Engine loping and rough idle
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Engine loping and rough idle
Ok here's the deal. When at idle my engine idles rough, and when I hit the throttle and back off, it will lope and will take a couple seconds to get back to a normal idle. Any suggestions on what may be the cause, and has anyone else experienced a similar problem? Thanks guys
Last edited by BadFord99; Nov 25, 2005 at 03:19 PM.
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Well as it turns out, it didn't completely cure the problem. It is a little better, but started up with the rough idle again. The loping isn't as bad as it was, but this is still a nuisance, and only does it as the rpms are returning to idle. Any more ideas while I am in the process of getting this think licked would be greatly appreciated.
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From: Utah for now
Originally Posted by Orezona
Is the lope at a cold start up and what is the outside temperature?
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my truck idles a little rougher sometimes since i installed the predator tuner... some tunes are worse than others... i think i have a cps going bad though... so this may be contributing to the problem... it isn't so bad that i can't live with it, but i am planning on changing the cps soon anyway...
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From: Utah for now
Originally Posted by slc10844
Have you tried removing the "juice" and running the stock
program?
program?
Last edited by BadFord99; Nov 27, 2005 at 07:50 PM.
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Thanks for all the info; I will look into the possibility of the ICP sensor going south on me. If I can't figure this thing out, might have to break down and find a shop that knowledgeable with the 7.3 PSD. Thanks again guys.
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Well, looks like I have resolved the issue. I cleaned my IPR, replaced the ICP, and for good measure, swapped out my CPS, and now she runs like a champ. Also seems like she gained a few ponies that went missing. Thanks again for all the info.
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Originally Posted by BadFord99
Well, looks like I have resolved the issue. I cleaned my IPR, replaced the ICP, and for good measure, swapped out my CPS, and now she runs like a champ. Also seems like she gained a few ponies that went missing. Thanks again for all the info.
What is IPR? And i am starting to have similar issues i think...idle is rougher.....not real smooth as before.seems to be constantly moving a little but never moved at idle before..and can hear it surge each time a little...and seems to be constantly down on power throughput operating temp and range.....almost like its not hitting on all 8....but obviously not that extreme but i hope you get what i am saying. And very rough on start ups. Sound similar?