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How do u know if you need to change your fuel pump on 2002 Chevy impala?

take it out and have it tested
fuel pumps fail mainly from running without fuel in the system
other problems indication a pump problem come from
faulty pump relay , faulty fuel pressure regulator--controls the fuel pressure and the pump relay ,--- wiring, bad ground for the pump, EVAP --not allowing the tank to vent and the pump runs in a vacuum situation or problem ECM not passing the requirement to pump onto the pump relay to start pumping

Apr 05, 2017 | Cars & Trucks

1 Answer

Our goulds pumps j5s is running very loud after we replaced our sewage ejection pump last week. Could these problems be connected?

Those pumps last a long time. I do not think the problems are connected. I am assuming you are pumping water up from the pump. The pump has a check valve in the discharge that may not be closing. Cleaning that should solve your problem. Be sure water will pass through the discharge line into the drain.

Feb 05, 2014 | Goulds Pumps Goulds J5S Jet Pump Shallow...

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2000 mercury grand marquis 4.6 Intermittent problem. 35,000. miles. Problem engine died several times wile driving. Also after car is parked from a drive will not start. Found that the fuel pump is not...

I'd have to test when problem is ongoing. When you first turn on key, no crank, you should hear the pump run for a few seconds then stop. For initial prime, the computer doesn't need rpm signal. Engine cranking, the computer needs to see rpm signal or it won't ground the fuel pump relay. W/o rpm signal, no spark at the plugs and no fuel injector pulse. I know your talking about fuel, but, when problem is ongoing, check spark and fuel injector pulse, engine cranking.
Intermittent problems are a pain, have to test when problem is ongoing.
mercury fuel pump-i4kx0gxqalhdz4ok10irisui-5-0.jpg

Feb 27, 2017 | 2006 Mercury Grand Marquis

2 Answers

Pump problem ,oil pump diagram please

1998 sportster has great oil pressure at point of cooler hook up however the head seems dry and noisy like no oil is getting to the head.

Jul 11, 2011 | 1993 Harley Davidson XLH Sportster 883

1 Answer

I replaced the fuel pump but I'm not get power to

some problems it could be is a fuse,fuel pump relay,wiring problem at the fuel pump when you replaced the pump.recheck your work you may find the problem there.

Jul 06, 2011 | Hyundai Motor 2003 Elantra

1 Answer

The pump is unning but not circulating water on my central heating

In most cases problems with the circulator pump boil down to two problems.
The most common is air in the lines causing an air lock.
The next problem is that the pump gets stuck and is not running even though it may be hot and seem to be running. In this cause the pump can sometimes be taken apart, cleaned and it will work, but usually it needs to be replaced.

Here is a tip that I wrote that will explain circulator pump problems in more detail.

Heating Circulating Water Pump Problems


Sep 25, 2010 | Heating & Cooling

2 Answers

1997 chevrolet lumina not pumping gas from the gas tank

Replace fuel pump is the answer given by those who don't really know anything or just want to sell pumps. Too many peole just replace there pumps only to find it doesn't solve the problem. You have to diagnose the problem. This could be bad fual pump relay, open in fuel pump circuit, ground problem in fuel pump circuit. Check voltage at connector near fual tank. low voltage here indicates a possible wire or relay problem. Check resistance to chassis ground from ground pin at connector supplying ground to pump. Any resitance over .3 ohms indicates a ground problem. Check resistance across the pump motor, infinite (open) resitance indicates a bad pump. normal pump resistance is usually in the range of 2 to 4 ohms or so (Check manufacturers specs to get your pump motors resistance). If you do pull pump, check operation by putting 12 volts (correct polarity) across the original pump before buying replacement. If you hear (or feel) pump run, problem may be somewhere else (not pump). With a little well thought out diagnistics, you should be able to quickly pinpoint the real problem, even when it just looks like a fule pump problem.

Nov 07, 2009 | 1997 Chevrolet Lumina

1 Answer

My TB 1000w does not drain & the pump seems to be working

Check first drain hose at the back. If that is fine, next step is disconnection appliance from power and reaching the drain pump. Even if the pump is working there may still be a blockage in hose connected to pump. Pump is accessed removing the small panel on the lower right side , in front of the appliance. Be prepared to collect a lot of water with a pan when you undo the pump.
A blockage in pump is the most common cause for drain problem, however, if there is no problem on pump lines, problem with pressure switch/water level and timer board can also cause the washer not draining.
Accessing the drain pump and cleaning the hoses will probably fix the problem

Oct 10, 2009 | Tricity Bendix AW1000W Front Load Washer

1 Answer

Not pumping water out

if the dish washer is not pumping out water it could be a motor or a pump issue. the motor attached to the pump forces water up into the sprayer arms and during the drain cycle, this pushes the water out of the dishwasher. The motor and pump is normally under the dishwasher.
check and see if the motor spins. if it spins, then the problem is with the pump ,if it doesn't spin it could be a motor problem or a motor and pump problem.then test and replace the faulty pump or motor . hope this helps

Oct 01, 2009 | Bosch Dishwashers

1 Answer

Water pump housing problems

your pump wep hole, bad pump not pep boys fault :( sorry just need water pump.

Sep 08, 2009 | Toyota Camry Cars & Trucks

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