Has codes 442 and 455 .Does anyone have a idea where to start i replaced the gas cap .Checked for disconeceted or broken vacum lines . Cant seem to find the problem .
2006-09-14 10:46:21 · 2 answers · asked by none 1 in Cars & Transportation ➔ Maintenance & Repairs
442 is a small leak detected. 455 large leak detected. look around all vac. lines especially around the eng. trans area. they get hot/cold repeatedly and eventually crack. the fuel pump/sender seal on top of fuel tank can cause this also. has the fuel pump been replaced anytime recently? this could be it.
2006-09-14 10:57:15 · answer #1 · answered by mott the hoople 4 · 0⤊ 0⤋
Actually, it's not the hot/cold that makes them brittle, it is the presence of unleaded gasoline fumes. It makes the rubber vaccum lines brittle and they crack. The old leaded gasoline never did this kind of damage. Vaccum lines in a car will last about 15 years. I'm thinking yours are probably OK, could be the EGR valve. Or maybe there's a vaccum line that came unplugged. Do a thorough visual, you can unplug the EGR and put a screw in that vaccum line. Is it running funny? If it tries to die at stop lights, it could be the EGR. If it idles high when started, then probably a vaccum line unplugged. Good luck.
2006-09-14 18:52:56 · answer #2 · answered by jeff s 5 · 0⤊ 0⤋