Buick GS 400 service by top-rated mechanics at the convenience of your home or office

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get fair and transparent estimates upfront

GET A QUOTE Backed by 12-month, 12,000-mile guarantee
Red-stars EXCELLENT RATING ON

How much does Buick GS 400 repair and maintenance cost?

The cost depends on your car, the type of service, and where you live. Here are estimates for a selection of Buick GS 400 services.

Service Estimate Dealer Estimate Your Savings Location
Service type Serpentine/Drive Belt Replacement for 1969 Buick GS 400 V8-6.6L Estimate $115 Dealer Estimate $185 Savings 37.88% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1969 Buick GS 400 V8-6.6L Estimate $86 Dealer Estimate $127 Savings 32.43% Location Denver, CO
Service type Ball Joint Front - Lower Left Replacement for 1969 Buick GS 400 V8-6.6L Estimate $229 Dealer Estimate $360 Savings 36.28% Location Denver, CO
Service type Oil Change for 1969 Buick GS 400 V8-6.6L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Oil Change for 1968 Buick GS 400 V8-6.6L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1968 Buick GS 400 V8-6.6L Estimate $86 Dealer Estimate $127 Savings 32.43% Location Denver, CO
Service type Brake Pads - Front Replacement for 1968 Buick GS 400 V8-6.6L Estimate $125 Dealer Estimate $205 Savings 39.05% Location Denver, CO
Service type Ball Joint Front - Lower Left Replacement for 1968 Buick GS 400 V8-6.6L Estimate $224 Dealer Estimate $344 Savings 34.92% Location Portland, OR

Fast and easy Buick GS 400 services at your home or office.

Get an instant quote
Backed by 12-month, 12,000-mile guarantee
Abc-logo

“Finding a trusted mechanic at a reasonable price can be extremely difficult. With YourMechanic you can skip the auto shop altogether. They send certified and screened mechanics straight to your door and enable you to save big on car repair and maintenance.”

– ABC NEWS
Inc-logo

“YourMechanic will come to wherever your car is to perform any of a wide variety of car maintenance and repair services, and will charge you less than you'd normally pay if you were to drop your car off at a garage.”

– INC.
Fox-logo

"YourMechanic will fix your car at your garage at a fixed hourly rate much lower than their brick-and-mortar counterparts."

– FOX NEWS

Meet some of our expert Buick GS 400 mechanics

Eric

Eric

164 Reviews; 8 years of experience
26 degrees outside and he still completed the task at hand. Knows his way around a car. Friendly, patient and explained what issues were. Eric was very professional & timely. Thanks Eric
Raleigh, NC
March 16
see mechanic profile
John

John

119 Reviews; 16 years of experience
John showed up on time and was extremely courteous and knowledgeable. The shop sent him out with the wrong part (not John's fault) but he was very quick to resolve the issue, he was back with the correct part from a local store very quickly and had everything completed in just over an hour! That's including the time it took him to go back out for the part! Was quick, nice, and honest. Will use Yourmechanic.com in the future and will request John again.
Altamonte Springs, FL
July 15
see mechanic profile
Robert

Robert

170 Reviews; 16 years of experience
Robert is friendly, efficient and professional. thank you for sending Robert.
Denver, CO
July 6
see mechanic profile

Fast and easy Buick GS 400 services at your home or office.

Get an instant quote
Backed by 12-month, 12,000-mile guarantee

Answers to common Buick GS 400 questions

Q: Engine won't crank to start.
Answered by Kevin
Even if the shift interlock solenoid (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-shift-interlock-solenoid) is faulty, as long as the gearshift is in the Park position, you should still be able to start the car. Once the engine is running, you just won't be able to shift...
no start Buick parking/emergency brakes V8-4.6L Lucerne 2007
Q: Car shaking badly, difficulty accelerating, wheels hot
Answered by Robert
You will need to have the brakes checked to see why the brake pressure is staying applied to the front calipers. It sounds like the brake master cylinder is not returning. There is a recall for the vehicle brake master...
Buick 2005 shaking brake system LaCrosse V6-3.8L wheels acceleration
Q: '00 Buick Century Custom. V6 3100. I am at a loss...
Answered by Kevin
Prior to performing diagnostics be sure you have a fully, 100% charged battery that passes a load test (https://www.yourmechanic.com/services/battery-is-dead-inspection). Then, confirm that the engine immobilizer system (security system) is not activated thus preventing the car from starting. If the immobilizer...
parasitic load Buick V6-3.1L 2000 Century Batteries Stalling
Q: The cloth loose or falling inside car.
Answered by Jay
This is the material that is glued to the headliner panel. You will need the complete headliner removed from the car and then the material replaced on the backing. The new material is glued on to the existing backing and...
automatic transmission Buick 1999 car seats V6-3.8L LeSabre

Fast and easy Buick GS 400 services at your home or office.

Get an instant quote
Backed by 12-month, 12,000-mile guarantee

Buick models we service

Our service locations

More cities

Trusted by thousands of happy car owners



Paul did a good job fixing my car quickly. He also got a accurate diagnostic of my car's isues.
Xavier

from New Port Richey



Jason is knowledgable, reliable and friendly person. He took his time to explain things about my car. I highly recommend YourMechanic and Jason's service.
Raj

from San Jose



A++ Highly recommended! Bryce was very professional, knowledgeable and punctual. He explained to me in detail exactly what he did and showed me the parts he replaced. I will definitely be booking Bryce for my next appointment.
Emmanuel

from Grand Prairie

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com

Read FAQ
GET A QUOTE