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Bizarre no start on 2002 7.3L

1172 Views 8 Replies 4 Participants Last post by  bigb, 
T
Hi guys,

A friend of mine and I have been working on his 2002 7.3, and still cannot get it to start. We have been through the wiring harness, replaced most every sensor including ICP. Replaced the IDM module and checked power to it, and still no start. Connectors to the IDM are clean and seem ok.

It's acting like it's not getting any fuel, even though we've been through the feed side, lift pump etc, all are good and we are getting good flow into the engine compartment. It will puff a little smoke on cranking but not like normal, and no start.

After many hours we are at a loss. Any suggestions?
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greenskeeper79
plug in the block heater if you are unsure as to whether the GP system is working correctly.

Prior to starting, jump the large posts on the GPR for at least 30 seconds and crank away.

You may want to pull a valve cover and see if the injectors are squirting oil while cranking to indicate they are trying to fire.
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