Air Leak????

[bwoods001]

I got a surge at idle i think a may have an air leak due to the fact that i can press the primer on top of the filter assembly with ease after running the truck for 10 to 15 min then letting it idle Is this normal????? THANKS

 

[bwoods001]

Air Leak

I have already replaced the primer screw and the whole (water check?) fitting on the bottom of the filter

 

[JoshH]

If you don't have a lift pump, you should be able to easily push the primer pump on top of the filter head. It is under vacuum. Surge at idle is usually a FPR going bad or sticking. Try running some fuel additive or 2 stroke oil and see if it gets better.

 

[bwoods001]

Thanks i just wasn't sure. I am not throwing any codes is that normal???

 

[bwoods001]

the truck is a 2005 3500 4x4 if that makes any difference

 

[Tony Burkhard]

The FPR normally will not throw a code until it is really bad. Does your truck try to push through the brakes at a stop light?

 

[bwoods001]

no not really just a slight surge no pushing though. It does it the worst in park idling

 

[Tony Burkhard]

Need to hook up to a scanner to see what the FRP is doing or like stated above, try some good oil in the fuel to see if it helps.