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1990 Buick LeSabre Repair and Maintenance

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

1990 Buick LeSabre Problems

The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.

The intake manifold gasket can develop external engine oil leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue.

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

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1990 Buick LeSabre Questions

the car generally runs fantastic it just started this hesitation.when you are accelerating from a dead stop the car sputters as if it is on that ground by a toll. But if you roll just a bit first it goes just fine! after that it rides great.

my 1988 Buick lesabre was overheating so I replaced the water pump.now it starts and shuts off after ten to twenty seconds .why could this be what are the possibilities??

I recently changed thermostat and the radiator and water pump seem to be working seem to be working fine.

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1990 Buick LeSabre Reviews

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...

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...

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