Howdy Volvorados, I want to either treat or flush my fuel system. The 85 240 wagon I just bought had about 1/2 tank of fuel, but the car sat for a long time - only being started occasionally. I don't know how old the fuel is, I usually give it 6 months life and it could be that old. I am wondering if I should drain it, or just add something like SeaFoam or some other fuel additive.
I want to change the fuel filter (external) as well, but not sure what to do about the fuel.
Also, symptom dujour is when I start the car it fires right up, the engine hums a bit until warm (like belts rubbing or maybe vacuum). Then, when I start working the accelerator it starts choking out. I can pump the gas pedal, get it idling strong- then when I accelerate the pedal it starts dying.
I am thinking fuel first, then maybe plugs and wires for spark, and lastly air intake.
Thoughts?
Jamie