Question about 1997 Buick LeSabre

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After computer code pinpointed why car stopped running and would not restart I replaced the Fuel Pressure Regulator, changed the oil and filter, and cleaned the plugs. After job was completed the car started right up and ran for approx. 5 minutes before it cut off. Now the car will not restart again. Now at a loss for why... Any suggesstions?

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  • Michael Acres Oct 28, 2012

    What's the code, and what did the code say?Also, most codes come with a few suggestions and if one doesn't work try the others.

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Had this happen to my car about 2 years ago .the intake seal was cracked and was causing the problem.

Posted on Nov 02, 2012

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Posted on Jan 02, 2017

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SOURCE: 1999 Regal GS Super charged, Starts,runs 3-5 sec and dies

i gaurantee that it is the fuel pump ressistor up on the passenger side front behind head lamp assembly you will find the connector with two wires going to it. no need to remove old one install new one and connect wires to new one leave old in. dealer only part but not expensive. dont belive dealer when they try to talk you out of it. This is a kit to relocate a ressistor that has been installed in a poor location. I promise this will fix it. My wifes car did the same thing, took 20 minutes to fix and that is only because i am an electrician and am finicky about where to locate wires etc. the kit comes with installation instructions however they are a little vague. trust me. easy fix. my dealer tried to get me to leave car for repair and said it sounds like the theft detterent system. they were wrong and i was right. dont trust em

Posted on Sep 03, 2008

emissionwiz
  • 76164 Answers

SOURCE: Hard to start in the morning. Also stalls

This sounds like a fuel pump check valve problem, if the fuel is not kept in the filter and lines by the check valve it drains back into the fuel tank and causes the kind of problems you are having, you can check this by hooking up a fuel pressure guage at the test port on the fuel manifold that supplies fuel to the injectors, run the engine and shut it down, note the fuel pressure at shut down (with the test guage hooked up), walk away for an hour, come back and check the pressure, it should not have dropped more than 5 PSI You can buy a universal fuel injection pressure tester for about $25.00, cheaper than having a shop run the test. If the pressure drops you found the problem, bad news is the check valve is in the pump, the pump is in the gas tank.

Posted on Oct 16, 2008

  • 42 Answers

SOURCE: Car stalls when oil pressure drops...20 minutes to restart

No it is a fail safe. When your oil pressure drops below (on most cars) 30 psi your computer will shut your fuel pump down until you either let it sit for a while and it resets or until oil pressure builds again. Sorry!

Posted on Mar 11, 2009

  • 11 Answers

SOURCE: 1994 uick lesabre barely runs when pushing gas ped

also with request of pcv valve check does car shake or vibrate when trying to accelerate? if that is to be the case more than likely bad pcv valve.

Posted on Mar 31, 2009

csmock132
  • 4669 Answers

SOURCE: 92 Buick Le Sabre engine stumbling/hesitation

Have you checked fuel pressure? How about spark on all 6 cylinders? Maybe a coil?

Posted on Apr 29, 2009

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Vehicle starts runs for 1-2 minutes then quits, Starts right up. Fuel is being shut down.


Also what no one is mentioning is to make sure you have oil pressure, or that the oil pressure sensor is working, alot of newer vehicles run the fuel pumps off of them oil pressure sensor so if your vehicle stops pumping oil and lubricating, it shuts the fuel pump off to protect itself from damage or further damage

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Hi playerboy890,

The piece that you have described is the fuel pressure regulator,After you replace the fuel pressure regulator you will need to change the oil and filter due to contamination of excessive fuel into the oil pan.

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I have a 93 pontiac firebird V6. The problem that i am having is the car will be running fine in route to my destination but as soon as i shut the car off and try to restart it when i get ready to leave it...


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How do you change a fuel filter


All WJ models have two fuel filters, a strainer filter at the bottom of the fuel pump module inside the fuel tank and one exterior filter within the fuel pressure regulator. Both filters are designed for extended service. They do not require normal scheduled maintenance. Filters should only be replaced if a diagnostic procedure indicates to do so.

The combination fuel filter/pressure regulator is located in front of the fuel tank and above the rear axle. It is transversely mounted to a chassis crossmember (left-to-right). The filter/regulator is equipped with 3 fuel line fittings (2 at one end and 1 at the other end). The single fitting facing the left side of the vehicle is the supply line to the fuel rail. The 2 fittings facing the right side of the vehicle are connected to the fuel tank. Of these 2 fittings, the fitting towards the front is used for fuel return to the fuel tank. The fitting towards the rear is a pressure line.

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Fig.: Fuel filter / regulator location


External filter/regulator removal
WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE SERVICING ANY FUEL SYSTEM HOSES, FITTINGS OR LINES, THE FUEL SYSTEM PRESSURE MUST BE RELEASED.

1. Remove fuel fill cap.
2. Remove fuel pump relay from Power Distribution Center (PDC). For location of relay, refer to label on underside of PDC cover.
3. Start and run engine until it stalls.
4. Attempt restarting engine until it will no longer run.
5. Turn ignition key to OFF position.
6. Disconnect negative battery cable at battery.
7. Raise vehicle.
8. Clean area around 3 filter/regulator fittings.
9. Disconnect fuel supply, fuel return and fuel pressure lines at filter/regulator. Special tools may be required.
10. Remove 2 mounting bolts and remove filter/regulator.



External filter/regulator installation
1. Before installing filter/regulator, be sure all fittings are cleaned of all dirt and contaminants.
2. Be sure o-ring is positioned into fuel return fitting in filter/regulator.
3. Apply a small amount of clean engine oil to o-rings.
4. Position filter/regulator to body and install 2 bolts. Tighten bolts. Refer to Torque Specifications.
5. Connect 3 fittings.
6. Connect negative battery cable to battery.
7. Start engine and check for leaks.


Hope helps (remember rated this).

Jul 05, 2010 | 2003 Jeep Grand Cherokee

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I checked my fuel pressure regulator and no oil squirted out could that mean my fuel filter is clogged. i already changed the fuel pump and that wasn't the problem


So what is the problem? What is the fuel pressure? why was the fuel pump replaced? do you hear it running? Theres no way OIL could ever come out of a Fuel Pressure Regulator. You should ALWAYS replace the filter when replacing the pump. Some Saturns have the regulator built into the filter.

Dec 30, 2009 | 1999 Saturn SL

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95 2.5 jeep wrangler stalls consistantly and will restart after 20-30 minutes. i've replaced fuel filter and fuel pressure regulator, cleaned cam and crankcase position sensors, checked fuel line and...


I had the same issue with my 4.0, I went through all the same BS you did and in the end it was a faulty fuel pump. Pricy i know but im sure thats your problem

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