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Removing The Computer

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Old Feb 22, 2005 | 03:16 PM
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Default Removing The Computer

What is the easiest way to remove the PCM? What tools are needed?
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Old Feb 22, 2005 | 06:21 PM
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I used a 1/4" drive ratchet and sockets. You will have problems removing the TAC module bracket but if you take your time it is do able. You may be able to get a box end wrench on the hardest screws to reach.
DO NOT try to cheat and remove only one side! It will break! Make sure that you use some compressed air and blow out all of the dirt and moisture from around the plugs and connectors.

You will need some silicone lubricant gel to lubricate the plug and connector O rings!

May I ask why you are going to remove the PCM??

Bill C
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Old Feb 22, 2005 | 06:37 PM
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Originally Posted by Mitch C
What is the easiest way to remove the PCM? What tools are needed?
I replaced my PCM the other day and kept the original to put back in for trips back to the dealers. After removing the passenger side front tire and the access panel inside the wheel well the TAC & PCM are exposed. The only difficult part of the whole deal are the back mounting screws. You have to be a contortionist to get to these. Remove the TAC module (2 screws) and then remove the two connectors from the TAC. Once this is out of the way, remove the two connectors from the PCM. These are self extracting connectors that will back out when you turn the mounting screw. Next, loosen the rear mounting screw in the PCM bracket, but don't remove it. Remove the two front mounting screws from the bracket. The PCM will now slide out towards curbside. Reverse this procedure to install but don't tighten the rear PCM mounting screw and do not install the rear mounting screw for the TAC. This will make the next removal much easier. I just used a nylon tie wrap to secure the back of these modules. It is not necessary to disconnect the battery or any fuses to perform this change.

Bob
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Old Feb 22, 2005 | 08:38 PM
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Originally Posted by Bill Curlee
May I ask why you are going to remove the PCM??

Bill C
I am sending it to the Vettedoctors to have my 3-4 shift point and A/F tweaked.

Thanks Guys for the info.
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Old Feb 22, 2005 | 09:04 PM
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I was able to GENTLY spread open the PCM bracket and slide out the PCM w/o touching the rear bracket screw.
I've removed it two times so maybe the bracket has loosened up a bit.
Good Luck.
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