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Pump moter buzzes when I turn on jets then clicks off for 15 sec. or so then buzzes again during prime mode.

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Thank you for posting your question here on Fixya.com.

The motor is likely failing. It may be a small part such as the capacitor or the starting switch, but could also be more severe such as the winding itself. You will also want to examine the shaft where it passes thru the pump and motor and look for signs of rust from a pump seal leak.

If you are not familiar with testing these parts your best bet would be a local electric motor repair shop to see if the motor can be repaired or if it would need to be replaced. They should also be able to ensure there is no pump damage.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!

John

Posted on May 30, 2010

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1 Answer

Why did a hum/buzz sound come from mid to back area after being turned off couple hours?


Hi: If you just bought the car there should be some kind of recourse with the dealer, There are lemon laws to protect the buyer. Check it out. It could be the fuel pump losing it's prime and the hum you hear could be the pump going on to restore it's prime. Good Luck

Mar 15, 2016 | 2002 Honda Accord

1 Answer

I turn ignition to ready position. The fuel pump engages and prime's the line. I then start the engine. Engine starts and runs for a max of 15 seconds. As soon as the engine cuts out the fuel pump...


The crank sensor is a good candidate. Pretty common failure on jeeps.
To clarify, the fuel pump is on all time during engine cranking, and during engine running. When the engine cuts off, the pump will also be stopped. But, you will not lose pressure in the fuel lines and fuel rail immediately. The check valve in the pump is supposed to hold fuel pressure in the system for a good time-about 20 minutes. The pressure should bleed off very slowly.

Your fuel pump and fuel system is probably good, but if you really lose prime (or pressure) that quickly, then there is a problem. Best way to check is with a fuel pressure gauge after the engine cuts out. Or, if you have the test port schraeder valve on the fuel rail (looks like a tire valve), you can use a screwdriver to press the center of the valve. If gas squirts out, you do have fuel pressure, prime is not lost, fuel system is good, and you can assume problem is in the ignition circuit, not a fuel problem. Probably the crank position sensor.
Good luck, Casey.

Oct 24, 2013 | 1989 Jeep Comanche

1 Answer

Started motor fine a few minutes later it died and would not start again had wife crank over while i look in carb no gas spraying into carb prime with gas and it would run for a sec then die again...


When you state "carb" I assume you mean TB as it should be Throttle Body Injection, unless it was converted.
You should be able to hear the fuel pump in the tank prime for about 2 seconds when you first turn the key on. May have to get your helper to remove the gas cap and listen through the filler.
If you don't hear a buzzing sound then check the relays on the firewall. You can turn the key off, wait a couple seconds and then turn the key on and have your helper listen and feel for the relay that clicks.
Or look for the wires,
The relay will have a dark green/white from the ECM
Grey is power to the pump when the relay is enegized.
Orange is hot at all times. It comes from the ECM B fuse. Should check that as well if not done so.
Black/white is a ground.

Now most likely if your relay clicks when the key is turned on then its all fine and the fuel pump has gone out. The oil pressure switch also enegizes the pump when there is oil pressure.

Oct 04, 2011 | 1987 Chevrolet S-10 Pickup

1 Answer

My Jet Pump Looses it's prime at night.


I assume the pump is not running at night. If the pump is higher than the pool, and the inlet and outlet to the pool are both under water, then you have a small leak. This could be allowing the water to leak out of the line. Or, if the leak is higher than the pool surface it is allowing air to leak into the line, which allows the prime to run down into the pool. If you found this useful, please vote. Thanks.

Feb 16, 2010 | AO Smith 2 hp Swimming Pool - Jet / Well...

1 Answer

Jet pump is cuting in and out rapidly during


check your seals may be pulling air in

Oct 12, 2009 | Plumbing

1 Answer

I have a suffolk punch 14s the engine cuts out when I apply revs idle is ok only does when throttle is opened


try repacing the fuel filter it sound's like not enough petrol is gettng up to th rail for high rev's, could even be a weak pump but try the filter first & make sure the cover cap is sealed properly I use a bit of silicone or hermetite red as air can back into the system overnight if not sealed & you have to re-prime with the ignition key swithing on & off at sec intervals, actually try priming first with the ignotion key, turn till dash lights come on and hold for 4 sec's then turn off wait 4 sec's & repeat, you shoul hear the petrol pump buzzing each time, might just be air in the system or a leak & that will show it up!
Hope this helps !

Sep 23, 2009 | Garden

1 Answer

Haywood Max-Flo Pump (self priming)for indoor inground pool 3/4 HP ... model C48J2N131A -- yesterday turned off master breaker switch to everything in the pool area (including power to pump) so that I...


The motor may have blown the start capacitor. It is the black cylinder about 1-1/2" dia x 2-1/2" long. Look at the end with the wires for a small hole. Is it blackened or have a hole blown thru? If so replace it. Otherwise have a local electric motor repair shop look at it for possible repair or replacement.

Sep 06, 2009 | Hayward Pool Products Hayward Max-Flo 1...

1 Answer

When starting car, takes 8-10 sec to turn over.


Do you mean 8 to 10 seconds to START? Turn over means the engine is turning or cranking BUT starting is when the engine is actually running. I think you might have a fuel problem like your loosing your prime. Turn the key off wait 15 sec. then turn the key ON not cranking it repeat this (3x) if the car starts immediatedly your fuel pump is loosing its prime or the fuel pressure regulator is leaking.

Jul 13, 2009 | 2001 Isuzu Rodeo

1 Answer

SENDING UNIT ???????


most of fuel pumps were in tank, wire corrodes is harness under right front seat floor pan to tank
if fuel pump buzz is heard and car runs and when it doesnt run you cant hear the fuel pump try
turn ignition off wait 10 seconds
turn ignition to on position to (prime or hear pump buzz)
no buzz fuel pump not working check fuel pump relay(swap with another) and try again?
you could use test light to pump wiring and make sure your getting power to pump on this prime test no power relay or wiring problem.
power at pump, but no buzz fuel pump faulty

Jul 01, 2009 | 1997 Isuzu Rodeo

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