the mechanic says I need something like a NVLD or something like that what is that
Chrysler Q&AAsk Your Question
2004 Chrysler 300M Question: got code p0442
Answer #1Cory Langner June 30, 2010, 15:10Technician
P0442 - EVAP System Small Leak Detected. The NVLD stands for Natural Vacuum Leak Detection. Sounds like they are saying you need a new NVLD vacuum switch. There are a handful of reasons this code can go off all of which relate to emissions. Loose gascap, A small leak/hole in a fuel vapor hose/tube, and so forth. Generally they'll do a smoke test to find where the leak is coming from, but the easiest thing to check first is the gas cap.
You can find more information at http://repairpal.com/OBD-II-Code-P0442. Hope this helps.
Answer #2mastertech6371 June 30, 2010, 17:19Master
he means a leak detection pump. very common failure on chrysler products. you can test through a scan tool. the part is about 149 and the labor is 1 hour.