7.3 dying cps systems

[Bloodhound]

My uncle has a 2002 F350 with 7.3. The truck will run fine as long as it is ideling. When he pulls out of the drive and goes about 100 yards the truck will die. It will then crank back up. He changed the cps out. that did not fix it. The truck is at the dealer now. They spent 3 hours on it today. They can not find the problem. They think that the computer is loosing power.

My question is where do we need to start looking?

 

[blacksnapon]

My uncle has a 2002 F350 with 7.3. The truck will run fine as long as it is ideling. When he pulls out of the drive and goes about 100 yards the truck will die. It will then crank back up. He changed the cps out. that did not fix it. The truck is at the dealer now. They spent 3 hours on it today. They can not find the problem. They think that the computer is loosing power.

My question is where do we need to start looking?

Any codes? It almost sounds like a poor connection or a chafed wire. Remember, the 7.3 has an IDM instead of a ficm. Its behind the driver wheel well (next to the firewall). Good place for water intrusion in a connector.

 

[Bloodhound]

Thanks. I'll check it out. We still have to get the truck back from the dealership. I don't have a gooseneck hitch in my truck. My cousin just traded his Dodge in on an 08 F350. He is waiting on the hitch to come in.

 

[bowtiehatr]

does it shut off like someone hit the key or does it start dying out before it stops

 

[Bloodhound]

It acts like the key is turned off.

 

[bowtiehatr]

even though there was a recall on the cps, we are having some connector issues. run the truck untill she shuts off, and then try to restart the truck while watching the tach. if the tach registers rpm then its not a cps issue.

 

[Bloodhound]

We went a picked the truck up this morning. Once we got it home it took about 15 min to find the problem. it was a chafed wire going to the computer. it is now running great.

Thanks for the help guys.

 

[blacksnapon]

We went a picked the truck up this morning. Once we got it home it took about 15 min to find the problem. it was a chafed wire going to the computer. it is now running great.

Thanks for the help guys.

Glad to see you found the problem!

 

[Blade]

glad to hear u found that der problem!