95 only runs on 4 cylinders. - Ford Powerstroke Diesel Forum

 
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post #1 of 8 Old 01-14-2013, 03:33 PM Thread Starter
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95 only runs on 4 cylinders.

i bought my 95 last spring, and about once a month the truck would run on 4 cyl for about half a minute then run on all 8 again. It would be good for another month or two then it would happen again for a brief time then run normal again.

Anyways. my truck now only runs on 4 cylinders all the time. I changed the IDM with a swamps IDM. and now i don't know what to change out next. The strange thing is that the drivers side is the only 4 that fire. so the whole passenger side of the engine is dead.

Any help would be appericated.
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post #2 of 8 Old 01-14-2013, 03:35 PM
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Under Valve Cover Harnesses (UVCH) is most likely the problem. IDM probably wasn't bad.

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post #3 of 8 Old 01-14-2013, 03:56 PM Thread Starter
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Is there any way of testing if there bad or not? I have some from a 95 parts truck but I think a couple of those are bad as well.
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post #4 of 8 Old 01-14-2013, 04:16 PM
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I'm sure there is but I personally don't know how.

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post #5 of 8 Old 01-14-2013, 06:34 PM
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Pull the valve cover on the dead head. Check the connections on both sides. From my understanding they will short/burn out frequently. I lost 2 cylinders last week, popped the cover and it was quite apearent that it had bricked itself. I just scored a couple off amazon for a really good price but shipping was slow (took about 2 weeks to get here). They hadn't arrived by the time this problem happened and I picked up one from my local napa for $78.... Less then many online sources but more then what I paid for on amazon ($47). Now ill have an extra waiting for Armageddon to happen.
It's a pretty painless job except for the very back valve cover bolt on the P side.

Chad

95 ECLB 4x4
Rebuilt e4od
320k kilometers (Canadian truck)
BHAF DIY mod
Cat/muffler delete
Diamond Eye 3" downpipe
Western pro-plus plow on an ultra mount
Running Goodyear Dura-tracks on stock rims.

If you're wondering about the handle... Creekfreak... I paddle hard, steep, whitewater. It's been my online handle for about 15 years.
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post #6 of 8 Old 01-15-2013, 06:37 AM
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The UVCH can also become unpluged when they get old and stiff..sounds like your issue.....Ford has a clip so this won't happen again..its like $5
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post #7 of 8 Old 01-15-2013, 08:23 PM Thread Starter
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The rear uvch plug melted to the vc harness. Lucky I had plugs and harness from my parts truck.
Thanks for the help guys.
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post #8 of 8 Old 01-15-2013, 08:24 PM
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Cool. Easy fix!

Chad

95 ECLB 4x4
Rebuilt e4od
320k kilometers (Canadian truck)
BHAF DIY mod
Cat/muffler delete
Diamond Eye 3" downpipe
Western pro-plus plow on an ultra mount
Running Goodyear Dura-tracks on stock rims.

If you're wondering about the handle... Creekfreak... I paddle hard, steep, whitewater. It's been my online handle for about 15 years.
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