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Repair guides and support for C/K pickup trucks sold by General Motors under the GMC brand, including the GMC Sierra.

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Truck Wont start, fuel pump shorted

1996 K1500

Found fuel pump shorted, changed full assembly. Wont start, ac wont work, doors unlock electric but wont lock, no bad fuses.

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Battery is fully charged. WAs disconnected for work.

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Let's start with the no starting issue. You replaced the pump assembly but does the fuel pump get any power? Where and how have you checked?

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Is your new pump kicking on? Did you find out what caused the first pump to short out? If you look down the throttle body while it's cranking, is it spraying fuel?(carb press gas and accl pump should squirt a stream) if the fuel pump is not coming on then check the fuel pump relay underneath the hood on the firewall passenger side when the key is turned on listen for a click.

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Kevn Dixn will be eternally grateful.
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