Greets, my first post here. I'm not a mechanic, but I have a good one. 2003 FJ100, original owner, 269K on the clock,runs great.
Been trying for some time to solve an emissions leak. When I fill the tank and immediately hit the highway and use most of the fuel, no problem. However, when I fill the tank and soon after park in the garage, the next time I drive about 4 miles, the check engine light and two others come on. It's usually P0442, small leak, or P0456, very small leak.
I've bought a number of gas caps, both OEM and after market with no results. I have had smoke tested and the only place he can see a leak is around the cap. I have replaced the charcoal filter twice and even replaced the filler neck, all to no avail. The issue is worse in warm weather.
My mechanic is all out of ideas. Any suggestions are appreciated.
Been trying for some time to solve an emissions leak. When I fill the tank and immediately hit the highway and use most of the fuel, no problem. However, when I fill the tank and soon after park in the garage, the next time I drive about 4 miles, the check engine light and two others come on. It's usually P0442, small leak, or P0456, very small leak.
I've bought a number of gas caps, both OEM and after market with no results. I have had smoke tested and the only place he can see a leak is around the cap. I have replaced the charcoal filter twice and even replaced the filler neck, all to no avail. The issue is worse in warm weather.
My mechanic is all out of ideas. Any suggestions are appreciated.
