Why'd it stall?
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Senior User
Joined: Jun 2004
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From: NE Ohio
Why'd it stall?
I got stuck in some pretty nasty mud yesterday and I was getting on the truck pretty hard trying to get out, well it was at like 800-900 degree's only and out of no where it sounded like it just lost fuel and shut off. So i turned the key off and looked at the pyro gauge and it was at 1400 and i shat myself! but then turned the key and it was really only at 500 just freaked me out. But it started right back up without a problem and ran fine, then ran perfect on the way home. Just wondering what would make it do that? Kinda baffled me. Thanks
Logistics Pro
Joined: Oct 2004
Posts: 4,738
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From: FL
Well unfortunately i don't have gauges yet..so i can't tell you what my EGT's were at.... but this past winter i was on it pretty hard going through some deep snow in MA... I let off the pedal for a second, and she shut down. I was baffled also... Turned the key and she fired right back up...since then i have put in a new CPS. Haven't driven in the same conditions yet, but that might have helped. Also have you cleaned out your FPR lately? before that i had issues with random stalling and it turned out to be a cloged FPR... Might not help you, but thought i'd let you know in case it does... good luck
-Robb
-Robb
Last edited by Robbgt; Apr 8, 2005 at 08:13 PM.
New User
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My truck just shut off while driving down the road on a long trip. Took it to the Ford shop and they said that there was a TSB out that stated that there was some stalling out there and they needed to flush the transmission. I know nothing about trucks. I needed a flush anyway, so I'll see how that works.
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Originally Posted by PACO2280
My truck just shut off while driving down the road on a long trip. Took it to the Ford shop and they said that there was a TSB out that stated that there was some stalling out there and they needed to flush the transmission. I know nothing about trucks. I needed a flush anyway, so I'll see how that works.
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If the reason for stalling was the camshaft position censor or one of those other things would I get a code if I scanned it at all.
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Unless the PCM went bad.....yes,I would expect to see a code if it was something the PCM is monitoring. But it doesn't always happen as we would like. If it's something more physical like loose connections, bad connections etc. then it will be a harder problem to solve. At least until it's no longer intermittent.
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Fleet Mechanic
Joined: Feb 2004
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From: River Valley AR
A bad CPS will not always generate a code. They are not always easy to diagnose because they can be intermittent. One of the easiest ways to help narrow it down is to see if the Tach moves while cranking. No tach usually indicates a bad CPS. Everyone should have a spare CPS anyway, IMO.
I also wonder if the mud restricted the exhaust? There is an Exhaust back pressure sensor but I don't know if it would cause a shutdown....
I also wonder if the mud restricted the exhaust? There is an Exhaust back pressure sensor but I don't know if it would cause a shutdown....
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From: NE Ohio
sorry i haven't updated, never got an email saying people responded 
The exhaust was clear, i wasn't too stuck just up to the hubs After that its run fine no problems yet. I've been meaning to buy an extra CPS but haven't, i'm gunna pick one up in the next couple weeks. I put over 100 miles on the truck yesterday (alot for me) and it did fine so i think we're all good, i might have just over reved it as stated above, i was winding it out pretty high.
The exhaust was clear, i wasn't too stuck just up to the hubs
After that its run fine no problems yet. I've been meaning to buy an extra CPS but haven't, i'm gunna pick one up in the next couple weeks. I put over 100 miles on the truck yesterday (alot for me) and it did fine so i think we're all good, i might have just over reved it as stated above, i was winding it out pretty high.
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