7.3 Powerstroke Runs Bad / Stalls In Rain

[97 golden stroker]

I would do what suffy828 said. And when you have it in you shop try to wet the cam sensor and see if you can duplicat problem.

[wildchild]

i had a simmilar problem with my 01 but it started dying going down the road when it was dry would die then i would pop the clutch and it would imediatly restart most the time it all stopped when i replaced the cam sensor cost 40 dollars at autozone with a warranty took about 10 minuits to change fixed my problem

[ktfjammer]

Originally Posted by pro1auto

Hello. We are an independent repair shop working on a 2001 F350 7.3 powerstroke. Vehicle came in with complaint of stalling and running rough only when rains or wet weather. Runs excellent when dry. We had codes P1316 IDM codes detected, P0273 cyl 5 injector circuit low, P0476 exhaust pressure control valve performance. We replaced #5 injector, passenger valve cover gasket and injector harness. Codes cleared except P0476. Had customer drive vehicle. Vehicle ran good until next time in rain. Rechecked codes, had codes P1316 IDM codes detected, P0273 cyl 5 injector circuit low, P0476 exhaust pressure control valve performance (all same codes from before). We replaced IDM and cleared codes, had customer drive vehicle again. Next time in rain problem recurred. Rechecked codes, had codes P0273, P1271, P1272, P1277, P1273, P1275, P0221. Found corroded pins at firewall bulkhead connector between engine harness and under dash harness. Replaced pins. Problem still persists. Customer has been patient but has spent $$$$ with us and has not seen any improvement. Truck is here now need resolution for problem. Please help.

Ok sorry just saw the year. Have you solved your problem yet?

[dzlover]

Had this problem on my 02 7.3 superduty. We did replace the cam position sensor on recall and I thought the problem was fixed. However, it did reoccur with engine dying out totally for a while. It did restart and I managed to drive a few blocks to the Ford service center. Problem - moisture getting into the PCM. Solution - new PCM. Truck now works better than ever with increased fuel milage to boot. Not a cheap fix though, but I'm happy if it works. No idea how moisture gets into this thing though, but it's well sealed now - I hope.

[ktfjammer]

[quote=dzlover;1492177]Had this problem on my 02 7.3 superduty. We did replace the cam position sensor on recall and I thought the problem was fixed. However, it did reoccur with engine dying out totally for a while. It did restart and I managed to drive a few blocks to the Ford service center. Problem - moisture getting into the PCM. Solution - new PCM. Truck now works better than ever with increased fuel milage to boot. Not a cheap fix though, but I'm happy if it works. No idea how moisture gets into this thing though, but it's well sealed now - I hope.[/QU

Did your truck throw any codes? If PCM was the problem you should have got some error codes. I think, anyone agree?

[dzlover]

Here's what may service invoice reads:
EEC test codes P0221 & P1670 showed up. Road test - Truck lacks power. Checked oasis - found SSM for shorted wiring harness. checked harness - all ok. Checked app sensor - ok. Tried starting truck to monitor PIDS - truck will not start. Checked communication wiring - ok. Checked PCM power and ground - ok. Contack engineering - told to replace PCM. Replaced PCM. Truck starts and drives fine now. EEC test - no codes now.

[Bryansg203]

YES I DID AND IT DID NOT MADE ANY DIFFERENCE