Question about 1992 Buick Roadmaster

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How do you replace the distributor cap on a 92 Buick Roadmaster?

One of the two screws is at the back of the cap, and it is very close to the firewall. Impossible to see. What's the trick?

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Your just gonna have to feel it out. Th new screws should stay in the cap. If not a little vaseline will keep it there. I had to do the same thing with mine. A real pain it the **** and bad design by GM.

Posted on Feb 11, 2009


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I have a 1992 Buick Roadmaster. How do I go about replacing the distributor cap and rotor button? Are there special tools required to remove the above items? If so, what are they?

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Do you have pass key anti theft? If so it may be the key or ignition swich at fault.

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The opti-spark distributor cap is below the water pump.
Often a leaking water pump will cause a short in the distributor
Due to the amount of time and labor cost to remove the water pump, and that fact that the water pump has to be removed to replace the distributor cap, it is a good idea to replace the distributor cap at the same time the water pump is replaced. The water pump is driven by a pinion shaft with an " O " ring. Be sure to replace the " O " ring too else you may shortly develop an oil leak at that point.

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