Recommended Posts


On ‎6‎/‎14‎/‎2018 at 12:38 AM, Kingchevy87 said:

Try to out a 5.3 in my 2011 cts coupe has anyone done this before 

Not without a lot of trouble, stock is a 3.6L?   Keep in mind that the engine and transmission operate as a single unit, the PCM looks for specific data from sensors like ABS, traction control,  cam, crank, etc. 

Why do you want to do this? 


Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

Share this post


Link to post
Share on other sites
6 hours ago, Kingchevy87 said:

I purchased the car with no engine and I have a donor car I can get the 5.3 engine and tranny from  but I’ve dint my research and I’m going to move forward with the swap 

I will be interested in seeing how you interface with the abs, IPC, traction control, gear ratio, speed sensitive steering etc.  Keep us in the loop.

The problem is, you need the 5.3 PCM to operate the powertrain ,but that PCM can't communicate with the rest of the vehicle.  


Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.