OK, checked the purge valve on the engine. Unhooked the electrical connection & evap hose, blew into purge valve and no air passes through, so it is closed. So I can assume it's a problem with the vent valve (I had this diagnosed awhile back & one thing they found was the resistance on the vent valve was too high, the estimate to fix was $600 to start)?
I have found the vent valve by accessing the repair manual online. Seems it's mounted on the right rear of the gas tank behind the evap canister, very hard to see as it's mounted near the top of the gas tank. The instructions say to lower the exhaust system towards the rear of the car. Then lower (not remove) the gas tank to get access to the vent valve (there are other steps like unhooking the filler neck, etc.).
Unless you have some ideas I think I'm done. I doubt that I can change the vent valve from laying on the ground with the car jacked up, not enough room. Well It was worth a try to see if it was something that I could fix.
What prompted me to look at it was they are going to charge me another $100 to plug in their code reader again just to fix the same problem. I think that's a bit much.
Saturday, November 26th, 2011 AT 6:38 PM