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Discussion Starter · #1 ·
I know I've read about this before but why does the 4.9 have such a funny idle? For those of you with this engine you know what I'm talking about.
 

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Huh? Mine sounds perfectly normal.
 

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ummm, lack of maintence. I dunno, but i have had some that are perfectly smooth and others look like they have a strip cam in them.

Its just a matter of cleaning all the connectors, rebuild the dizzy and grease, check all the sensors.

Just get out a piece of paper and go over everything basically. Should cure the prob if not its haunted
 

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Discussion Starter · #7 ·
lol. i didn't mean it was horrible, just kind of lopey. I've had 2 trucks with the EFI 4.9 and they both idled the same way. Both in pretty good shape and the everything working well as far as I know. Maybe I'm just weird.
 

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My 83 had a lopey idle at 320K miles, but then my rod and main bearings were down to the copper. 15W30 can keep anything alive for awhile.
 
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