i have a 99 f250 7.3 powerstroke. the cam sensor was acting up. that what the scan tool said. i replaced the cam position sensor yesterday, and the truck is still acting up. the motor hitches and will shut off randomly. it tripped the check engine light, and the code is the "cam position sensor" once the truck is warmed up and shut down for like 10 minutes the sensor will not act up anymore. if i just start the truck and run it, even once it is up to tempature it will act up. but if i shut the truck down for about 10 minutes, it goes away. is there something else that could be causing this? thank you

 

Did you get an OEM CPS or maybe something from an auto parts store? There's lots of discussions regarding this in the 7.3 forum. Some say the aftermarket CPS units have not worked right for them and swear by one of the OEM versions.

 

i got this sensor from napa. ill check out the 7.3 forums, thanks

 

Did you disconnect your battery when you installed it. I've heard that you need to disconnect the battery for aprox 30 min to reset the computer so it re-learns the new sensor.

 

i didnt disconnect the batteries, but i read somewhere to pull the #9 fuse under the hood? can i still disconnect the batteries now, will the computer recognize the new sensor?

 

also should i remove the sensor and coat it in vasoline? i only coated it in oil before inserting it into the motor. thanks

 

You don't need to disconnect the batteries. If the CPS is good then the PCM will see the tach signal and everything will be fine.

If you want to put vaseline or di-electric grease on something, it goes on the rubber gasket at the plug connector. This helps provide a better seal that will keep moisture out of the electrical connection.

And as Ken originally said. Too many problems with the aftermarket CPS from places like NAPA etc. Stop by Ford and you should be able to pick one up for around $25.

 

Moved to the 1999 - 2003 7.3L Powerstroke Diesel forum.

 

That could be an issue. From what I heard, either get them from International or Ford.

 

Stay away from the aftermarkets. Seen too many of them have issues. Make sure the code reader you are using is PSD compatible. If not, it may not even be reading the codes right. Your problem does sound like a CPS, but there could be other things that cause it.

 

Here is a good link for you that will help you know the difference between different CPS sensors.

Black CPS proves to lower PERDELS again

 

where can i pick up a "black" cps? from a ford or international dealer?

 

dont think you can get black one from anyone other than clay at riffraft or bob at diesel orings

 

Clay has them and his link is in my signature.

 

Flip a coin.

Heads Dieselorings - Tails Riffraff

Dieselorings Black CPS

Riffraff Black CPS