Truck wont start. Need HELP UPDATED!!!!!

wheels

Donating Member
OK, so I wen to my mechanic today to pick up my truck, ( he did a front end rebuild, pitman arm etc.) So i start the TY, eveything is fine, idleing fine. He is a firend of my parents so we are talking for about 10 minutes and then it shuts off, no sputtering, just quit. We screw around with things, fuel pressure is good, plenty of spark, but the injectors are not pulsing (checked with a test light).
Now my mechanic was just diagnosed with lymphoma and is getting chemo, so I didnt want him to have to work too hard so we didnt push it on the lift. After screwing around for a while, it starts fine. I bite the bullet and try to drive to my parents, about 15 minutes away. I make it fine, no problems at all. About an hour later i go to start it and it turns over great, but wont fire. So i get a new ignition module and put that in and it starts right up. Great. Pull it into the garage. Try to start and same thing, cranks, but doesnt fire. Checked the fuseable link at the alternator, fuel pressure is at 40 witht he tan line energized. Everything looked fine. I dont know what else it could be. IF you have any ideas please let me know.
 
Last edited:

SikVSix

New member
Re: Truck wont start. Need HELP

Re: Truck wont start. Need HELP

probly not it, but check the adjustment on the ignition switch under the dash. I know it can cause a crank with no fire which can be a sometimes thing depending on how hard you're turning the key each time.
I'm not sure about it shutting off all of a sudden though, thats why I say its probly not it.
 

wheels

Donating Member
Re: Truck wont start. Need HELP UPDATED!!!!!

What would cause a relay to make clicking noises randomly? The furthest right relay above the brake booster is now clicking randomly and something in the throttle body area is making noise. What relay is it, and why would it click??? It seems like it will click one and the truck will start, and it clicks again and it shuts off.
 

sly dvl

Ya, it's got a Turbo
Re: Truck wont start. Need HELP UPDATED!!!!!

Sounds like either a bad ground or your ECM is on its way out.
Try tapping on the ECM with a screwdriver handle with the Ign. on (or banging on the glove compartment area) and see if that starts / stops the clicking.
 

wheels

Donating Member
Re: Truck wont start. Need HELP UPDATED!!!!!

I tried tapping on the ECM with the key on with no help.

I will check the grounds.

The relay that was clicking was the fuel pump relay, but i am getting good pressure at the fuel rail, and the pump is priming and staying of for a few seconds after cranking.
 

wheels

Donating Member
Re: Truck wont start. Need HELP UPDATED!!!!!

Sprayed carb cleaner in the upper intake and it sputter and tried to start. So i guess the injectors arent firing.
 

sly dvl

Ya, it's got a Turbo
Re: Truck wont start. Need HELP UPDATED!!!!!

wheels said:
I tried tapping on the ECM with the key on with no help.

I will check the grounds.

The relay that was clicking was the fuel pump relay, but i am getting good pressure at the fuel rail, and the pump is priming and staying of for a few seconds after cranking.
Define "good" fuel pressure.
 

wheels

Donating Member
Re: Truck wont start. Need HELP UPDATED!!!!!

~41 at the rail with the key on or while cranking
 
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