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Resources for the Repair and Maintenance of your Buick Rainier

Buick Rainier Models:

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Buick Rainier Problems

Rear Suspension Low Due to Failed Air Compressor

Suspension & Steering -- Verified

On vehicles equipped with rear air springs, the air compressor may fail causing the rear suspension to sit low.

Erratic Fuel Gauge Operation

Electrical & Lights -- Verified

The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.
On certain 2005 - 2007 vehicles, General Motors has extended the warranty on the fuel level sensor to 10 years or 120,000 miles, agreeing to pay 50% of the repair cost. Please contact your local GM dealer for more...

Air Conditioning only blows out the bottom ventts

Heating & Air Conditioning -- mlissk and 11 others

I had a new battery installed and since the air condition only blows out on my feet. I have heard that this is has been an issue with several owners. Have you run across this and any ideas how to fix it? (Fuses have been checked, and the battery has been disconnected and reinstalled)

Check Engine Light Due to Gas Cap Issue

Exhaust & Emissions -- Verified

A Loose or worn gas cap may cause Check Engine Light to illuminate.

CD Player in Radio May Fail

Miscellaneous -- Verified

The CD player in the radio may fail. Our technicians tell us that the radio will need to be removed and sent out to a radio repair shop to correct this condition.

Buick Rainier Questions and Answers

squarepants, 2004 Buick Rainier, 5.3L V8, Riverside, CA

Where can I find the fuel filter and how to remove the park plug
on a Rainer.
Thanks

allesa, 2004 Buick Rainier, 5.3L V8, Aurora, CO

OKAY IM A GIRL AND I HEARD IT WAS EASY BUT HOW WOULD I CHANGE MY GAS CAP TO PASS ADMISSIONS?

jrojr38, 2004 Buick Rainier, 4.2L 6 Cylinder, Reading, PA

im trying to locate the 2 hoses that come out from the firewall so i can atach a flush kit to it. where are they located please?

brittanyc, 2004 Buick Rainier, Alamo, TX

My 2004 AWD Buick Rainier at 25 MPH makes a thud sound and then between 30 -35 MPH the car seems to studder. Does anyone know what can cause this?

jbcraig1883, 2004 Buick Rainier, 4.2L 6 Cylinder, Saint Paul, MN

Hello there!

I have seen answers to questions that the fuel filter is located underneath the fuel tank. I am not able to locate it. Is it under the spare tire?

Is it possible to change on a...

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Buick Rainier Stories

I need a repair on the rear air springs, the air compressor has failed causing the rear suspension to sit low. I also need to get the front Differential rebuilt. Has anyone had any of these repairs done and at what cost???

I love my Buick Rainer CXL! Only problem I have is I can't find a Chilton's manual!!

I started having problems with my 2005 buick rainier shortly after purchasing the car. When you press the brakes sometimes the car will fish tail and have failed twice. The Buick dealership I purchased the car from fixed the issue and pretended it was never a problem because the insurance company called after I had an accident and the brakes failed. The other problems started after reaching 100,000 miles. It has been a complete mess that Buick seems to ignore. It started with the gas needle fluctuating. I fixed it last year. Buick recalled it this year. Next, the oil needle fluctuates, the check engine light is on majority of the time due to the fuel cap. The hvac blower got stuck on high, repaired that. Now the heat comes on by itself sometimes. Let's not forget the rear air springs issue. I will replace that next. Several of the controls went out but the fuse is not blown. Complete mess of a car.

In August, 2011 a clicking sound was heard in the area of the rear passenger wheel. Restarting the car seemed to solve it. However, in a few minutes the clicking sound could be heard again. Suddenly, the problem seemed to disappear, until this past weekend when it started up again. When I tried to start the car Sunday morning, the battery was dead. The Buick dealer said they don't know what causes the clicking sound. Does anyone? Help?

2004 Rainier was a great car until about 85000 miles then everything seemed to hit, air ride failed, sensor problems, air blower fan, cd player, power seats, great gas mileage though. about 21 on the highway

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