94Z28-MSTGKLR

iTrader: (20)

So I've been having an issue with my car and I figured I would pull the PCM out and clean it up. Good thing I did. I have pictures of what I found. How can I clean up these pins? Anyone know or have an idea?

2xLS3

iTrader: (3)

Soda blast it
Make sure the case is grounded so the static from the blast nozzle doesn't poof the PCM

Chevycrew

iTrader: (1)

Small pipe cleaner brush, then a thin coat of dielectric grease?

2xLS3

iTrader: (3)

Have fun trying that
First you'll have an issue finding a pipe cleaning brush small enough and next you have trouble doing it without bending the pins
You can find little contact cleaning brush set, but I've never been impressed with their performance and they cost around $40 for a set, I don't feel they're good for anything other then cleaning the contacts on trailer connectors

To the OP, did you pull the plactic retainers from the connectors and see how bad that side is?

Camaroz

iTrader: (2)

That's not that bad. How's the connector's look?

I would try some electrical contact cleaner and work the plug's in and out. Then you can blow out both with some compressed air after you loosen the corrosion up.

flame

iTrader: (13)

Be lucky you found it now. I had a pin rotted right off. Torque conveter lock up was getting really erratic which is what lead me there. Ended up openning the case and pushing enough through to work again.

Just use some electrical contact cleaner spray and compressed air. Then use some dielectric grease to prevent further corrosion. Check to make sure the female terminals are cleaned too.

94Z28-MSTGKLR

iTrader: (20)

The female side of the connector looks okay. It did have water in it and some dirt but it was fairly easy to blow out with some canned air I had for my keyboard. Where can I get some electrical contact cleaner and dielectric grease? I know what the dielectric grease looks like but what does the contact cleaner look like and where do I need to go get it?

patSS/00

iTrader: (6)

Dielectric grease is an insulator, generally not a good idea to use it on things that are supposed to conduct current. It would be pretty hard to use it without getting any on the contacts. Anyway, as I recall there's a gasket on the connector, maybe it can be replaced? Just need to keep moisture out.

the_merv

iTrader: (88)

Normal Grease has always worked for me.
As far as the PCM I'd use a toothbrush & some copper solvent from a gun cleaning kit..**** worked perfectly on one I had to clean up. Brushed it, blew it with some air to dry it, then greased the connector and it was good.

94Z28-MSTGKLR

iTrader: (20)

Well I just stopped by radio shack and picked up some electronics cleaner. I'll give it a try and post up some updated pictures when I'm finished. Thanks for the advice guys.

Pacer Racer

iTrader: (6)

You need to find out how it got corroded in the first place
Are the seals bad?
Is there water leaking down over the PCM?

94Z28-MSTGKLR

iTrader: (20)

Seals look good but I'm not sure if they leak. The guy I bought the car from (the original owner) said he always washed the engine off when he cleaned the car. So I'm guessing over the years it has just accumulated water. That and the fact that I live in Washington and it never stops raining here. It's always wet. It cleaned up really well though. I used a small pick to get around the outside of the terminals and the cleaner. It looks nice but I'm going to touch it up again later tonight. I'll post up some pictures when I'm done for a before and after for anyone else who finds themselves in the same positon with a similar problem.

the_merv

iTrader: (88)

You're a hero.

94Z28-MSTGKLR

iTrader: (20)

Your sarcasim kills me, lol.

94Z28-MSTGKLR

iTrader: (20)

Okay, here are some pictures of what it looks like now after some cleaning. It's about as good as I can get it so it will just have to work. Either way, I guess I can sleep at night now.

the_merv

iTrader: (88)

You have low expectations..

fotoboy

iTrader: (1)

looks good, how did it work out? What was your process for cleaning?

94Z28-MSTGKLR

iTrader: (20)

It worked out good. Just went by radio shack and picked up a small can of electonics cleaner and sprayed down the pcm and the connectors. Let it dry out and put it all back together.