Do you have a step-by-step procedure for changing a 2015 Silverado 4.3 engine?

GORDWILLIAM

MEMBER
2015 CHEVROLET SILVERADO
4.3L
V6
4WD
AUTOMATIC
335,000 MILES

Hi. I have a 2015 Chevrolet Silverado with a V6 4.3 liter engine that needs to be replaced. It has 335,000 km and both lifters and bearings are bad. I’m looking at replacing it with a 4.3 litre out of a 2016 Chev Silverado but I can’t find a procedure. Do you have a step-by-step procedure for changing a 2015 Silverado 4.3 engine? Is it easier to pull the engine and transmission together or is that more difficult? The truck is 4x4. Thank you for your help. It’s very appreciated.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
42,895 POSTS

Yep, you should start by draining the coolant and disconnecting the battery. The AC system will need to be vacuumed down and recharged. This video as well will show you how:

https://youtu.be/4EqdrBVb0sY

Also, if the torque converter slides out of the transmission it will need to be reinstalled or you will damage the front pump and the transmission will not work. This video will show you how.

https://youtu.be/ZC7xHVMKLRw

Here are the step-by-step engine removal and installation instructions including torque specs in the diagrams below. Check out the images (below). Please let us know if you need anything else to get the problem fixed.

Images (Click to make bigger)