I removed the PCV valve and it rattled, but it was so dirty and I decided to clean it with WD-40. I installed it again, started the engine and the idle speed seems to be find. I will dirive the truck on weekend to test how it works. I will look for the "curb idle" screw. I have seen a solenoid with a nut that touches the acelerator lever. Is there something else?
I use this suburban on weekends and to travel with my family, because of the fuel consumption. I get 7 MPG (city) and 12.9 MPG (freeway). It is the same gasoline or LPG, but here in Mexico gasoline is $2.40 USD/GAL and LPG is $1.78 USD/GAL. That s why I use LPG. However I have always been looking for a way to improve MPG in miy truck:
It has a KYN cotton filter, 2 mufflers, one for 4 cilinders and another for the other 4, the two lines conected with a line behind the transmission. I also installed two magnet savers in the LPG line.
I have read that I would get a 30 % better fuel MPG, changing the 3 speed transmission for a 4 speed transmission.
What do you think?
I say hello from the beautiful beaches of Mazatlan, Sinaloa, Mexico.
Saturday, February 6th, 2010 AT 11:28 AM