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tommyboy

98.5 cranks but no start

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my truck is not starting ?!!!!! when i go to start it, it just cranks and cranks im not getting any power to my lift and inj. pump. truck is stock but a couple people told me it was a bad ecm ? went threw the wires they seemed fine noticed im not getting rpms though when its cranking. so i replaced the crank sensor. still not moving. i got the lift pump to run with the relay jumped but plug it back in and it dosent fire up need some help maybe a wire diagram ??or just some expert thoughts !thanks !

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Have you checked for codes? Check the PDC under the hood. See if you have a blown fuse for the LP. Exchange with a like fuse and see if you get fuel.

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yea everythings fine i checked the pdc no fuses are blown and when i hooked it up to the scanner it couldnt communicate with computer

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did you check to see there are any bad fuses under hood? Is there there a comm fuse?Also make sure the batteries are up and good clean terminals.... Did this just happen all of the sudden?

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I understand the engine turns over. Have you checked all the "other" wires connected to the batteries? I had my lift pump cut out, was traced to a connection a few inches from the passenger's side battery. Check the grounds too.

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I understand the engine turns over. Have you checked all the "other" wires connected to the batteries? I had my lift pump cut out, was traced to a connection a few inches from the passenger's side battery. Check the grounds too.

Ill check again were is the comm fuse ? O yeah and my wts light doesn't turn on at all

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Ill check again were is the comm fuse ? O yeah and my wts light doesn't turn on at all

The WTS and the scanner not communicating with the truck is sounding like you hava a ECM issue. Unfortunately I dont know how to tell you to check it.

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