Hi Folks
I have grooved my 2005 chev venture, the complete process went quite well I would say. I capped pcv line and rerouted it over into intake line just after the mass air flow sensor.I noticed an increase in power and thottle response but no increase in fuel milage so I'm not sure where the problem is. I want to check for vaccum leaks next and if any of you guys out there know anything I should know about I would be happy. I metioned this grooving I have done to a friend of mine, he could be a possible customer.
thanks Aaron

Hi Aaron,

If this has an Idle Air Control, it's opening needs to be reduced to 1/8". Some are built into the TB others are seperate. If the idle air is routed via the base of the TB and opens out near the Groove, you would need to move it as far away from the apex of the groove as possible to optimize the groove.

Also, something Ron has mentioned in the past about regapping the plugs, approx. 20% more than what they are. There is a youtube video addressing that procedure.

You can go to Youtube and search...
GroovyServiBulletins's
or
GadgetmanGlobal
There's lots of information that can help with different situations.

Hope this helps and have a great New Year.

Karl Fortner
Tacoma, Wa.

Hi Karl
I do remember the idle air control opening in the throttle body. I had spoke to Ron over phone about it and he told me to not worry about it for now, by the way this is a 3.4 L eng. same as a lot of GM cars as well and this opening this also part of air intake manifold which makes it a more complex or harder opening to modify. I do understand the need to move this opening so the air coming through doesn't get altered from it's path, but untill I get it figured out how change this or anybody else for matter I will keep driving.
Thanks Aaron

Hi Aron!

My first groove was our 2002 Olds Silhouette with 3.4 Liter engine. I too capped off pcv and added rtv to the rubber portion that goes in the top of the intake. I have not messed with the IAC path yet, but like yourself, have not had an increase in mpg. I will hopefully be adding a few HHHN generators to the van soon and need to monitor the fuel trims when I can get the scan tool from work.

As I have time to possibly look into the IAC situation, I'll let you know.

P.S. gas went from 3.33 to 3.49 today - Go Iran!

Scott

Hey all!

Be aware! If you cap off that hose, remember it's a "TEE", the other side feeding the evaporative emissions.

Cut the hose on the PCV side and put a cap there.

The same applies to the 3100 series. The 3800 series has the PCV installed at the other end of the valve cover. There, pull the PCV valve and fill with JB or PCV or some other HC-Safe sealant and reinstall.

Great to see all your posts!

Hi Folks

Just to mention about the last post, I do remember that tee that Ron is talking about I might take pic. uload it and then maybe some of us beginners may benifit from it, as there are a lot of 3100, 3400, 3800 gm engines out there, and maybe that is an under statement. I will try to back as soon as possible.

Thanks Aaron

Take a look at pic. let me know something wrong with setup.
Thanks again Aaron