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-   -   intermitent long crank (https://www.performancetrucks.net/forums/gmt-800-older-gm-general-discussion-130/intermitent-long-crank-539974/)

SSpeeDEMONSS Sep 29, 2015 11:33 AM

intermitent long crank
 
My fuel pump just went out so I replaced it. Before it did I was having to crank the engine over for 3 or 4 seconds to get it to start. Changed the pump and fixed that issue. A few days later it started doing it again. Now it fires up first thing in the morning but after that it takes a while to start. Going to change the fuel filter right now but not sure what else it could be. Any suggestions.

Garrett

Wolftrk99 Sep 29, 2015 03:03 PM

Check your Fuel pressure regulator and what brand pump did you put in it???

Suburbazine Sep 29, 2015 05:10 PM

Sounds like a failing crank/cam sensor. Check fuel pressure first though, you should have 48+psi key on engine off and 55+ key on engine on.

SSpeeDEMONSS Sep 30, 2015 01:09 PM

I will check the regulator today. I will need to get a gauge to check the pressure though.

Garrett

SSpeeDEMONSS Oct 3, 2015 01:00 PM

Pulled the vacuum line and it was full of fuel. Replaced the regulator and fuel filter and ito good to go. Thank you for the help.

Garrett

1FastBrick Oct 3, 2015 08:08 PM

Thanks for the update!

Wolftrk99 Oct 3, 2015 08:21 PM

Glad you got it!!!


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