Question: truck,not starting driving me nuts

[tfink660]

Its got spark, its got plenty of fuel pressure, tested fuses, but with noid light not pulsing at injectors ideas please help

 

[powercat6]

Re: Question: truck,not starting driving me nuts

Its got spark, its got plenty of fuel pressure, tested fuses, but with noid light not pulsing at injectors ideas please help

Have you checked the ignition control module? (It's under the distributor cap)

 

[ty166]

Re: Question: truck,not starting driving me nuts

try lookin here

http://www.syty.net/forums/showthread.php?t=83004&highlight=ignition+module

especially post #13

 

[tfink660]

Re: Question: truck,not starting driving me nuts

Replaced entire distributor yesterday

 

[ty166]

Re: Question: truck,not starting driving me nuts

Replaced entire distributor yesterday

with a new one or used one.......... but then again so did the guy in the link i sent you.

 

[Sportmachines]

Re: Question: truck,not starting driving me nuts

Is the injector harness pluged in? And is there power/continuity up to the plug for that harness? Also check the oil pressure switch.

 

[tfink660]

Re: Question: truck,not starting driving me nuts

New distributor, and power at injector plug

 

[tfink660]

Re: Question: truck,not starting driving me nuts

Hmm odd hooked to battery charger and it is now starting.

 

[tfink660]

Re: Question: truck,not starting driving me nuts

Wow off charger crank no start again after sitting for a,few mins on charger or off no start again no noid at injector plug again seems untermitent

 

[tfink660]

Re: Question: truck,not starting driving me nuts

Does the check engine light turn on when you turn the key on (bulb test)?

Comes on for a second then back out and stays out

 

[tfink660]

Re: Question: truck,not starting driving me nuts

Just ordered ecm see how that goes all fuses good. if i plug in this ecm when it arrives if it still a no start where should i check next? as far what to try next i have already checked and there is no broken wire between harness of ecm and the plug at Injector.

 

[tfink660]

Re: Question: truck,not starting driving me nuts

can anyone post a Diagram of Ecm and of The Fule injector wiring to and from Ecm etc.. would like to have on hand as a refrence thanks if anyone has it.

 

[tfink660]

Re: Question: truck,not starting driving me nuts

when i get this new ECM does it need to be programmed or do i just remove my EEPRO chip from origional and place into this one? havent never changed an ecm in this truck thanks let me know.

 

[turbostar]

Re: Question: truck,not starting driving me nuts

Isn't all the programming on these early ECM's on the chip?

 

[tfink660]

Re: Question: truck,not starting driving me nuts

Isn't all the programming on these early ECM's on the chip?

yah thats what i thought... so basically just pop the chip out of the old one and place into the new one? im unsure so ill wait for someone with more knowledge to let me know.

 

[sly dvl]

Re: Question: truck,not starting driving me nuts

Remove existing PROM, carefully. Insert into new ECM, carefully.

Guessing can become a very expensive game my friend. It might be worth your while to diagnose rather than throwing parts at it...

 

[tfink660]

Re: Question: truck,not starting driving me nuts

So why does it need an ECM? (If it runs, it doesn't need one, does it?).

This means something. The charger is supplying current in a path that the battery can't. Does this truck have a battery relocate? What did you do to it between the time it last ran and when it didn't? What other clues are present? (Like the goes-out-after-a-few-seconds-when-it-shouldn't Check Engine Soon light).

I think you have an electrical issue. Not an ECM or component problem. Good luck.

DaveP

Battery charger was a timing thing I'm thinking it happend once replaced ecm rthis morning been great since