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Does anyone know where i can buy the connectors that plug into the headlight relays?
Mine have corrosion in them, and no matter how much i clean them, i just cant get a good connection for more than a month or 2. I'd love to just replace them with new ones.
or, if someone has a suggestion on how to REALLY clean them.
I clean connectors by first using an aerosol can of fast drying electrical contact cleaner to flush them out thoroughly. If there is a question of any corrosion, it can usually removed with a pencil eraser cut to shape and then flush thoroughly again. Put a rag under the connector to contain the cleaner. A little dielectric grease around the seal should help to keep moisture/dirt out. I do not put dielectric grease on the metal connectors. This solves many electrical contact problems by itself.
Post a snapshot of the end view of the relay connector and the part number that is inked on or stamped in the relay and it's more easily sorted. There's two approaches, buy a pigtail then cut and splice OR just buy some terminals and if there's sufficient wire available just crimp/solder new terminals using your connector. The snapshot and part number information will make it less effort. Depending on the terminal type it could be possible to use a release tool to remove the terminal then clean and reinsert. I've done the later many times if it's just a cleaning issue.
I wanted a good "macro" shot of the connector so I could ID the terminal. Those relays weren't real common, early Corvette, Fiero and I think on some Grand Am power antennas. I was going to give you the terminal option and if I had the snapshot maybe even a connector kit. Do you need all three? There would be two alike at for the actuators and an isolation relay?
i dont have an FSM (keep saying i should buy one), since you have an 86, it should be the same, can you look them up?
I've got a portion of this figured out and I believe with the snapshots I could do the rest BUT judging from this comment by you (I keep saying I should buy one) well maybe it's really time you do. You posted the snapshots while I was doing this.
The isolation relay connector is a GM 12117267 (PT440) and it's been discontinued for some time. The others are like I suspected (just like Fiero), two separate connectors in each relay. I'll post back later.
I don't see the need for connectors and there's a couple of ways to accomplish a fix, new terminals or with the proper release tool just separate them from the connector clean and reinsert. There's less likely hood of creating a worse issue if they're just released, cleaned, evaluated and if necessary replaced.
how hard is it and what is needed to remove / clean them?
the isolation relay isn't bad, its the other 2 which cause problems.
i've been cleaning them every few months when one if the headlights stops coming up
Unlatch the black hinged cover on the back-side of the connector and if you look into it you'll see a "tang" that can be depressed and the wire and terminal can come out the back. You will need to insert the tool/pick whatever into the face of it. Here is an image of a typical terminal and the release of most is very similar. Slip the wire all the way "forward" in the connector, insert tool/pick, depress tab and slip out the rear. Most terminals of the '80 vintage will release with a pocket screw driver blade or a small blade screw driver out of a miniature kit used for glasses etc. A large heavy paper clip will work.
Just remove the terminals and clean the grease off with a toothbrush and Simple Green then, use #0000 Steel Wool or a Red 3M Scotch Brite pad to remove the corrosion.
They'll be nice and shiny and you'll be done with it forever.
you're right, i just removed the clip, and it folds up revealing the pins which actually slide out pretty easy.
These things are filthy. looks like dielectric grease that is really black and cruddy in there, probably 27 year old grease.
is there a place to buy just the metal pins? it would be simpler to just pull the pins, cut, strip and replace them rather than try to clean them.
once the pins are out, i can easily clean the plastic housing
I wouldn't replace the terminals unless it was really required. They need to be crimped properly and if not done correctly can create issues. Take a couple snapshots of them though and I can ID the terminal type for you if you need some. There are several finishes available and there are different ones for various gauge wire. It's actually important to have the correct stuff. They won't be an issue if you need. I seem to recall that maybe one pin in a couple of the relays required a different width terminal. If there are differences let me know. Contact cleaner and brass brush, be cautious not to break any of the wire strands. If you need terminals I can give you enough information to find them locally I'm sure. I just need good snapshots.
ok, so i just spent the last 2+ hours taking apart and cleaning connectors....What a pain in the a$$.
but i really think that 27 year old grease was causing alot of my problems. it was all over the inside of the connectors, very gritty, black, cruddy. jammed into the inside of the terminals and all. a real mess.
I took my time, using a #00 screwdriver, WD40 - which really took the grease off, and QD electronics cleaner - which took off the WD40 remnants and all the corrosion.
I used a little bit of dielectric grease, very sparingly.
the terminals and connectors look like new now.
Headlights also work now, so im hoping it lasts longer than a few months this time.
Thanks for everyone's help, it was a pain, but i think it will be ok now.
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