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Old May 14, 2017 | 09:39 PM
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From: Tomball
Default 05 lq9

I need some help. I had a full pull out motor out of a 05 Denali and I had a few questions on a picture that I attached. I labeled two different items 1 & 2 in red for easier reference and I am not sure what they are supposed to go to. Vacuum lines maybe? Any help would be greatly appreciated! Also, does anyone have a picture of an LQ9 wiring harness to what each plug is used for? I have most of the wires/plugs hooked up already, but there are a few plugs left over that I dont know what they are for...
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Old May 15, 2017 | 10:48 AM
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#1 - Evap line that goes to the solenoid at the front top side of the intake.

#2 - Vacuum port on the back on the intake that goes to the brake booster in the trucks/SUVs.
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Old May 15, 2017 | 11:59 AM
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Ding ding winner.

#1 goes to the gas tank to relive pressure built up inside the tank. On the Denali it would have gone back to a vapor canister solenoid, the solenoid would connect to the charcoal box, and the box connects to the gas tank
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Old May 15, 2017 | 12:07 PM
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It looks like those head/s have been off before. The little heat thingy is on the back of the driver side head.
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Old May 15, 2017 | 12:23 PM
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Okay cool thanks guys. I'll just remove them and cap it.

The motor was a full pullout. I pulled the heads off to swap to Ls9 head gaskets.
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Old May 15, 2017 | 12:58 PM
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From: Longview, Tx
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Trans has been removed before as well. Noticed the non factory bolt in the bellhousing peeking out from behind the ground strap under #1.
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Old May 15, 2017 | 01:59 PM
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Yes I know. It had a 4l60e. The motor is out of an 05 Denali. I swapped it with a 4l80.
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Old May 15, 2017 | 10:25 PM
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Yes 100% sure
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Old May 16, 2017 | 07:26 AM
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Originally Posted by im-not-guilty
Are you 100% the Denali had a lq9
My wife has a 2004 Denali and it has a lq4 vin u
Just my .02
Whether it is an LQ4 or LQ9 really makes no difference in the questions being asked by the OP.
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