You will have to remove the inside door panel and determine the cause before any repair can be suggested. Re-post with your findings.
The spark plug gap for a 1986 Chevy Celebrity with the 2.5L 4 cyl engine is .060".
Does your 1986 Chevy Celebrity have the 2.5L 4 cylinder engine or the 2.8L V6?
If it is a 2.8 it has 2
Replace the seat belt.
Please clarify your question as in front or rear axle.
On the V6 the ignition module is under the distributor cap.
There are two different steering wheels available for a 1986 Chevy Celebrity. One was the standard steering wheel, the other came on Eurosprt models. They are quite different so I need to know which one you have to answer your question.
The transmission oil goes in thru the dipstick tube.
The fuse box for all Chevy Celebrities is beneath the dash to the right of the steering column.
The computer, ECM, is on the firewall inside the car and behind the glove box.
The heater core has failed and is leaking engine coolant.
The Chevy Celebrity is an "A" body car. Other "A" body cars included Pontiac 6000, Buick Century and Oldsmobile Calais. The fore runner for "A" body cars was the Chevy Citation.