Question about 1990 Buick LeSabre

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My b1990 buick is putting like its getting no gas but my fuel pressure is right but it will drive for a while then starting putting

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  • Buick Master
  • 76,630 Answers

You need to run a fault code test on the electronic engine control system, to learn how go here.

Posted on Nov 08, 2012

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  • 2 Answers

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Posted on Jan 02, 2017

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  • 148 Answers

SOURCE: 1997 buick le sabre

its the electrical connection at he fuel pump,if this is ok ask if they replaced the strainer on your fuel pump,your fuel pump is inside your gas tank ,you have to drop the tank to service,most fuel pumps are not warrantied if you dont change the strainer,when your car shuts off the sediment on the strainer falls back into the tank,but when you run your car and it sucks up the gas thru the strainer to the pump it clogs the strainer and the fuel pump cant pump,you shoiuld find out if they changed this because your forcing your fuel pump to work harder,was it a new fuel tank or used one that they put in

Posted on Jul 09, 2008

  • 10 Answers

SOURCE: My 1997 Buick La sabre starts fine and drives a

maybe check for a bad relay controlling the fuel pump

Posted on Oct 23, 2009

bnjmnolivas
  • 10 Answers

SOURCE: 1988 Buick Century, not getting gas

by pass relay to see what happens.

Posted on Apr 05, 2010

roniecon
  • 6826 Answers

SOURCE: i have a 94 buick century it cranks but cut right

Need to pull the codes to see if the throttle position sensor is the problem,or maybe low fuel pressure,have the fuel pressure checked to make sure.

Posted on May 23, 2010

jturcotte
  • 8515 Answers

SOURCE: 1992 buick skylark. Not getting fuel. Has fuel

Hi, you may have a bad wire from the ECM to the back injectors. Please run the checks again with your meter set to AC and check voltage on all injectors while cranking the engine. If the back injectors are not showing AC voltage, check the continuity of the dark green wire that goes to pin C12 of the ECM. The ECM is above the passenger's feet, but you will have to remove the sound insulating panel to see it. You can check continuity of the wire without removing the ECM connector if you can make contact with the wire from the back of the connector (you can gently slice the insulation on the wire along its length--the connector involved in shown in the top right of the diagram below). Remove all of the back injector connectors from their injectors, and test the continuity of each injector connector (on the terminal with the drak green wire to the back of that pin C12 on the ECM) to the same dark green wire at the ECM. With your meter set to ohms, the resistance should be zero ohms. If not, check for a break or other issue with the wire. You can cut the wire and solder in a new one, if necessary to restore continuity. Please let me know if you have any questions, and thanks for using FixYa.

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Posted on Apr 04, 2011

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Related Questions:

1 Answer

My Buick cranks but does not start


Did you do fuel pressure testing , check fuel pressure regulator .

Nov 30, 2015 | Buick Cars & Trucks

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I have a 1991 buick skylark,3.3 l. It started dying when hitting the gas at the bottom of a hill. Slowly started dying here and there. Then it would only idle until I touched the gas and it would die....


How do you know the fuel pump is good ? Did you do a fuel pump pressure test with a test gauge ? Did you test the fuel pump electric circuit ? Is the check engine light on ? There is a fuel pump relay under the hood engine compartment . The right front behind the headlamp are four relays , the one to the left is the fuel pump relay .I'll send a link to a video on testing the circuit !There also is a fuse in the wiring near those relays , it's power for the fuel pump relay ! Or you have a bad fuel pressure regulator ! A plugged catalytic converter could do this , need to pull the O2 sensor an do a back pressure Test ! Fuel Pressure Test Exhaust Backpressure Testing How To Diagnose Exhaust Restrictions EricTheCarGuy


Mar 14, 2015 | 1991 Buick Skylark

1 Answer

Run 87 buick century out of gas. put gas in tank, it started but run rough then quit completely and wont restart


How old is the fuel pump?

Check fuel pressure with a gauge on the engine
fuel rail port.

Have someone listen by fuel tank for pump,when you
cycle the ignition on & off

Jul 05, 2012 | 1987 Buick Century

1 Answer

My 95 buick park avenue runs good when driving 55 but when going up a slight incline or giving a little more gas it starts to run jerky or missfire until you give it enough gas for the trans to downshift...


Could be in need of a tune up or you could have a bad coil pack. Start it up at night with the hood open and see if you see anything arching from the coil packs or any plug wires. Also could be a fuel pressure problem but slightly more unlikely you can use or put a deposit down and take home and use a fuel pressure gauge at Autozone or O'Reilly's, and they can look up the psi of fuel pressure you should have.

May 16, 2011 | 1995 Buick Park Avenue

1 Answer

Fuel injectors may be clogged car stalls while driving when i put fresh gas it runs good


Have you had the fuel filter changed? Location is inside the right front wheel assembly...You can have the fuel pressure checked to confirm all is OK with the fuel. Hope this helps.

Feb 15, 2011 | 1994 Buick Park Avenue

1 Answer

Aftter driving for a few minutes vehicle dies, after waiting awhile it will start back up. Acts like gas but changed fuel filter, almost as if it cools a bit about 15 miutes and starts up.


Sounds like a bad fuel pump. Check fuel pressure.
Also could be the fuel pressure regulator that supplies fuel pressure on start up before your fuel pump has a chance to build up fuel pressure.

Feb 28, 2010 | 1990 Buick Skylark

1 Answer

Random misfire on first start gets worse w/ low gas


change fuel filter if its okay check fuel pressure.

Apr 16, 2009 | 1996 Buick Regal Olympic Gold

1 Answer

1993 Buick Regal


Test your fuel pressure, make sure it is the right pressure and test the fuel volume.make sure its getting the right amount of fuel. if it checks out ok you need to put the car on a diagnostic machine. you may have a signal problem that requires a lab scope.

Jan 03, 2009 | 1993 Buick Regal

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