Engine Stalling

[bleeding_blue]

For the past several months I've been experiencing an intermittent engine stall problem with my '02 F350. At idle the engine will stall completely requiring a re-start... on the highway the engine stalls for a split second and continues running, which shocks the driveline and causes the truck to 'buck'.

The problem seems to be moisture related as it usually happens on rainy days. I've sprayed all the sonnectors with WD-40 and applied dielectric grease to the ECM conector, but the problem is still there.

Has anyone else experience this kind of issue, or have an idea of which connectors might be most sensitive to moisture intrusion?

Thanks fo rthe help... the stalling is really annoying, and my GM loyal friends love to poke fun if they're in the truck when it happens.

[SCUFFY828]

if this is a 99 or 2000 model, better look around the pcm on the inside , they were bad for the windshield to leak in to the inside and get the pcm wet

[bleeding_blue]

Thanks for the suggestion... I'll check for water leaking in on the PCM next time it happens (probably tonight based on current weather conditions). My truck is a 2002, but who knows... the windshield seal could have a leak.

[scoobywrx05]

When was the last time you changed the CPS? Do like scuffy said and check the inside of the pcm. I've also heard of that happening.

[Quickhorse]

Originally Posted by scoobywrx05

When was the last time you changed the CPS? Do like scuffy said and check the inside of the pcm. I've also heard of that happening.

I had to have my windshield resealed b/c it started leaking but luckily I caught it before it did any damage. Ford did just issue a recall on 1.8 million 7.3's from 1997-2003 for the cam positioning sensor (CPS) failure causing your exact symptoms. Here is the link below.

General Article Detail Page - Ford


There are more adds about this in news articles.

[bleeding_blue]

thanks for the feedback guys... I thought about the CPS when the problem started, but figured it wouldn't be moisture sensitive if it was a bad CPS. I will definitelty have the dealer change CPS anyhow. I've had the truck for a year, have put 45k on it during that time, and I haven't changed the CPS.

Have you guys tried using the International CPS to replace the Ford part? I read that the international part is better.

[Jmaccal]

My 01 Exc. did the exact same thing only in the rain. I replaced the CPS and that fixed it.

[bleeding_blue]

That's good news... hopefully a new CPS will fix my problem as well. Maybe the new CPS will improve my fuel economy as well... lol.

[ebbnflow]

I'm having the same problem on my 02 F250 CC SB 4x4 with 130k. Thanks Quickhorse for letting us know that there is a CPS recall out there. Ford forgot to tell me (LOL). Made an appointment with Ford for tomorrow to replace my CPS. I hope this fixes it (Fingers Crossed). Intermittent problems are the worst.

[bleeding_blue]

Got the CPS swapped out... now it's just a matter of waiting for a rainy day to see if the stalling problem is fixed. I hope the CPS they swapped into my truck is more robust than the one they removed. Worked in engineering at International for 5 years, and never heard of CPS issues with the T444E. Ford must be sourcing their own sensor.