Stalls when it rains

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Jul 27, 2005 | 10:34 PM

martman429

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Stalls when it rains

My 1999 F550 stalls in the rain. never when its dry. I am told it may be a cam sensor ?? I have a cracked air-cleaner cover. Is it more likely moisture is getting past the air-cleaner causing this stalling ??

Jul 27, 2005 | 11:45 PM

Kwikkordead

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From: Rio Rico, AZ.

Yikes! Get that air cleaner fixed ASAP. Your engine and turbo will thank you. I don't think the filter (or the lack there of) has anything to do with the stalling.
How hard is it raining when it stalls? Bucketing down?
https://www.ford-trucks.com/forums/s...d.php?t=277571

Jul 28, 2005 | 01:12 AM

psdpower

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From: Forest Hill, MD

I had a similar problem with my 99 and a new CPS fixed it. I don't know why some of them seem more sensitive to moisture then others.

Jul 28, 2005 | 04:25 AM

martman429

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Quote:

Originally Posted by Kwikkordead

It seems like when any moisture is being kicked up from the road, it stalls. As soon as the pavement starts to dry,its okay again.

Aug 8, 2005 | 10:45 AM

gt93pony

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My 2000 PSD does the exact same thing. It will go for weeks fine but let it mist a little rain and the motor will stall or miss. The check engine light will come on sometimes but as soon as the key is switched off it will reset so the shop cannot pull the code. I left the truck running so they could pull the code but they have to kill the engine to hook up the machine!

Any help would be appreciated!

Aug 8, 2005 | 01:10 PM

IB Tim

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Aug 9, 2005 | 12:58 AM

psdpower

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From: Forest Hill, MD

Get a CPS ( cam position sensor ) it fixed the stalling in wet weather problem my truck had. As I said above some CPS seem to be more sensitive to moisture then others. You can usually find them cheap on Ebay or go to your local International dealer, don't buy from Ford they are way expensive.