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Need help, my 01 1500 5.2 will not stay running

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Old Feb 16, 2020 | 12:42 PM
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Jeremy Royalty's Avatar
Jeremy Royalty
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Default Need help, my 01 1500 5.2 will not stay running

The truck will run and drive until it reaches operating temp. Then whether you're driving or come to a stop it dies. I've let it sit anywhere from 10 minutes to sometimes up to an hour before it will start again. Yesterday I noticed after test driving it that stepping on the gas hard will cause it to die as well. I've let it just sit and idle for an hour and a half and it did not die.
ive replaced-
Map sensor
IAC
Ignition coil
Checked fuel pressure
Checked for 02 sensor issues (no check engine light on)
I'm at a loss and need help!
Thanks.
 
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Old Feb 16, 2020 | 12:53 PM
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Originally Posted by Jeremy Royalty
The truck will run and drive until it reaches operating temp. Then whether you're driving or come to a stop it dies. I've let it sit anywhere from 10 minutes to sometimes up to an hour before it will start again. Yesterday I noticed after test driving it that stepping on the gas hard will cause it to die as well. I've let it just sit and idle for an hour and a half and it did not die.
ive replaced-
Map sensor
IAC
Ignition coil
Checked fuel pressure
Checked for 02 sensor issues (no check engine light on)
I'm at a loss and need help!
Thanks.
If the Map and IAC isn't a Mopar unit, replace them with a Mopar unit. See what you lose when it won't start. How old is the gas?
 
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Old Feb 16, 2020 | 12:59 PM
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Gas isnt old at all to my knowledge... It was my daily driver until 2 weeks ago when it started doing this. How do I check for spark when it won't start. Sorry not a mechanic... Lol. When it dies it will crank and act like it's going to start but won't turn over.
 
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Old Feb 16, 2020 | 02:01 PM
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Originally Posted by Jeremy Royalty
Gas isnt old at all to my knowledge... It was my daily driver until 2 weeks ago when it started doing this. How do I check for spark when it won't start. Sorry not a mechanic... Lol. When it dies it will crank and act like it's going to start but won't turn over.
​​​​​​ Best way is pull a plug wire and spark plug. Set the spsrk plug on a piece of metal and have someone crank the motor. If it Sparks you are getting spark. If it doesn't spark, pull the plug for the ignition coil. Get a test light and ground it. Stick the other end of the test light into the pin the PCM controls. If it lights up then it is signaling the coil for spark. That would tell you the coil is bad, if the distributor is in good shape
 
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