Hey
I have a 98 v10 and it ran fine parked it and came out the next morning and nothing. I gave it a small squirt of starting fluid and it kicked over for a second . Any ideas on what could have made it just stop. The pump was changed out about 1500k miles ago and it kick's on and sounds fine. Any help would be great thanks !!!

 

If you aren't getting injector pulse, first thing I would look at is the cam position sensor.

 

Hey thanks for the advice . Now here is the problem that i am having . getting to the sensor is tricky . Would you happen to know what number the Cps wires are or there color ? It would save me a ton of time if i can just do the check on the PCM plug.

 

Download the service manual. It should help with location and color of those wires.

 

Hey thanks for the tip . I am just trying to make a check list of what i have checked. Here is what i know i know that it will kick over with a little starting fluid . i also know that the pump and pressure at the rail is good. I know that i have power to the injectors. but they do not pulse. Now can't the ecu still have enough info from the crank sens and the TPS to run ? i am just trying to save myself some work.

 

No. It's a sequential system, not batch fire. (it fires one injector at a time, depending on which cylinder is next in the firing sequence.... instead of just firing all of 'em on one side at the same time....) So, it needs to know WHERE in the the firing order it is. That's what the cam sensor is for. It lets the ECM know where it's at. If the ECM doesn't know, it has no clue what injector to fire, so, it defaults to "none of them".

I *think* the cam sensor on your screws into the timing cover.... Looking at the 96SM, cam sensor is just to the drivers side of the a/c compressor. three wire connector.

 

Hey that is something that i did not know . Thanks i was under the impression that it was a batch fire. You know with all of the googling that i have done you would think that someone would have said this. Thank you again for taking the time to help a stranger out, pay it forward right ?

 

indeed.

One would think that a lack of cam sensor signal would set a code..... So far as I know, the 98 won't show codes with the key dance though... Is the CEL on??

 

No it does not have any MIL lights on . This truck is going to get a new motor wire harness . I bought it from a guy who owned a farm. He never said anything but it had to have been struck my lighting or a pole wire. I say this due to the condition of the wire harness it has and the fact that the starter,Alternator,injectors,ESC,and all of the sensors being new. But i dont know i do know that this truck had one job and that was work. He put a 1 ton rear in it and leafs. i can put two cords of hard wood in it and she sags about 3/4in . The ride sucks and he had this 1in plate welded in to the box with and goose neck ball and some tow hooks. And he put a manual valve body in the trans. And i think that he changed something with the torque converter. I live in the north so the body is shot but the bones are great i just rebuilt the front all of it aside from the axil and gears but suspension steering brakes and bearings. this winter its getting a frame off rebuild i just bought a 95 roller club cab but with out the rear doors but i am going to strip the frame blast it and seal it all new brake and fuel lines. So its going to be like new i am still thinking about a motor rebuild i don't know.

 

Were you planning on making one truck out of two? If so, keep in mind that a fair bit changed between 95 and 98. Cab floor is different, seat belt mounts are different, seats are different....... even the shape of the instrument cluster is different......