Question about Ford Taurus

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My 2000 ford taurs ran ouy of gas and after putting gas in I pressed the valve on the top of the block to make sure it didnt have a air bubble and then I turned the key on to see if it was getting gas when I pushed the valve again only a small amount of gas spirted out then stopped but if i hold the valve stem in and try to start the car gas spirts out alot is my fuel pump gone and if so why is the gas going through when i try to start it

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Fuel pumps don't necessarily have to perform full pressure to function. But to perform within specification is what you're looking for. In other words, a fuel pump with a specification of 45 PSI could still work at 20 or 25 PSI. A lot of times when a car runs out of gas this is very bad for an electrical fuel pump. When you press the pressure valve close to the manifold the pump cannot build enough pressure in a closed system to emit a big spurt as if the pump was working to at full pressure. It still may have pressure so when you open the system by pressing in the valve a pump with 20 to 25 PSI still will make a big spurt because the pump is pushing fuel to a lower (no pressure) point, (the open valve). Check your fuel pressure with a fuel pressure test kit, you can usually borrow one from an auto parts store. Screw the connector on the same valve you tested for fuel and just turn the key to the on position. The car does not need to be started. Some vehicles do not use the valve in the tester so be sure to check both before you find you do or don't have fuel pressure. A car with low pressure will not run just like a car with no pressure. Sometimes you may have a hard start condition. If you can get the vehicle started with starting fluid the vehicle may continue running because there is enough but not sufficient fuel pressure at idle. The pump may be able to supply ample pressure at idle because pressure is relieved when the injectors are open (dispensing fuel into the cylinders) so the pump is not working as hard.

Posted on Mar 22, 2011

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If you have gas spurting through the valve when depressed, you fuel pump should probably be alright-but that can only be determined with any certainty with a fuel pressure tester. I would think it the volume of fuel was a decent amount, your pump is alright. When you try to start the car you should NOT step on the petal-that shuts off the injectors.

Does it even sound like it wants to start? Or does it just crank?

Posted on Mar 22, 2011

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===

Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.

===

MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!

RAN THIS TEST IN A WELL VENTILATED AREA ONLY!

You will spill some coolant during this air pocket purge test.......BEKIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!

===

Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat2_bing.gif open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.

If you do not see any in rush of bubbles then your thermostat may bepartially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

If you see larger bubbles surfacing after 15 minutes then should do ahydrocarbon (HC) dye test to test for potential head gasket leak.

Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost

===

A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

===
Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

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1 Answer

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Clean/check/change the thermo sensor,contact and wire.

===

Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.

===

MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!

RAN THIS TEST IN A WELL VENTILATED AREA ONLY!

You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!

===

Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.

If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.

Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost

===

A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

===
Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

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