PCM location

[oldsledz]

OK, I admit I am a dummy here in the electronic world, but where exactly is the PCM located. Need to send to Bryan at PCm For Less to do the 4:56 speedo correction. 05 -- 6 speed. Thanks

Oldsledz

[ssrtruck]

Left side of truck, under hood, just right of the fuse block.
Under a black plastic cover. Two push pins in plastic cover. Remove cover, unplug unit, slide out of bracket.

[oldsledz]

Opened the hood of the SSr last night to find the PCM and it looks like there are 3 plug connections on the drivers side just behind the fuse block towards the master cylinder and the clutch fluid container. The first one is very small and square, the next 2 are rectangular and you squeeze the sides of the plug and they both "cam" over and come apart. They look like pin connectors you may find on a PC so I am not sure if I am looking in the right place for the PCM. Please advise. Thanks *******

[ssrtruck]

Originally Posted by oldsledz

Opened the hood of the SSr last night to find the PCM and it looks like there are 3 plug connections on the drivers side just behind the fuse block towards the master cylinder and the clutch fluid container. The first one is very small and square, the next 2 are rectangular and you squeeze the sides of the plug and they both "cam" over and come apart. They look like pin connectors you may find on a PC so I am not sure if I am looking in the right place for the PCM. Please advise. Thanks *******

No. ONE IS THE HARNESS THAT LEADS TO THE PCM, but THE PCM IS DISCONNECTED RIGHT AT THE PCM. It is located forward of the fuse box.
It is lower than the fuse block. Take the two plastic push pins out of the cover, and take the cover off. The PCM is aluminum, finned. It slides into the bracket from the back. Slide it toward the rear of the truck to remove.
If you want to , you can go to MAGNUSON SUPERCHARGER site, and get the exact instructions there.

[oldsledz]

Got it!!! Thank you.