Cox Racing Posted September 19, 2016 Share Posted September 19, 2016 79 Subaru GF project car. Intermittently car will die and no fuel is observed in float chamber. Also at times can turn off and then restart and all available fuel in float chamber is consumed and stalls. Although fuel pump is heard, removal of supply line at carb and no fuel. Have 11.40-11.70 volts going to fuel pump. Allow car to sit for 5-10 minutes and fuel available in carb and runs until observed again? Is there a filter in gas tank that could be progressively clogging and then "releasing" contaminants or fuel pump bad? Quote Link to comment Share on other sites More sharing options...
Grisezd Posted September 19, 2016 Share Posted September 19, 2016 There was no filter in my 78 tank. This might sound nutty, but if your tank is tight and the vent is plugged it might keep a weak pump from pulling against a vacuum. Take off the gas cap and try it. Also, try pushing low pressure air back into the tank through the fuel line (rearward of the tank). Quote Link to comment Share on other sites More sharing options...
Wiclipse95 Posted September 20, 2016 Share Posted September 20, 2016 I was having the same issue a few months ago, I replaced the fuel filter in the top left corner of the engine bay ($3). It did not fix the issue the first time arround so I disconnected the rubber hose from the front of gas tank and used a compressor to blow out the fuel line (towards the front of the car) and replaced the fuel filter again. There was a bunch of build up that blew out, (make sure you have the fuel filter under the hood detached and line free to purge). That did seem to fix the issue at first however a week later I was travleing to Avon (about 30 miles away) and my Brat flooded out while driving. She started back up roughly and hour later and I took her back home. Since then. Rebuilt and rejetted the carb and have had no issues. Just so you know there is no filter in the gas tank on the first gens. The fuel pump is a good place to start as well, when you turn the key to the on position you should here rapid clicking. Similar to the sound you here when typing on a iPad or smart phone. If your not hearing that noise you probably have a bad fuel pump or poor connections to the fuel pump. Good luck, keep us posted Quote Link to comment Share on other sites More sharing options...
Cox Racing Posted September 21, 2016 Author Share Posted September 21, 2016 Appreciate the information. Bad Fuel Pump and bad "new" Alternator. Got her running like a champ now! Quote Link to comment Share on other sites More sharing options...
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