Question about 1991 Buick Regal

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Will not restart, can hear fuel pump pressurize system

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Ck and see if you have spark

Posted on Sep 03, 2010

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Why does the fuel pump relay don't click when i turn the key to run? and why there is no power at the fuel pump relay?


the operation of most fuel pumps is controlled by the fuel pressure regulator
when the fuel pump gets to set pressure , the pump is switched of by the ECM at the relay level
maybe nothing wrong with your system just the system working as designed
if you have pressure in the fuel manifold when you turn the ignition on then the pump will not run but will if there is a fuel leak somewhere and the pressure drops off

Oct 25, 2016 | Cars & Trucks

1 Answer

Car won' start, battery is ok, antifreeze is low but not out could this be the problem?


No. it wouldn't keep it from starting. If the engine cranks but won't start, probably gas or spark (ignition) related. Do you hear the fuel pump in the tank turn on for a couple of seconds, when turning key to on, not start? If you cannot hear the pump, better check if you are getting gas up to the engine. Maybe the fuel pump quit, or the pump circuit needs looked at. The pump should briefly turn on with key on to pressurize the fuel system-the fuel line and the fuel rail where the injectors are. Then the pump will turn off, and only come back on again when the engine is cranking, and stay on when running.
Correct fuel pressure is important for easy starting, and good engine performance. Have the fuel pressure checked against the specification for your vehicle. If fuel pressure is good, check the ignition system-check for spark.

Dec 31, 2013 | Cars & Trucks

1 Answer

2002 Pontiac Firebird acts like it ran out of gas and now won't even start. Could it be fuel pump or something else. Service engine soon light also comes on occasionally due to emmisions sensor fr


with the key on engine off listen to fuel pump,if you can not hear the pump winning ,the pump is bad

if you can hear it,it might be working but create enough pressure
you can rent a fuel pressure gauge from auto store and check the fuel pressure

Apr 19, 2013 | 2002 Pontiac Firebird

1 Answer

2001 honda passport not getting fuel


First off, do you hear the fuel pump priming when you turn on the key. Should hear a light buzzing from the fuel tank for approx. 5 seconds. Have you opened the pressure line or the pressure test port on the fuel line on top of the engine to see if you are getting any fuel even trickling out especially during the priming. Pressure should be in the neighborhood of 45-50 psi for the system. A fuel pump can slowly fail, by losing pressure, but still can move some fuel if you hear it running oon the prime cycle. You can often borrow a fuel pressure guage from your local chain auto parts store to actually see what's goin on with the fuel system. You hook it up to the test port on the fuel rail and watch the pressure on the prime cycle. If it is very low, try priming the system 3 or 4 times to see if pressure builds, if not that would lead to testing the pressure regulator. But that's for next time.

Jul 22, 2012 | 2001 Honda Passport

2 Answers

I have a 1997 Jeep Grand Cherokee Laredo, 6 cyl. It will stall while I am driving, and may restart right away or may not restart for 20 minutes. I keep hearing this is a common problem for these Jeeps...


check fuel pressure regulator.....Fuel on one side of diaphrag, and vacuum pressure on other if there is fuel on the vacuum side then diaphragm is leaking...causing ecu to think there is plenty of pressure and holds back the signal to turn on fuel pump....

Jun 28, 2011 | 1997 Jeep Grand Cherokee

2 Answers

BOUGHT TRUCK NOT CRANKING. SPRAYED STARTING FLUID INTO INTAKE AND CRANKS AND CONTINUES RUNNING, WILL DRIVE, TURN ENGINE OFF IT WILL NOT RESTART WITHOUT SPRAYING. i DONT HAVE FUEL PRESSURE GAUGE BUT THERE...


if you have the same problem with the engine Hot or Cold then it may be the cold start fuel injector in the throttle body / carb. may need to be cleaned or replaced.
may be chock and linkage

Apr 05, 2011 | Ford F-150 Cars & Trucks

2 Answers

I was driving approx. 70mph when vehicle stopped. I put in 3 gallons of fuel and was still unable to get it to restart. Vehicle cranks and attempts to turn over but no fuel is reaching the engine


let a little fuel get into the intake and see if it tries to start. If after checking the fuel relay and fuel filter, you probably have a bad fuel pump. If you have access to a fuel pressure gauge, hook it up to the fuel rail and see what the fuel pressure is. If the cranking pressure is more than about 5psi below the recomended pressure it will not start because the injectors need a certain pressure to open..

Aug 15, 2009 | 2001 Oldsmobile Silhouette

1 Answer

92 dakota cranks and wont start


Possibly you have a porous sump in the fuel tank.

Jun 20, 2009 | 1992 Dodge Dakota

1 Answer

Fuel pump irregularity


Sounds to me like you got a faulty pump. To be sure, put a fuel pressure gauge on the engine and see if the pressure drops.

Feb 08, 2009 | 1993 Chevrolet S-10 Blazer

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