Power Stroke Skipping & Shaking
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New User
Joined: May 2003
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Power Stroke Skipping & Shaking
My 94 powerstroke has 82000 original miles. It runs perfect one minute and then skips and shakes the next, then it clears up all by itself.
Ford dealer charged a ton & didn't fix a thing!
Searching for anyone that may have experienced the same problem.
Thanks
Ford dealer charged a ton & didn't fix a thing!
Searching for anyone that may have experienced the same problem.
Thanks
Posting Guru
Joined: Feb 2001
Posts: 1,465
Likes: 2
From: Indianapolis
Power Stroke Skipping & Shaking
If you don't have any codes in your computer it is probably one or more bad injectors. The early injectors (before 99.5 model year) were prone to galling between the barrel and sleeve.
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New User
Joined: May 2003
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Power Stroke Skipping & Shaking
Thanks Joe, I have a couple more questions if you don't mind... The dealer changed the processor because it was not giving any information to the scan tool. Even after replacing the processor it still does not give any information -- ERROR -- is all any scan tool is picking up.
One shop said the "check engine" light should stay on until the engine starts, and it is only coming on for a split second and not staying on until the engine starts. They said I probably have a wiring problem, but it may be unrelated to the engine problem.
Injector? Is there any way to check these without pulling them out?
Thanks again for any advise!
One shop said the "check engine" light should stay on until the engine starts, and it is only coming on for a split second and not staying on until the engine starts. They said I probably have a wiring problem, but it may be unrelated to the engine problem.
Injector? Is there any way to check these without pulling them out?
Thanks again for any advise!
Posting Guru
Joined: Feb 2001
Posts: 1,465
Likes: 2
From: Indianapolis
Power Stroke Skipping & Shaking
Sounds like there is something wrong with their scan tool.
Their scan tool should have a program to do a cylinder contribution test but this test is done with the engine running under a no load condition, so unless there are one or more cylinders that are contributing significantly less than the others, it will show OK (they could be all contributing about the same but not enough when the engine is trying to make power).
Their scan tool should have a program to do a cylinder contribution test but this test is done with the engine running under a no load condition, so unless there are one or more cylinders that are contributing significantly less than the others, it will show OK (they could be all contributing about the same but not enough when the engine is trying to make power).
