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Roadmaster

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Question
Looking to upgrade header.
Hello. Typically having water in the headers is not a good sign. If the vehicle is not driven much then condensation can build up in them from short periods of running the engine. If the vehicle is driven often and...
Question
Brake light not working
If your right side brake light is not working, it is possible that the bulb has simply burned out, or that there may perhaps be a problem with the vehicle's wiring. Usually replacing a bulb is a relatively simple procedure,...
Question
Ignition, Starter, or something else?
Hi there. I understand how frustrating things like this can be. Base on what you've described, the year, and mileage of the vehicle it sounds like your battery has gone weak or failed internally. A good battery test with a...
Question
My car will crank but will not start.
Thanks for writing in about your 1994 Buick Roadmaster. There are many things that can cause a no start condition. You may want to have this thoroughly looked at in person by a professional before moving forward with any other...
Question
Car dies on exit ramp coming off interstate
Hello. I will be happy to assist you. I believe the problem you are having could be a result from a faulty mass air flow sensor or a throttle position sensor. Each component heavily inputs on the air fuel ratio of the vehicle....
Question
Car slightly jerks, stalls, and then restarts
Hello. A faulty coil pack is likely the cause of the issue you are having. A less likely cause could be a clogged fuel filter or fouled spark plugs. I suggest that you have a technician inspect your coil pack...
Question
Horn independently honks; fuse disengaged
Hello. We will be happy to assist you. I believe a faulty horn switch or horn relay to be the problem. Your horn is likely original. Inside of the horn, the horn contact switches expand and contract due to temperature...
Question
Power windows failed after seldom being opened
Hello. We will be happy to help you. The window issue you're having with your Buick Roadmaster is a well-known problem for early 1990s GM cars. GM stopped making the plastic guides and started using nylon. You can purchase them from Advanced...
Question
Electrical signal to the injectors randomly malfunction
Hello. The issue you are experiencing is likely an intermittent crank position sensor failure. The crank position sensor is largely responsible for the fuel injector pulse because the pulse is alternated when the sensor passes certain points on the crank. If...
Question
How can I check if water pump is working
Make sure coolant is full. Start the car when engine is cold and let the engine idle. As the engine gets to operating temperature within 3 to 5 minutes, feeling the top radiator hose will start off cold and as...
Question
My cooling fans and electronic climate control wont turn on...
Hello. The ECC unit will be one way to control the fans. There are other ways the computer does this as well. If the climate control is not responding to the switch, then there is either an issue with the...
Question
Cant find brake fitting for 1/4 line going into rear rubber line with tee.
Your best bet would be to have a professional perform the service for you since you are having so much trouble. These are the brake lines so you really want them done right the first time and a warranty in...

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