Cutting out - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 8 (permalink) Old 03-30-2010, 04:10 PM Thread Starter
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Cutting out

I was driving to class this morning when all of a sudden the engine started cutting out like I was on and off the pedal. It didn't die but got me very concerned. I didn't notice any smoke because I was looking at the tach. It would go from about 1500 to 1200 with no pedal change. Any ideas?

The truck started up just fine this morning and drove fine for my the majority of my two mile commute. I need to change the oil and was planning on doing that today anyways.

1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
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post #2 of 8 (permalink) Old 03-30-2010, 04:27 PM
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Re: Cutting out

Mine did the same with a bad CPS. Would feel just like the pedal was lifted for a second. Would make the truck jerk with little loss in RPM. CPS fixed it.

1994 F350 Dually w/Powerstroke M.T. 101,000 miles
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post #3 of 8 (permalink) Old 03-30-2010, 04:31 PM Thread Starter
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Re: Cutting out

Ok that's kind of what I was thinking too. I have a spare in the glove box thankfully. It's just a 9mm socket right?

1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
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post #4 of 8 (permalink) Old 03-31-2010, 01:45 AM
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Re: Cutting out

10mm i think.
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post #5 of 8 (permalink) Old 03-31-2010, 01:54 AM
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Re: Cutting out

It could be your TPS also. It could have a dead spot in the contacts and at a certain percentage of throttle applied it could cut out and the ECM automatically goes to idle rpm.

'95 Powerstroke 250,
4'' Suspension lift
35" Tires
Traction bars
Gauges
FPR shim
Intake
5" Exhaust
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post #6 of 8 (permalink) Old 03-31-2010, 02:08 AM Thread Starter
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Re: Cutting out

I driven the truck 6 or 7 more times today and it hasn't done it at all. In the past year, the truck has died for no reason three times. The last time was in January driving through a parking lot. Each time it has refired and everything was fine. I'm wondering if they are related.

I have a gray cps but it seems like a b*tch to get to. I'm wondering if it was just a hicup and it'll be fine. TPS also came to mind this morning too.

1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
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post #7 of 8 (permalink) Old 04-01-2010, 03:08 PM
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Re: Cutting out

cps is not hard to change 10 mm and a screwdriver to pry it out.

Blue 2012 XLT SCLB 4X4 , 38,550 miles, 3:55's & 18's Camper and Tow packages. Edge insight, Airlift Wireless compressor & Air Bag set-up, Dieslesite filter.
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post #8 of 8 (permalink) Old 04-01-2010, 05:15 PM Thread Starter
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Re: Cutting out

It did it again this morning. Weird thing is, within 100 feet of where it did it on Tuesday morning. I think my truck is cursed...

I'll be swapping out the cps tonight or tomorrow. I think someone told me a while back to use anti size on the bolt. Does it matter?

1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
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