RPM Surge - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 07-21-2008, 09:19 AM Thread Starter
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RPM Surge

1995 with AT - at about 1500 RPM there's a sudden surge in RPM's (about 500 RPMs) for a short burst (1-2 secs), almost like a downshift. It happens under constant speed, no load, no hills. It doesn't do it all the time. Sometimes it will do it at 2000 RPM. I recently replaced the CPS. There's no codes. Any ideas???
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post #2 of 4 Old 07-21-2008, 03:14 PM
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I had similar prob, but also abs light, no brake lights few other things cant remember what else, ended up being multi function switch.
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post #3 of 4 Old 07-21-2008, 03:31 PM
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do you have any upgrades (fill out your sig)
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post #4 of 4 Old 07-28-2008, 05:14 AM Thread Starter
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No upgrades to engine. Trans rebuilt at 175,000, has 275,000 now. I'm wondering if its a TC slipping?

1995 F350 CC 4X4, Auto
Mile Marker Manual Hubs
Sky Mfg - Rev. Shackle Kit
Flex-lite-28,000 Lbs Tran Cooler
No Eng. Mods yet!
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