a hafe hour to an hour

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Mar 19, 2012, 9:49 AM

Post #1 of 3 (725 views)
shutting down after it runs for about a hafe hour to an hour Sign In

Yes I am helping my friend work on her 94 dodge dekoda 2 wheel drive v 6 3.9 ok what is happaning it starts fine runns fine after she drives it for about hafe hour to and hour it will just stop running in mide drive and won't start back up untill it sits for a little bet I run a code cheak the only code it gave is code 17 and after it sits for a wiol like I said it strat perfectly till it runns for a little bit some people uelay fuel pumpe some are saying the tranny control silonod please let me know what you think thank you

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Mar 19, 2012, 12:23 PM

Post #2 of 3 (671 views)
Re: shutting down after it runs for about a hafe hour to an hour [In reply to] Sign In

I think you should use spell check for starters.

Need to see what is missing when it is NOT running, fuel or spark would be a nice place to begin,

Long retired now

Veteran / Moderator
nickwarner profile image

Mar 19, 2012, 1:29 PM

Post #3 of 3 (660 views)
Re: shutting down after it runs for about a hafe hour to an hour [In reply to] Sign In

Since HT has such a nice list that explains this I'm going to borrow it and post it here.

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.

shutting down after it runs for about a hafe hour to an hour

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