Like the title suggest, sometimes my car will stutter while just cruising at part throttle, mostly around the 30-50mph range. I have done some research and could this be my Evap Purge Solenoid?

The stutter is only very minor, but noticeable enough to feel. I WOULDN'T call it bucking. I used to have the K&N SRI, but now just Drop-in. Was thinking about maybe cleaning the MAF with some CRC MAF cleaner also.

Please give me your input. Thanks Much.

**edit, only had one CEL 6mo ago, random misfire and NONE since, always make sure my gas cap is on correctly as well.

ALSO, and pretty random could this also be the reason why its such a pain in the A** to fill up the gas tank sometimes, the nozzle is always getting tripped and I have a hard time filling it up. Car is at a half tank and it trips the nozzle right away. I know there is the rear "vent" solenoid but idk if that would affect filling?

 

In for answers.. Have the same issue, had it on my previous ss/tc as well

 

same. 2010 SS/TC just exhaust and HPT tune. Haven't had time to log it.

It is random but only when cruising.

 

Idk but i think i felt it at one point but you could just be going to low of rpms and the gear you are in?

do you check what all numbers are when it happens, ie: gear: rpm: speed:

 

I remember on my old 04 GTO, the filling up thing where it would trigger the auto-shutoff a the nozzel was caused by the vent solenoid gone bad (like the ones in the rear of our SS's).

I know these car throw a code for that if it has gone bad, but maybe it hasn't reached the number of key cycles or parameters for this? Does it also start hard after a fill-up?

Double check your plugs and clean your MAF. Reset the codes and see if the problem comes back. If so, check the rear vent solenoid to make sure it's working within specs.

 

Yea, mine does it when I lug gears. I also feel it a lot more with the TTR Stop Mounts. Grab a lower gear and I bet it goes away.

 

Turn it on a 45 degree angle and fill. This happens on mine on occasion if I hold it straight up and down, the angle fill solves the problem every single time so I'm just in the habit of tipping it. I had the same thing with my 2.2 as well so I wouldn't say this is an issue leading to the hesitation.

 

Purge solenoid...

 

try cleaning the maf first

 

Mine has had the same issue for quite some time. It showed up shortly after I put my Dejon SRI on. Perhaps I dirtied the MAF taking it on and off?...It doesn't bug me enough to check but perhaps I'll do some testing this week with some MAF cleaner.

 

I'm always aware of the what gear i'm in, kinda **** about it. This is cruising in 4th at 2.5 maybe so not LOW and luggey.

I never get any codes and the car never starts hard, its just random.

 

I would start with cleaning the MAF, then.

 

I had same thing slight bucking or jerking only minor at cruise right around 2-2.2k rpm was very specific. Mine eventually went away but I never really fond a solution.