Truck wont start

[cwerle]

Ok so I have tried preaty much every thing I can think of to get my1994 Sierra started. About 5 days ago we got a preaty nasty storm full of ice and snow. The truck ran fine for about two days after the storm. I woke up the next morning and it started but it keep booggin out on me when I would push the throttle down. I parked it and let it sit. I put some seafoam in the gas tank thinking I had water in it. It didn't do any thing it keep bogging down. So again I left it parked. Went out there this morning to see if I could get it fired.

 

Turned the key and it just keep cranking.

Checked the plugs and wires-They where good.

Pulled a wire off and grounded it to a screw driver to the chassi. - Fired it and had a spark.

Check my ECM, Injector, Ingnition ETC... Fuses all good. still wouldnt start

I finaly broke down a sprayed some ether into the throtle body and it still wont start.

 

Its cranking, its firing, its got gas, oil, coolent ETC...

 

Any ideas on what it might be?

 

Please let me know.

 

-Christopher

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[cwerle]

People keep viewing it but no reply.

 

PLEASE I NEED HELP

 

-Christopher

[90GMCZ71]

People keep viewing it but no reply. 

 

PLEASE I NEED HELP 

 

-Christopher

 

<{POST_SNAPBACK}>

 

 

 

Things you need to check:

 

Are the injectors spraying fuel?

Make sure there are no cracked vacuum hoses (pcv valve hose and hose to MAP especially).

EGR being stuck open.

Check to see if timing chain jumped a tooth. Rotate engine my hand until TDC on compression stroke, look to see that rotor points at #1 on the cap.

Any codes set by ECM?

 

//90GMCZ71

[SPARK CHASER]

Sounds like a bad fuel pump or a clogged fuel filter to me.

[I-H8-4Ds]

My first thought is the timing chain has jumped. It should do SOMETHING with the starting fluid, if you have spark. Good luck.

[SPARK CHASER]

It's possible during trouble shooting that the ignition module got fried. If the timing chain had slipped,the engine would have quit instantly in my opinion.