Question about 1990 Buick LeSabre

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I changed the fuel p[ump on my 1990 buick lesabre and it wont start now but the fuel is getting to the engine

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  • George May 11, 2010

    Have you checked for spark ?

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Check and see if you are getting any fire. When you say that you know that you are getting gas, are you checking at the carb? If so, then it sounds like a electrical problem.

Posted on Jul 03, 2009

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Posted on Jan 02, 2017

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2 Answers

Will not start


auto shutoff relay or ignition module bad..

Dec 27, 2013 | 1990 Buick LeSabre

1 Answer

Where is the fuel relay in a 1990 buick, I changed out the fuel filter!


Check for voltage at the pump before you condemn the relay. If voltage present, the pump is bad. If voltage not present, check fuse. Fuse o.k. then the relay.

Feb 04, 2018 | 1990 Buick LeSabre

1 Answer

I have a 1990 Buick Lesabre, it will start when cold, but not when its warmed up at all. If i let it Idle for 5 minutes and turn it off and back on it wont start. It seems to run fine when it does turn on...


Hello: I would first check the coolant sensor then the fuel pressure then also check the vacuum line going to the fuel pressure regulator. If it has gas in it the regulator is bad.

Jun 22, 2011 | 1990 Buick LeSabre

1 Answer

I have a 1990 Buick Lesabre and need to get a diagram of the fueling system. I am wanting to change the fuel filter and maybe even the fuel pump


You surely can get under the car ,find & change the fuel filter

The fuel pump usually fails before you change that

You can however, since you got 11 years out it,check
it running ,with an oscilloscope, to see if it's on it's way out

No diagrams needed for any of that

Jun 12, 2011 | 1990 Buick LeSabre

2 Answers

Where is the ignition control module located on a 1990 buick lesabre


For 1990 Buick Lesabre 3.8L FI OHV 6cyl the Control Module-Ignition is located: Under hood, passenger side, front engine area, mounted on upper passenger side of cylinder head under ignition coil.

Hope helps (remember to rate this answer).

Apr 11, 2011 | 1990 Buick LeSabre

1 Answer

1990 BUICK LESABRE WONT START CHECK ENGINE LIGHT DOES NOT COME ON REPLACED CAM SENSOR HARMONIC BALANCER AND CRANKSHAFT SENSOR


If it's a1990 check the ECM (computer) for the number 1228253. Those ecm's are junk and get another one get the replacement that gives no trouble 16198264. Clean the ends of all three battery cables and replace bolts too.

Nov 26, 2010 | 1993 Buick LeSabre

1 Answer

92 buick lesaber wont start all fuses are good


check for fuel presure at the port on fuel rail on top of engine.could be pump.

Jun 05, 2009 | 1992 Buick LeSabre

1 Answer

I have a 1990 buick lesabre that wont start


Timing chains do not go bad on a 3800. The old 3.8 b engines did. Try a crank sensor. My timing set in my 3800 has 293500.00 miles on it.

Jan 06, 2009 | 1990 Buick LeSabre

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