So I put thesmoke to the evap system today to see if there really is a leak tripping the pesky MIL(p0455). I was really hoping to find smoke leaking from somewhere in the system, but no go. I tested the cap as well, it was good.The Snap on motus wouldnt even comunicate with the truck enough to look for values on the fuel tank pressure sensor. I guess ill just endure the lamp until we get emissions here and then leave it up to LR to fix. Anybody in PA have a LR T4 testbook?

 

Remind me what your problem is and what you have done so far.

 

MIL P0455, evap system leak major. Changed gas cap, vacuum/pressure and smoke test system, no leak found...

 

Do you have a hard time putting gas in?

 

no, full speed till i can hear it just about to climb the neck.

 

Hum....there is a valve at the carbon canister that will stick and can cause a CEL with a EVAP code, but normally when that happens you have a hard time filling the gas tank.
I suppose if that valve were stuck open it could set off a EVAP leak code.

 

i dunno, without a t4 i cant get the purge and vent solenoids to work by remote to fill it with smoke again and see it it gets past either of those points.