Will the starter crank? Any applicable codes? If it cranks good but won't start, have a helper crank it, while you check for spark at the plugs, if you have spark everywhere, use a gage and check fuel pressure.

Answered by JDL (expert)
14,457 answers provided

I replaced the heater core.

Response from Crump2306
1 question asked

Yes the starter cranks but will not run. It's getting fire to the plugs. The fuel rail bleeder has no fuel coming out when the key is On or in the start position. The truck run before I took the dash out to change the heater core. I put it all back together and it won't run. I have taken most of it back out and checked the plugins. But no luck yet

Response from Crump2306
1 question asked

It did have a theft detected, engine disabled code. But the keys are programmed.

Response from Crump2306
1 question asked

I'd check voltage and ground to the fuel pump, go from there.Wiring diagram below. What was the actual code?

Pink wire with black tracer at fuel pump connector is voltage for fuel pump motor, solid black wire is ground.

Answered by JDL (expert)
14,457 answers provided