2000 7.3 shudders @ idles when warm intermittently - Ford Powerstroke Diesel Forum
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Old 10-30-2013, 05:06 PM
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2000 7.3 shudders @ idles when warm intermittently

Hey all,
I have had this problem for awhile now and it's driving me crazy. Very intermittently, the truck will miss at idle. Sometimes it's a slight miss, sometimes the whole truck feels like it's shaking when stopped. Runs the best cold and only happens when it's warm. In the past when codes are read, the #8 injector code has shown up, but then it disappears when I fix any other code that shows up with it. Took it in to Ford when I broke down on our vacation and had the passenger side UVH replaced. Drivers side has been done as well. ICP & numerous CPS sensors have been replaced. I don't see power loss really...just this dumb shudder. If an injector is bad, can it be so intermittent? Any suggestions as to where to look next would are appreciated!
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Old 10-30-2013, 05:39 PM
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Any idea as to what ICP and fuel pressure is during said event?
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Old 10-30-2013, 05:41 PM
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No. How do you get those numbers? Have to take it to a shop?
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Old 10-30-2013, 06:14 PM
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Have to set up a gauge to read fuel pressure and a shop with a scanner, or you with the proper technology, can read ICP.
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Old 10-30-2013, 07:49 PM
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id say its the cps. especially if your running the recall grey ford cps.

mine was doing this forever and i couldnt figure it out.
i swapped in the delphi cps and it is gone.
BW cps works too

i was experiencing the same exact symptoms and it drove me nuts as well.
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Old 10-30-2013, 10:18 PM
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Cool

Quote:
Originally Posted by blue99stroker View Post
id say its the cps. especially if your running the recall grey ford cps.

mine was doing this forever and i couldnt figure it out.
i swapped in the delphi cps and it is gone.
BW cps works too

i was experiencing the same exact symptoms and it drove me nuts as well.

I wish it was the CPS, but after replacing the gray recall with a BWD version (which left me stranded 2500 miles away from home only 3 months after install) and now I have the international version in. Runs just the same. But hey...got lots of extra sensors in my glovebox now!
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Old 10-30-2013, 10:23 PM
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I have read something about a screen on the fuel pressure regulator that needs cleaning once a year. Not sure if there is one on a '00...anyone heard of that?

Last edited by chugluglug; 10-30-2013 at 10:35 PM.
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Old 10-31-2013, 12:50 AM
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international cps is the same as the ford recall.

try the delphi cps. thats what im running now, been in for a few thousand miles so far and it idles great and the truck runs smooth.
you can get them from amazon for 30 bucks, or advance auto parts or napa carries them.

the screen was on OBS FPR's.

doesnt apply to us.
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Old 10-31-2013, 06:29 AM
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Have you used your wipers much with the Delphi? My engine would stall when my wipers were on with the BW...then eventually a no start.
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Old 11-01-2013, 12:36 PM
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i had the same problem with the wipers and the BW cps lol
the truck ran great but i cant swap cps every time it rains.

no wiper issues with the delphi cps. slightly less power than the BW cps but im happy with the delphi. still starts better than the ford recall cps and more power. and no more shudder and shake at idle which makes it worth it. couldnt stand the stupid misfire feeling at idle.
gifted my buddy my BW cps for a boost fooler

their is a fix for the BW cps issue,
you can put ferrite beads on the ground and shield it, which prevents the stalling with the wipers in.
but i dont have wiring diagrams so i dont know where the ground is for the wiper motor.

so id try the delphi, let us know your results.
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