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I am having the exact same problem now. I checked all fuel hoses and they all looked good. I dropped the gas tank and found one of the hoses from one of the 2 mts ems (aka Roll over valves) was not connected. I inspeted the hoses. they looked good. I replaced the two main hoses and the smaller hose after the T fitting. I took it back to the smog shop and it still does not pass the Fuel evap controls funtional part of the test!!!!!!!! I will update if and when I find the solution.I am having the exact same problem now. I checked all fuel hoses and they all looked good. I dropped the gas tank and found one of the hoses from one of the 2 mts ems (aka Roll over valves) was not connected. I inspeted the hoses. they looked good. I replaced the two main hoses and the smaller hose after the T fitting. I took it back to the smog shop and it still does not pass the Fuel evap controls funtional part of the test!!!!!!!! I will update if and when I find the solution.
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I think you mean the vapor canister for the gas tank. The canister should be near the radiator in the engine compartment, or near the gas tank under the bed of the truck.
It is not recommended, the tank should be replaced. The Jeep undergoes vehicle crash studies for safety to insure passenger safety. If you modify or do patch repair on the gas tank it could cause a fire ,explosion or worse in a impact/collision.. You should be able to find a used gas tank from a salvage vendor and just inspect the tank very well before installing it.
Only careful testing will give you an answer, but check the ballast resistor on the drivers fender near the firewall and master cylinder (ceramic block ) they sometimes can do that. Testing requires using a digital multi-meter and following instructions in any decent manual. I know it's a pain to do but it avoids expensive guessing.
check foe fuel pump presure at fuel rail,,,if u have fuel pump presure check all fuses with a test light not buy sight,,could be deceviving ,look at and check to see if fuel pump relay is working if no fuel presure i,if u have presure in fuel rail ,replace the cranck shaft sensor
Sound like a connection (loos of the ground circuit) problem to the in tank fuel pump, I wouls suggest you check all the connections from the fire wall back for any loose or corroded connectors.
I am having the exact same problem now. I checked all fuel hoses and they all looked good. I dropped the gas tank and found one of the hoses from one of the 2 mts ems (aka Roll over valves) was not connected. I inspeted the hoses. they looked good. I replaced the two main hoses and the smaller hose after the T fitting. I took it back to the smog shop and it still does not pass the Fuel evap controls funtional part of the test!!!!!!!! I will update if and when I find the solution.
never mind didnt realize this was from 2009 haha
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