1990 Buick LeSabre Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Buick LeSabre

Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
Get a Repair Estimate For Your 1990 Buick LeSabre
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more

1990 Buick LeSabre Problems

The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start

The fuel pump can fail causing the engine to stall and not restart. Our technicians highly recommend to replace your fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

ABS accumulater may fail

The anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)

Inspect transmission/fluid every 30,000 miles

You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be completely flushed.

See More Problems (21)

1990 Buick LeSabre Questions

location of gas filter (2 answers)

no spark (2 answers)

changed cam and crank sensor and igniter under coil pack. still no spark

Will start but won't run in idle once u take ur foot off the gas it dies (2 answers)

It started yesterday I was sitting in idle and it died since then havnt got it to run more than 5 mins and can't even do that without constantly giving it gas I've check fuel filter fuel pump and relays I've heard mybe check the crankshaft sensor need to check fuel regulator anymore i...

See More Questions (81)

1990 Buick LeSabre Reviews

I bought a used 1990 LeSebre in 1997. It was a GREAT car!!! I sold it at about 180,000 miles and at 180,000 miles it ran better & smoother than my 2005 LeSabre brand new! The ONLY problem I had with the car besides normal maintenance was a rocker broke loose in the engine resulting in only 5 cylinders working. I could still drive it but it naturally was a "bumpy" ride lol. I took it to our mech...
when i start the car it runs for 30-45mins then stalls. after about 30-60 mins later it will start back up a run. i have changed all kind of parts out and now it will start then stall. i have put code reader on it b4 i changed parts and it still reads code 41. PLEASE HELP ME IM SPENDING MONEY
My Buick Lesabre is actually a 1989 and at present has 413,000 miles on it. Always had regular oil changes and transmission fluid changes. It was an outstanding car,great on highway road trips. Still has original transmission but has problems now,cannot complain with that mileage. Engine still strong and smooth,now car is used for short trips around town,no longer reliable for extended trips. I...

See More Reviews (5)