99 Volvo s80 2.9 not taking fuel what could be wrong with it any ideas

a fuel pump work on supply and demand there is no timing on a fuel pump unless it is in the engine and works off the cam gear but 99% of fuel pump are located in the gas tank.

Vehicles have to be tested to find problems

You Know That

parts tore can say for sure but its usually in pints..4 pints to a quart..so 16 pints is 4 qts most take 6 qts or 24 pints..just to give you an idea..put 2/3rd of it in and start the car fill to level according to the stick.

your fuel filter, injectors and fuel regulator should all be checked-these clowns (sorry, mechanics) should have checked line pressure FIRST, and I might have suggested that the fuel tank be removed and cleaned after it failed the first time-n telling what is in the lines, and injectors are easy to clog. Since this is an older car, and more difficult to diagnose, it might be a good idea to look for a Volvo specialist that will diagnose the problem rather than throw parts at it.

Ermm...do take your car to a mechanic and check if the fuel pumps are runnin efficiently...lack of and inconsistent fuel supply to the engines may lead to your engine dying as you drive..i'm sure this is observed especially in cold mornings..i had that problem too but now after getting it replaced...its ok

Borrow a code reader from an auto parts store (free) and see if any trouble codes show up (the device will have instructions and is easy to use). That should give you a clue to the problem. Problem could be sensors of some kind. If no codes, could be a clogged fuel filter -- when was it last changed?

If you are talking about the blower motor fan,inside the car,look for a blown fuse,or a bad fan relay.The blower motor relay could be mounted near the blower motor,or in the relay box,look for the lables to guide you to it.If the relay,and the fan are fine,then replace the blower motor.

There are a few things that could cause fuel pressure:

1. Clogged fuel filter
2. Clogged fuel injectors
3. Bad fuel pump
4. Leak in fuel rail

You should start with the fuel filter as this would be the most common cause. It would be a good idea to check the fuel rail first, although it's less likely to be the problem if you do find a leak, it would tend to eliminate the other conditions. Best of luck.
Greg

You have to drain the fuel tank and disconnect fuel lines and blow out with compressed air. The fuel pump is in the tank take it out and spray down with WD-40. If you run the car with unlead gas it will damage the motor.

It could be just a censor in the door itself. My truck does this. Its nothing serious, just means the the censor is burnt out. I could be wrong, take it in and have someone else look at it. If you think it is a spring, try looking for it on ebay autos. You can find lots of stuff there cheaper than you will at a dealership. Then just have it installed. Good luck.