Dog Gonnit not again....

[deftsound]

So driving to the movies tonight i noticed that my rpms were stickin when i would shift, like id shift and the rpm's would raise up about 200 rpms, sick for a few seconds then fall

When i idle the rpms fluctuate like i have some mad cam, i could of sworn i had a vacuum leak but i checked all the vacuum hoses i know of (the one that leads from the driver side head to the intake, and a couple others and didnt see a vacuum leak but it was nighttime so i could have been wrong. The rpms will drop down to about 400 then raise back up to like 1200 then back down

Now, I replaced my IAC valve about a year ago, 2 weeks ago i replaced 4 of my spark plugs along with the coils on each of those spark plugs.

Also when i downshift it backfires, its never done this before....

Im clueless...the only idea i can think of is a vacuum leak....

 

[forum155pl]

here is a cheap idea, drill a small hole in a penny and put it in the hose right before your IAC.. if your car doesnt idle drill a little bigger hole... i will get flammed for this.. but it"s worth a try... hell its only a $0.01 shot... try it..

 

[sicK96GT]

myself and topless98 used a bronze 1/2" end cap for plumbing and drilled a half size hole in it. Can get it at home depot for like $.12 also works very good

 

[deftsound]

well my intake tubing fell off, god the demolet intake is junk im sorry i wasted the money on it ive had nothing but fitment problems and its not worth the money

 

[deftsound]

Sorry mods for the obscene title i was a little frustrated

 

[Rickey_Bobby]

Vac leak.