[Unresolved] 1989 Ram 50 Vapor Canister Info Needed

[Ram50Guy01]

Alright, so I fully closed off the ‘to tank’ vapor line. My truck ran just fine and idled perfectly, where as the carb was bone dry and the truck was unable to start beforehand. My uncle informed me the previous owner had it closed off to begin with and that he actually reattached it to the canister. Do you think it’s still something to do with the carb? Someone else said something about a possible clog in the overfill limiter tube of the gas tank.

[FMS88]

Alright, so I fully closed off the ‘to tank’ vapor line. My truck ran just fine and idled perfectly, where as the carb was bone dry and the truck was unable to start beforehand. My uncle informed me the previous owner had it closed off to begin with and that he actually reattached it to the canister. Do you think it’s still something to do with the carb? Someone else said something about a possible clog in the overfill limiter tube of the gas tank.

The overfill limiter valve may be stuck open thereby allowing vapor or fuel to flow to the cannister. Keep the tank line closed at the cannister and continue to drive it. If the carb has issues, the truck will drive poorly and mileage will be terrible. But since it seems to drive fine and if it continues to do so, there's no need to rebuild or replace carburetor. Driving it is the best test and it will reveal if something needs to be fixed or not.
Have fun.

[Ram50Guy01]

Alrighty, will do. Thanks for all the info! I’ll take a few days of driving it around and provide an update afterwards.

[Ram50Guy01]

Alrighty, will do. Thanks for all the info! I’ll take a few days of driving it around and provide an update afterwards.

Alright, so as an update. Pinching off the line has resolved my issue for now. I’m going to check the overfill limiter soon as I’ve been planning to drop the tank to clean it anyways. I’ll provide an update on what I find when I get around to it. I really appreciate the help and information.