Question about 2001 Dodge Ram 1500 Truck 2WD

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I have a 2001 dodge ram with a 5.2 liter 318 engine. i checked my code & it came up as #P 0455. the problem i am having is when you first touch the gas, it has just a little bit of hesitation & then it runs fine after that. but it is as soon as you touch the gas every time.

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P0455=EVAP Emission Control System Leak (Large Leak)

Possible gas cap fix, cheapest try first.

Check the gas cap thoroughly, the P0455 code your getting for the large leak isusually a bad gas cap.

Also check the lines on the canister tank,right underthe passengers side of the cab, there are two lines on top that will rotand fall off or get loose enough that they will cause that problem.

You can also check on the passengers side fender well under the hood andlook at the elbows on the EVAP valve that has the hoses that run downto the canister tank, chances are one of them is loose or bad.

Best to get a factory service manual to have handy through all of this. Promanuals.net has complete factory ones for around 20 bucks. Here is a link 2001 Dodge Ram Service Manual.

Posted on Sep 28, 2009

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Check the hoses going to and from the EVAP cannister. The other problem that usually causes this code is the purge solenoid. If you're not comfortable checking the hoses/fuel system for leaks have a mechanic run a smoke test. If it shows no leak then you can be sure it's the solenoid.

Posted on Sep 28, 2009

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