Help! Codes P0442 + P0455
It started out for awhile I had code P0442 only. After about a year, I re-checked and now have both P0442 & P0455. I took my van to my mechanic and he went after it using the smoke machine, first from the engine end of the system then from the filler on the tank. He found no visible leakage. This troubled us because the P0455 is supposedly a large leak.
Is it possible that something else has occurred in the system that trips these codes? We have cleared the codes they come right back on starting the engine!
'92 Plymo GV SE 3.3, R.I.P. [130,000 miles, 2 trannies, threw a rod]
'94 Dodge GC SE 3.3, R.I.P [160,00 miles original tranny]
'02 Dodge GC Sport 3.3 [145,000 miles and counting!]