4.7 Stalls after WarmUp - Jeep Garage - Jeep Forum

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Old 05-16-2017, 06:09 PM
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4.7 Stalls after WarmUp

04' GC 4.7 runs great then just shuts down after 30 min of idling.
Ran fuel pressure and Noid tests...it is very hard starting after stalling so hard to get a Noid reading but appears I have no power to ignition coils after it stalls...fuel pressure remains steady. Once engine cools down it will fire right back up and then shutoff after another 30min.

Replaced CAM, CRANK and IAC Sensors
Coolant Temp Sensor TESTED GOOD
CAT restriction - TESTED GOOD, no exhaust obstructions
ASD Relay - TESTED GOOD
NEW Fuel Filter both inline and in tank, but again fuel pressure readings good.

Would love to run a vacuum test but cant seem to find a place on the intake to plug in my vacuum gauge.

Any help would be greatly appreciated!!!

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Old 05-16-2017, 06:17 PM
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Re: 4.7 Stalls after WarmUp

forgot to also mention...
NO Codes, and my gauges all continue to work fine after it stalls...but again it is VERY hard cranking and will not start until the engine has cooled down.
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