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Re: buick regal 3.1 new battery new fuel filter won't...
I agree. that's preety much all there is to the fuel system. All fuel rails have the release valve. If you could get your hands on fuel pressure tester, that would be helpful. Also have someone stand by tank and listen to see if they hear the pump kick on when you turn car to on position
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Did you check the fuel pump relay ? You would need to use a fuel pressure gauge and check pressure before you crank the engine. When you turn the key switch on, the pump relay is supposed to provide power for 3 seconds to boost fuel pressure. If fuel pressure is ok, the coolant temp sensor could be telling the computer the engine is warmer than it really is.
I had a similar situation just this weekend on my 94 Buick Regal GS - it was the fuel pump (it wasn't 'engaging'). Unfortunately it was labor intensive (the fuel pump is in the gas tank, so they have to drop it to get to it), so about 500 bucks later, I have a new fuel pump, fuel filter (and, oh yea - a new battery, too just for fun).
It sounds like a fuel pump resister. I had exact same problem with my regal, resistor has 2 black leads, ceramic and it shapes like horse shoe. mine cost $79.95. Before I know this, I had the dealer replaced fuel pump, fuel filter still didn't fix the problem, and they suggested injector madulator. Very fortunate I ran into a friend has the same 1999 buick regal V6 SC and had same problem told me about this fix. I called 4 buick dealership parts dept.and asked to buy a fuel pump resistor they all told me that there no such thing! So, if want this p[art go to GM parts dealership. And ask them to show you where it locates. Because it hidden inside engine compartment.
My guess is a fuel pump problem. Most cars today are fitted with two pumps, a pre-pump usually within the tank and a second main pump further towards the engine under the floor. ONe pump matbe enough to keep the car running but under additional strain such as pumping fuel uphill this can overwhelm the lone pump.
Locate the fuel pump fuses and relays and ensure that they are OK. Now remove the filler cap and have a friend turn the ignition to position 2 (not starting the engine) you should be able to hear the buzzing of the pre-pump if put your ear to the filler pipe, do this in quiet area. Remove the pre-pump fuse and listen again for any contrast in sound level. If there is no change then the pre-pump needs to be renewed. Do the same to the second pump fuse, although this time the noise will come from mid position along the car. When you renew one or other of the pumps also take the opportunity to renew the in-line fuel filter, any slight blockage can make the difference between a car that is easy to start and one that is very hard to start
ok its one of two things you need to check when it cuts off if you have spark or fuel if you lose fuel pressure replace pump it gets hot and makes noise like its running but its not pumping fuel and if you lose spark you need to replace ignition control module has a hair line crack in it and when gets hot the crack expands and loses contact and wala no spark
if this car is been sitting, the battery might be low or dead, but if not,
you know your question confuse me a little be, because if your car won't turn, that has nothing to do with the filter, but if the car crank but wont start then it migh be a bad fuel pump, the way to fin that is, by aplying some flamable brake or carburetor cleaner to the intake, then if the car starts or try to, most likelly your fuel pump is gone.