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The Optima 34/78 size fits fine.
Wiring diagrams 1979-1986 in PDF
First pic looks like the cruise control module.
On a stock intake the hook hangs on a lip of the upper intake manifold underneath the intake plaque. Most aftermarket uppers don't have a...
Looks like the windshield washer pump test connector. They should have a grey plastic connector housing around them.
IIRC the depth is 2 1/8. Really shallow for a 6.5" speaker and last I looked there was a poor selection with those specs.
Per the Dorman site the 787-018 brass fitting is for 3/8" hose, but the threaded end is 1/8"MNPT
I've never used them, but two I've seen mentioned in the forums are:
Auto ECM Electronics
1.) Rear Window Defrost Control Relay
2.) Low Oil Sensor Relay
3.) Warning Chime
4.) Horn Relay (brown)
5.) Day/Night Illumination Relay (black)
There is a phenolic bushing that the ball of the shifter sits in. It's possible that the bushing could be worn or cracked....
Ignition control module
Does your right side power mirror work? There's a connector in the kick panel with those wire colors that goes to the right side power mirror.
93 Power Seat
Diagram is in post #10
Had to double check some things. Couldn't remember the wire colors, but yours look right. The connectors are mounted next to each other on the...
The matching connector is mounted behind the metal brace to the right of the gas pedal. It's a pain to get to and almost impossible to see. The...
The 1986 EVTM has what you need.
Check out the post #13 diagram at No dash lights/exterior lights, but still headlights?. It sounds like you tied into the circuit after the...
I've had that same gauge for years and never had a problem. I believe it's just an Ashcroft 15DDG gauge. I can't turn my housing and the needle...
Looks like it's under the EEC TEST storage cover. You can see the broken connector clip.
There were a couple different generations of the blue and red handles also. The early versions didn't have the two Allen head clamp fasteners like...