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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

2007 tahoe rpm doesnt work hard start

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Old Mar 2, 2019 | 7:30 PM
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Default 2007 tahoe rpm doesnt work hard start

i replaced my crank sensor and it worked for a few miles ran good then it went to 0 again also replaced my cam sensor
also couldnt communicate with the ecm

Last edited by Chris Martinez; Mar 2, 2019 at 8:52 PM.
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Old Mar 3, 2019 | 12:32 PM
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did the scan tool power up?
problems with the cam sensor will cause a extended crank....as it takes the pcm extra time to learn camshaft position without the camshaft position signal.

did the scan tool power up?....ie do you have power on pin 16 of the dlc connector? if no check the cig fuse.
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Old Mar 3, 2019 | 9:25 PM
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Originally Posted by tech2
did the scan tool power up?
problems with the cam sensor will cause a extended crank....as it takes the pcm extra time to learn camshaft position without the camshaft position signal.

did the scan tool power up?....ie do you have power on pin 16 of the dlc connector? if no check the cig fuse.
yes i did use a scanner getting code P0651 and crankshaft sensor also put another new one... i will check 5v ref. tomorrow
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Old Mar 4, 2019 | 12:28 AM
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the the CPS do anything?
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