Question about 2000 Pontiac Montana

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Van turns over, but its not getting enough fuel to keep it running. Could it be the fuel filter? I have already replaced the battery. It has enough juice to run the radio and the door bell, but won't turn over the car.

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Most likely the fuel filter. But it could be the fuel pump if it is on its way out it may not be delivering enough fuel. Also could be clogged fuel injectors or bad idle air controller (IAC). Start with the fuel filter. If it gets better but still not quite rite then try running some fuel system cleaner through it. If the filter got clogged then some of the grit probably got through and in to the injectors.

Posted on Jun 05, 2010


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Check your fuel filter. NOTE: sometimes a fuel pump will run, but still too weak to supply enough pressure to run an engine properly. Replace the pump if you haven't already. Get a new one and at least you can eliminate it as the problem.

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maybe you can reed this:
Get in the van and roll all the windows, turn off radio and a/c and kids. Basically you want to create a quiet environment just for a second or two. Now engage the key as if to start the motor but don't turn the key all the way to start the motor, just before this point. You should now hear a "buzz" or "wind" behind you towards the back of the van, just for a few seconds. This is the fuel pump engaging and pumping fuel. If you don't hear this wind then try it again. It has nothing to do with pumping the gas pedal. It is an automatic item that turns on then off quickly because it thinks it has shot enough fuel from the tank all the way to the motor to start up. If no wind then I'd check and even replace the fuel pump relay which is right above the battery towards the back of it. Actually you will see 2 relays there and they are identical. You could always just switch them to see if the relay was bad. The other relay does something obvious on the van that I forgot but it will be apparent once you disconnect both as to what the other controls. If the fuel pump relay now works in the other slot then the relay is good BUT your fuel pump is most likely bad. This stinks because now you have to lower your gas tank to replace the pump which costs $150 or so. It is easy to do but takes a good 3-4 hours and an almost empty fuel tank is preferred before you begin because the tank is already heavy enough empty. The only special tool needed is a fuel line disconnect tool which is a $6 tool at any auto store. If you hear the sound then the relay is fine. You might want to check to see if your fuel filter is clogged. Again easy to do but messy. Use that same fuel line tool and wiggle it between the end of the fuel filter (right under the van driver's side) and the line. It won't fit that well but just keep wiggling. Now press the line towards the tool and pull line back and it should pop off. Have a rag handy because fuel will drain from the loose end of the hose that goes to the motor. Now get in the van and quickly engage the key again. You should have shot a few ounces of gas onto the ground (I say ground because you should do this outside in a well ventilated area and NOT in your garage). This means your filter is fine. Next I'd check your spark.
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Ya sounds like fuel filter is clogged.Id start there.If not then fuel pump is going out.Has weak pressure and has enough to start it after turn key on but not enough to keep it running.Id start at the filter first since its a easy and inexpensive fix.

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