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Erratic idle

958 Views 8 Replies 4 Participants Last post by  bozodog, 
harvey4804
Sometimes, not always, when my truck is idling wether its 10* or 100* outside the rpms jump 100rpm to 120rpm for a second then return to normal. this was happening before I did my mods (listed below) and after. If I'm at a light and I don't have a good amount of pressure on the pedal it'll jump forward. Any ideas?
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Kyrocks
I just had the same problem...changing FCA valve fixed my problem..(ordered Arson fuel pump mod which included the FCA valve)....runs better than it ever has now.
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Kyrocks
Fuel Control Actuator.....it's located on the back of the injector pump...will have a plug with a wiring harness attached....easy to change..just be sure the area is CLEAN before removing and replacing. Here's a cheaper than Dodge Dealeership source for this part Welcome to HOESLIDIESEL.COM
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Kyrocks
RAMROD2006 said:
Holy CRAP!
You need to get 6 new NGK spark plugs in a hurry before you wash a cylinder because of it not fireing.

Autozone carries them. Get the 13/16 plugs though....not the 5/8:)
Click to expand...
Sorry you chose to flame my post rather than offer constructive advice...I'm not a diesel expert ...was just offering my own personal experience with this problem...and trying to help the guy out.
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