ECU

[urlookn22s]

i own a 2005 GMC sierra with a 5.3 in it and i was just woundering.. where my ecu is and how do i take it out?? and also how do i take out my cluster.. thanks..

[boomer 33]

i own a 2005 GMC sierra with a 5.3 in it and i was just woundering..  where my ecu is and how do i take it out??  and also how do i take out my cluster..  thanks..

 

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If you are talking about the main computer it is in the front driver side of the engine compartment close to the battery. There is a plastic cover to remove. Then two small bolts that hold the harness connectors if I remember correctly. Disconnect the negative side of the battery first so you won't short anything out. It takes just a few minutes to get it out.

As far as the cluster, I have not done that but if you will do a search for "cluster" there surely would have been someone that has posted before.

[urlookn22s]

thanks alot... anyone else kno about the cluster??

[boomer 33]

did u search?

[urlookn22s]

kinda... i didnt really find much... i just hope someone can post it up on here.. ya kno... cuz i hate my stock cluster ya kno!!

[boomer 33]

Well, I took mine off years ago on another truck and it was not difficult, I just can not remember the process. But, I just started slowly puliing on edges, finding where they were attached and dealing with it as it played out. I think it just really snaps in place, but if you trash your connectors they "have more at the store". If you break your dash, forget I told you this.

 

Also, don't perform the disassembly if you have had more then three adult beverages.

[Radon]

what you should do is go and buy a haynes book or one of the other brands. I've had one for every car/truck i've ever owned. if you cant find out how to do anything from these books you probably shouldn't do it IMO.

[grayghst]

If you remove the front trim on the dash (it should just pull right off). There are 4 7mm screws to remove and it pulls right out. There is a wire harness attached to the back.