Replaced the CPS but still just cranks doesn't start.

[raceready56]

I have a 1997 f-350 7.3l. I had the truck running for about 10 min and then went to leave the house and the truck quick without warning. Ive been reading up and it seemed like the Crank Positioning Sensor. But I replaced that and it still just cranks over and doesn't start not even a stutter. I hooked my superchip programmer up to check the diagnostics and it wont even connect. If i could get some insight that would be great. thanks

[dhanna6powerstroke]

Originally Posted by raceready56

I have a 1997 f-350 7.3l. I had the truck running for about 10 min and then went to leave the house and the truck quick without warning. Ive been reading up and it seemed like the Crank Positioning Sensor. But I replaced that and it still just cranks over and doesn't start not even a stutter. I hooked my superchip programmer up to check the diagnostics and it wont even connect. If i could get some insight that would be great. thanks

Does the "Wait to Start" light come on? Check the fuses for the cigarette lighter which also powers the diagnostic plug.

[raceready56]

I just checked all the fuses and none of them were blown or bad. The wait to start usually comes on but it hasn't the last couple of times.

[dhanna6powerstroke]

Originally Posted by raceready56

I just checked all the fuses and none of them were blown or bad. The wait to start usually comes on but it hasn't the last couple of times.

Fuse #22 under the hood is blown. The fuel heater is shorted and blew the fuse. It is a green 30 amp maxi fuse. You need to disconnect the fuel heater which is located in the fuel bowl and replace the fuse and you'll be good to go.

[CSIPSD]

Yup... Fuel bowl heater.

Unplug, replace fuse, go on your way.

[raceready56]

Thanks. I just pulled the fuse and it was blown. But to disconnect the fuel heater i need to take the fuel filter out? where is it exactly.

[raceready56]

Do i plug it back in after I put the new fuse in?

[CSIPSD]

Un plug the heater on the outside of the bowl. Bottom back side of the fuel bowl, you will see a wire harness. Unplug it then you will be good to go.

[raceready56]

If I unplug that will it effect my block heater?

[01clj]

No that is a seperate system it wont affect the block heater