need help with cel
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need help with cel
P0455 (M) Evap Leak Monitor Large Leak Detected A large leak has been detected in the evaporative sysem
P0442 (M) Evap Leak Monitor Meduim Leak Detected A small leak has been detected in the evaportive sysem.
Can some one help me trouble shoot these codes i do not have a clue as to were to start to even look for these problems
should i start with maybe replacing the gas cap any and all help would be greatly appreciated and thanks for the help in advance the truck is 00 quad cab with 4.7
P0442 (M) Evap Leak Monitor Meduim Leak Detected A small leak has been detected in the evaportive sysem.
Can some one help me trouble shoot these codes i do not have a clue as to were to start to even look for these problems
should i start with maybe replacing the gas cap any and all help would be greatly appreciated and thanks for the help in advance the truck is 00 quad cab with 4.7
Professional
Joined: Oct 2007
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RE: need help with cel
I'd check the hoses first. The hose map should be on a sticker under the hood. The charcoal canister could also be the problem. It is under the truck on the left frame rail on my 04 4.7. Another thing could be the purge selenoid. I'm pretty sure it is behind the battery on yours.Under your battery tray is a leak detection pump. If you have one, when you first start your truck, itpressurizes the EVAP system, and if it can't the PCM will throw a code. The hoses to that may be cracked. I'd check hoses first.I used to have a habit when my tank was full and the gas pump clicked off, I'd try to force as much more as I could in. On a different make truck, the fuel tank rollover valve in the top of the tank failed without me knowing it. I had just gotten gas, then decided to go 4 wheelin. I was going at extreme sideway angles, and the fuel leaked through this valve flooding the charcoal canister.I had a real mess. I now just round off to the next cent after the pump clicks off. Good luck on your dilema.
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Joined: Dec 2007
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From: Alabama
RE: need help with cel
To make this alittle easier, Dakotas and Durangos have two common places for EVAP hose failure. Look beside your battery and you will see some hoses connected with a plastic fitting with a green cap on it. The other place to check is the hoses that go to the charcoal canister which is located just forward of the fuel tank under the vehicle. Check those hoses for any cracks. With a medium and large EVAP code, the cracks should be easy to spot. If you find any that are cracked, you can replace them with regular fuel line.