I installed a set of jammer 3 injectors this winter and have had good results in performance and fuel economy but since it has started to warm up I've noticed that once my truck has warmed up it has a slight surge when it is in park and at idle. As soon as I put it into drive and put a little load on the motor it stops and when it is in park it surges maybe every 5 seconds and only about 50 RPM's looking at the tach. Any Ideas?

 

mine does the same thing but I only have jammer 3 nozzles. mine also has a slight miss if you raise the rpm slowly to 1200 or so with out it being in gear I'll post a video in a few hours

 

mine does the same thing with stage 5 it goes up and down like 100 rpm its wut u get for cheep HP.

 

I agree. Some say adding a little 2 stroke oil to the fuel helps. My Mach 4's idle way smoother than the jammer 3's I had.

JD

 

sorry I did not get a chance to take a video. I decided that going to the emergency room and getting 12 stitches would be a better way to spend a sunday. I'll take one tomorrow

See I wasn't faking
http://www.flickr.com/photos/8898748@N06/?saved=1

 

Sounds like it's common, does anyone know what causes it? Hope it doesn't damage anything. taken5875 how do you like the goerend tranny, I've been checking them out in preperation for my stock failure and they sound like a good value.

 

It is great firm but not hard shifts and very solid. it makes the truck feel so much stronger even with the box off. when you put it in gear with the lower stall converter it jerks the truck and you can tell it's got *****.