O-Ring at fuel tank

[amo1dun]

89 Path auto

 

Kind of silly question...

 

swapped pumps and used a sending unit from a 95 cuz the sender was blowing the pump fuse..Noticed that the o ring stretched and isnt sealing the tank well so.....

Does anyone know if a leaking o-ring at the fuel tank can cause driveability problems..Symptoms are..Bogs out and wants to stall(never does tho), also hesitation, engine drops rpm when throttles steady ?? ECU doesnt throw any codes, Seems real bad at partial throttle but WOT seems ok for the most part.

 

thanks for any insight

[Tungsten]

The symptoms of a leaking O-ring are:

Smell of gas!

 

The bugging out at partial throttle part is sensor related. Clean your MAF sensor and possibly replace the O2 sensor and the coolant temp sensor.

[amo1dun]

The symptoms of a leaking O-ring are:

Smell of gas!

 

The bugging out at partial throttle part is sensor related. Clean your MAF sensor and possibly replace the O2 sensor and the coolant temp sensor.

 

I thought maybe it could have something to do with fuel pressure...thanks

[adamzan]

Get a new o-ring, and unplug the 02 sensor and see if it runs better.

[amo1dun]

theirs 2 connectors right? unplug both?

 

one with a 3 wire lead (red white blue) and then the one with 1 lead ( black) right?