Truck died this morning

[Papers]

Ok so my truck died this morning. Just recently replace the CPS but when cranking it it doesn't show any rpm. Does this mean CPS is dead ?



late 99 7.3

Update, This morning got to working on it checked the wires for the CPS er CMS whatever its called everything looks ok then with more reading I decided to check more and no wait to start light is coming on and the truck doesn't act like it wants to start or run at all

[dzchey21]

more than likely. Did you get the updated cps the last time you bought one?

[Papers]

it is definitely a different design, smaller in the area that plugs into the engine itself.

[Papers]

someone give me some ideas please. also my glow plug relay is kinda jacked up could this cause any of this?

I have to jumper it some times with pliers to get the motor to start "to cheap to buy a new one for a while"

[Papers]

oh and no trouble codes

[sldghamr]

Originally Posted by Papers

Ok so my truck died this morning. Just recently replace the CPS but when cranking it it doesn't show any rpm. Does this mean CPS is dead ?



late 99 7.3

Update, This morning got to working on it checked the wires for the CPS er CMS whatever its called everything looks ok then with more reading I decided to check more and no wait to start light is coming on and the truck doesn't act like it wants to start or run at all

last i checked, no wait to start light on a 7.3 means Fuse #22 is blown. that fuse supplies power to the PCM.

[Papers]

just checked that fuse and swapped the #30 location relay still no wait to start light

[Papers]

Turned out to be maxi fuse #24 very vague description power block or something like that. Found it by going through every fuse under the hood.

Don't know what caused it to fry but will keep a spare 30a now