Trouble shoot a engine code
03 Dodge Ram 1500
02-21-2010, 09:26 PM
I have a 2003 Dodge Ram 1500 4.7
The code is PO440
I have been told it the gas cap. I just want make sure that is the problem. I already fix the canister tank one of the hose was cracked.
Please help!!! Just want to know if I'm doing the right thing.....
The code is PO440
I have been told it the gas cap. I just want make sure that is the problem. I already fix the canister tank one of the hose was cracked.
Please help!!! Just want to know if I'm doing the right thing.....
hundahunta
02-22-2010, 12:25 AM
evap purge system performance......there can be many problems.....bad purge, open wire in the ldp switch, no vacuum at the ldp, etcccc....but I have replaced many of leak detection pumps to fix this problem...faulty switch inside of the pump...
Chris Stewart
02-22-2010, 09:11 PM
Here's an interesting thread,
http://www.automotiveforums.com/vbulletin/showthread.php?t=953294&highlight=p0440
http://www.automotiveforums.com/vbulletin/showthread.php?t=953294&highlight=p0440
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