Question about 1992 Buick Roadmaster

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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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No special tools. phillips screwdriver is all you need. critical part is getting wires on the right terminals. You first have to identify the proper orientation of the cap. It only goes on one way. Look for the tang on the cap that must fit into the notch in the housing. Align the old and new caps and move the wires one by one from the old cap to the new cap. Then use the screwdriver to turn each of the 4 retaining lugs. You push down on the screwdriver and turn them CCW about a quarter to a half turn. The cap should then come off. The rotor is there underneath. Remove the 2 screws and install the new rotor--it only goes on one way. Put the cap on, making sure the tang fits into the notch. The lugs should go back easily if the cap is on right. That's it, you're done. Please let me know if you have questions, and thanks for using FixYa.

Posted on Mar 21, 2011

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Replace fuse dashboard 1992 buick roadmaster


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1.Distributor Cap: remove the 3-bolts holding the distriboutr to its body.
2. Inspect the distributor cap for cracks, and the roror-button is not worn or broken.
3. Inspect the distributor-cap terminals are not corroded or charred. Replace if charred. Clean them out if corroded.
4. Check the distributor-rotor for cracks or corrosion on its tip, and lesser spring tension.
Replace as necessary.
5. Reverse steps 1-4 to re-install distributor cap. Be sure to remove and replace the plug wires from the old distributor-cap to the new distributor-cap one-by-one. If not, the engine would not run.

Fuel-Filter:
1. Undo the top clips holding the fuel-filter hose, and undo the lower clips also.
2. Take out the fuel-filter from its mount.
3. Replace the fuel filter as necessary.(please not the way it was mounted) Reverse removal for installation.

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What order do plug wires go on distributor cap


Firing order is 1-8-4-3-6-5-7-2. Move #1 cylinder to where piston is up, and on the compression stroke (TDC). Easiest way to do this is with a compression tester on the #1 cylinder - rotor cap OFF. When you see the pressure build...you're on the compression stroke.
The rotor cap should be at the #1 cylinder firing position...simply re-install the rotor cap at this time - noting which button is #1.
Starting at #1 install the wire for the #1 cylinder onto the rotor cap...the next button (clockwise) on the cap should correlate to #8; the third button on the rotor cap is, cylinder #4..and so on.
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How do you replace the distributor cap on a 92 Buick Roadmaster?


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.

Feb 11, 2009 | 1992 Buick Roadmaster

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