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Need Help

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Old September 4th, 2018, 11:10 PM
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Join Date: Sep 2018
Posts: 10
Default Need Help

2005 suburban, stalls when driving on freeway. At lights or at idle. Sometimes starts right back up. Or gotta wait fews mins. Do do so. Once it's starts it runs for various times. 4 mins. , 2 mins. 3 mins. Etc. I've done fuel pressure test on pump. Key on car off. Only read 30lbs. Didn't hold pressure. So. Changed out fuel pump. Didn't work. Then bought a new pcm chip. Didn't work. Theres no codes ok. Then cleaned the M.A.S. and throttle body. Didn't work. Drop the crankshaft position sensor cleaned plug and test sensor with mutlimeter. Sensor check out ok. Still nothing. Bought new battery. Still same dying out. It will run for various times then die out. I'm lost. Need help thanks .
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