Hey guys,

Well I picked up an'83 GSL the other day and knew it had a hesitation issue but things have escalated over the last week or so since my test drive.

I fire the car up and start driving and it feels just fine, I get maybe half a mile and it starts dieing on me (can't keep the revs up, feels like there is no fuel), so I pull over and cut it off. After waiting a minute or so, it fires right back up and I can continue on my merry way for another half mile or so. It is really strange in that the car always run fine right when I crank it up.

First thing I did today was replace the fuel filter, but no luck there. I had a similar problem (although not as bad) on my other '83 and it turned out to be the shitty autolite plugs and wires on the car. My "new" GSL is also similarly equipped with shitty autolite plugs and wires. My next plan of attack to replace those with the standard NGK stuff.

The other option is that it is still a fuel problem. My old filter was pretty nasty so it was good that I replaced it but that didn't fix anthing. The gas tank is probably pretty nasty the car sat for a year or more about 2 years ago before someone bought it and there is a fair amount of surface rust under the gas cap. I'm thinking this could be part of it, but since the fuel filter is brand new I don't really think this is the problem.

So what does everyone think, replace the plugs and wires with NGK stuff and see what happens or start replacing the other components of the fuel system (pump, tank, etc)?

Oh yeah, its good to be back in a 7, wasn't the reading the board without one parked in my driveway

 

Sounds like it's time to drain and flush the tank, and pull the fuel pickup out. Check it for a clogged or split screen. I had one that the screen split and the pickup tube itself was plugged with rust. Allowed just enough fuel for idle, but no more.

 

thats what i was thinking, the screen in the fuel pickup. I had the same problem with a Humvee at work, we would prime it and it would provide just enough fuel to fill the lines and filter, then shut off once that fuel was used up. Turns out the screen sock on the fuel pickup kept collapsing, replaced it and it been running fine since.

 

Could be in the pickup, or a clogged line somewhere else. Have you pulled the fuel line from the carb, and checked the flow? This could also be a fuel pump that is about dead. Most certainly sounds like almost no fuel is flowing.
Check the flow from the output side of the pump, if the flow is good there, but not at the carb, try blowing some air back thru the line, with it discontected at both ends.

 

Glad to see you back.


Maybe a PingPong ball in the Tank????

could be a weak fuel pump. Draing the float bowl slowely, Can you change the Distance by getting on it hard from the start?