Question about 1999 Pontiac Grand Am GT

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Fuel is air locking when pumping

When i put gas in it comes back up the tube and kicks the pump off

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It happens on a lot of cars the spring on the control door wears out. i wish i could help more but the only way to fix is to turn the actuall pump upwards and let the fuel flow evenly through the hose

Posted on Oct 24, 2012

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6ya6ya
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Posted on Jan 02, 2017

bunnydawg
  • 5158 Answers

SOURCE: My fuel system is vapor locking.

I suspect this is what is wrong.... (see picture) the sock has caught onto the bafflle inside the tank....

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Posted on Mar 18, 2009

rcates 82
  • 18 Answers

SOURCE: 1995 Bonneville Missing during acceleration

NEED NEW ECM

Posted on Jul 12, 2009

  • 811 Answers

SOURCE: 1997 grand am no Spark and fuel pump not kicking

check fuses , circuit breakers, relays

Posted on Sep 12, 2009

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Have a 2004 mustang. I can only only put a few cents at a time when trying to put gas before it spits back out


Sounds like vent tube is not operating probably. When gas goes in air in tank needs to go out. When air can't escape its keeping gas pushing up and kicking pump off.

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Most cars today have a vent line coming out of the tank to let air escape as you add fuel, it usually terminates right at or near the filler cap. If this line gets kinked or clogged, the air can't excape as you fuel and the air push back is just like the tank is full, which is why the pump keeps cutting off.

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My Chrysler 300m 2002 wouldn't start found out the battery was corroded and replaced the battery tried to start it but it wouldn't turn over it seems it wants to start but want thought maybe to put some...


Easy way to find out. #1 take some starting fluid, a very short 1 or 2 second squirt into the air intake tube by the air filter. see if car starts. if it does it could be the pump or the fuel pressure regulator or maybe your not getting spark to the coils. #2 take a big rubber mallet and while some turns the engine over whack the bottom of the gas tank real hard (Rubber mallet). if the pump kicks on and the car starts then you have a bad fuel pump. #3, find the schreader valve on the end of the fuel rail, turn key to on position, press the schreader valve, if gas flies out then your pump is working.

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Hi I am working on a 1991 nissan pathfinder and it is not getting any gas. I put a new fuel pump and a new fuel filter and changed the fuel pump relay, But still no gas. you can hear the pump kick on. and...


Disconnect ( or at least loosen) the fuel line as close to the engine fuel delivery system as you can and see if there is fuel pressure. You may have a vapour lock. If you do get pressure how much ? Is it sufficient to supply your requirements. A "new fuel pump" does not always mean a "good fuel pump" - from experience!!! If you do not have fuel at the engine work back to each fuel line connection to were there is fuel pressure if at all. I am not a Nissan expert but the principles are the same for all. You do not say if it is fuel injected or carburated. FI requires higher pressures than carbs. Hope this helps. Let me know how you do in your efforts. Thanks Good luck.

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Ran out of gas, put gas in it, changed fuel filter and I can hear the fuel pump kick on, but it still won,t start.


Possible that there is an AIR LOCK and so you will need to bleed off the air within for the fuel to flow into the pump. So remove the fuel line and allow fuel to flow or blow into the fuel tank.( must **** out the fuel )
once the fuel comes over the pump will hold on.
Next time make sure that the tank does not run dry.

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1 Answer

Someone put sugar in my 1997 plymouth voyager gas tank. How do I remove the gas tank to clean it ?


TO REMOVE FUEL TANK YOU FIRST RELIEF FUEL PRESSURE.THEN YOU RAISE THE VECHICLE AND SUPPORT ON JACK STANDS.THEN YOU DRAIN FUEL OUT OF FUEL TANK.YOU CAN GO TO ANY AUTO PARTS STORE BUY A SIPHON.DONT SIPHON GASOLINE WITH YOUR MOUTH.SWALLOWING GAS AND FUMES COULD BE FATAL.WHEN ALL FUEL OUT THE FUEL TANK.REMOVE THE FUEL FILLER.DISCONNECT THE ELECTRICAL WIRING TO FUEL TANK.THEN DISCONNECT ALL THE HOSES FROM THE FUEL TANK.PLACE A LARGE FLOOR JACK CENTER OF THE FUEL TANK.PLACE A PIECE PLY WOOD OVER FLOOR JACK LIFTING SADDLE TO KEEP FROM PUTTING A HOLE IN FUEL TANK.START RAISING FLOOR JACK UNTIL SADDLE TOUCH GAS TANK JUST ENOUGH TO HOLD TANK IN PLACE.THEN YOU REMOVE FUEL PUMP SUPPORT STRAP BOLTS DROP FUEL TANK DISCONNECT FUEL SUPPLY AND RETURN HOSES AND DISCONNECT FUEL VAPOR LINES FROM PRESSURE RELIEF ROLLOVER VALVE.THEN REMOVE TANK.IF HAVE TROUBLE REMOVING FILLER TUBE AT GAS TANK SPRAY WD40 AROUND WHERE FILLER TUBE GOES TO GAS TANK LOOSEN THE CLAMPS AND USE LARGE VISE GRIPS WORK FILLER TUBE HOSE AWAY FROM FUEL TANK SPRAY WD40 INTO IT SLIDE ON OFF.WHEN YOU GET FUEL TANK OFF USE A FUEL PUMP MODULE LOCK RING TOOL TURN LOCK RING COUNTERCLOCK WISE.IF YOU DONT HAVE THE FUEL PUMP LOCK RING TOOL.YOU CAN USE A HAMMER AND BRASS DRIFT OR A PLASTIC DRIFT DONT USE NO METAL DRIFTS OR PUNCH YOU WILL MAKE A SPARK AND HAVE EXPLOSION FROM GAS FUMES BE EXTRA CAREFUL.REPLACE FUEL PUMP SOCK AND FUEL SUPPLY LINES IF STOPPED UP AND REPLACE FUEL FILTER.PUT EVERY THING BACK IN VISA VERSA.IF ALL GOES WELL. GO TO AUTO PARTS STORE BUY A GAS CAP WITH A LOCK SO WHO EVER PUT SUGAR IN YOUR GAS WONT BE ABLE TO TRY IT AGAIN GOOD LUCK.

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1976 gmc 350 - no fuel getting to carb, I disconected the fuel line from the carb & cranked - nothing came out but I could heaar the pump working and feel some air being blown out - yes there is fuel...


yes it is probably the pump or a problem in one of the fuel lines but i would bet more on the fuel pump or suction line into the tank. If you can take the line off going to the tank put it in a jug of gas and see if the pump will pump it to the carb or the engine will run.

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1 Answer

Gas pump keeps shutting off when fueling


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