2004 Jeep Grand Cherokee Q&A
2004 Jeep Grand Cherokee Question: I got the engine light on and I got two codes p0455 and p0442 what can I do?
It was happened might be 6 months ago but I didn't mention that until recently I bought a diagnostic test stuff and check it and found it is the emission or something problems, what can I do because I see the test method on the internet is extremely strict and annoying. - Sebastien
Testing the evap system is the BEST way to get it right without wasting time and money on guesses. - ziptie12
do the right thing and test properly or get it done to save time and money - globalhelper