On vehicles equipped with rear air springs, the air compressor may fail causing the rear suspension to sit low.
Resources for the Repair and Maintenance of your 2004 Buick Rainier
2004 Buick Rainier
2004 Buick Rainier Problems
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 provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000...
Air Conditioning only blows out the bottom ventts
Heating & Air Conditioning --
mlissk
and 25 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.
2004 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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2004 Buick Rainier Reviews
have dtc po410 code 4.2 engine any answers
bought a 2004 with 53,000 miles on it did'nt have any major issues until 90,000 miles.waterpump,belts,air suspenson, nice vehicle, Iwould get it again if I needed a vehicle.
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
Bought my 2004 Rainier used with 28,000 miles on it, in 2006. I strive to take care of my vehicle with routine preventive maintenance however, despite my efforts I've had major issues with this lemon since shortly after purchasing it. I've had to replace every major component of the front suspension, the catalytic converter failed at 84,000 miles, causing an issue with the exhaust manifold, and now the head gasket leaks. Not to mention the speedometer doesn't work and passenger window motor died.
This is the worst vehicle I've ever owned. I will never buy another Buick product!
It has been a great car except for the rear suspension system! No standard shocks. It has and air bag system in the place of shocks. You can hear it pumping up occasionally.
When it fails it is costly to fix as the whole rear end sinks to within a couple of feet off the road surface. Standard shocks are a much better/cheaper system!