Kennedy.engine
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Hello, I’ve stumble across this forum quite a bit looking for info while doing my duramax swap but this is my first post.
I’m in the process and have been for awhile of doing an LLY/Allison swap into a 1999 gmt400 k1500 gmc suburban.
I’ve run into quite a few issues but I am looking for some info about getting the AC to function.
Everything in the ac system is from the suburban, including the compressor which mounted perfectly onto the duramax.
Using alldata it looks like the ac control for the suburban goes through the VCM of the gas engine (which I have removed).
The duramax engine harness and ecm also have ac controls.
I’m wondering if I will need to install the VCM back in place just to get the ac to function? Or can I bypass the whole suburban control system and make a stand alone system using the duramax ecm and wiring?
I apologize for such a long post and I’d like to thank anyone in advance for helping out.
I’m in the process and have been for awhile of doing an LLY/Allison swap into a 1999 gmt400 k1500 gmc suburban.
I’ve run into quite a few issues but I am looking for some info about getting the AC to function.
Everything in the ac system is from the suburban, including the compressor which mounted perfectly onto the duramax.
Using alldata it looks like the ac control for the suburban goes through the VCM of the gas engine (which I have removed).
The duramax engine harness and ecm also have ac controls.
I’m wondering if I will need to install the VCM back in place just to get the ac to function? Or can I bypass the whole suburban control system and make a stand alone system using the duramax ecm and wiring?
I apologize for such a long post and I’d like to thank anyone in advance for helping out.