Have the tps (throttle position sensor) sensor checked. It could be bad or maybe it just needs to be repositioned. my 92 Buick century idles erracticly and I simply adjust the tps sensor and it idles down but is erractic again once i hit huge bumps in the road. the fast idle solonoid is dirty. Takeit off of the throtle body and clean it. It's located on the back of the throttle body. 2 Phillips screws. Clean the carbon off with throttle body cleaner. And the first answerer needs to fix his or her grammar. Go back and listen in English class. I'd be ashamed.
Anjother possible answer:
Check four prossible lo koolant condishin, or faulty or diskonkted ECT sensor. I is even more ashamded. Vakyoum leaksis are anothear pissibltee.
The fuse box is located in the glove box on 1991 Buick Century
yea it should
My 1991 Buick Century won't move or hold transmission fluid
Yes, on Buick Century 1991 you need to replace the whole hub, it is much easier than replacing individual bearings.
The oil capacity for a 1991 Buick Century 3.3 is approximately 5 quarts. The recommended oil type is 10 W 30.
My Chilton's Auto Repair Manual shows : For a 1991 Buick Century : ( 15.7 U.S. gallon gas tank )
Pressure test system and watch for leak
behind right headlight
you have to go in and drop the gas tank... it is on the top
yes it does as do almost all reciprocating engines
I don't believe you have one on that model; however, do check with a buick dealer and if they show one, have them show you its location.
above the gas pedal, mounted to the steering wheel.
Behind theback tire on the drivers side under the body of the car.
Hollander interchange says it will
Type "1991 Buick photos" into your search engine. If you are interested in a particular Buick Model then add that model such as "1991 Buick LeSabre photo".
The PCV valve plugs into the rocker arms cover or intake manifold.
typically ther're on the top of the valve cover or on the intake manifold.
That one should be near the front of the fuel tank under the car.
It's located behind the alternator, you can easily be removed if you temporary take out the alternator.
Depends on what type of 1991 Buick you're referring to...
You can find wiring schematics at your local library as they usually have motor manuals there.
When this happened to me, I just bought an entire new car.
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