Question: How to get at the ECM

[BuiltToWork]

I'm trying to swap out my ECM, and have the new part in hand.
I took the glove box out and can see the ECM but can't figure out how it's bolted in.
Am I going to have to remove the whole dash? Trying to avoid that if possible.
1990 K3500 454 TBI

Below is a pic of the frustratingly close ECM.

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[BuiltToWork]

A few more pics:

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[PlayingWithTBI]

There are spring clips holding it on the shelf. You can slide it to the left off the shelf, then disconnect the wire connectors.

 

[BuiltToWork]

There are spring clips holding it on the shelf. You can slide it to the left off the shelf, then disconnect the wire connectors.

Oh, so simple. Thank you! Will try it out tonight!

 

[Donald Mitchell]

You can see one of them in your first pic just up from that bolt head. I think theres only two.

 

[PlayingWithTBI]

I think theres only two.

Yep and you'll probably have to swap those clips over to your new ECM.

 

[BuiltToWork]

Thanks Donald and TBI. It worked, got the new ECM in and it fired up! No pic of the ECM, but there are pics of my truck in the shed now in my build thread:

Rebuild - But not Restore, K3500 Farm Truck

42 My plan for years was to get a hard working Truck and rebuild it from the ground up. Being Slightly OCD, I laid forth a plan. Truth Table: Buy A house with Acreage CHECK - 2 Acres (not a farm, but close enough) House has to have a detached Garage in the North 40 CHECK - See Pic below...

www.gmt400.com

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