2012 Tahoe SSV

[coolvermicelli]

I'll consider a tune if I decided to commit to the car. For now I'm riding on Manual and go to gear 6 only when I'm on the highway, so far so good, I've drove it around for a week and found a few other things about it that might need to be addressed.

1. Car squeaks doing low speed turns, I assume this is due to ball joints needing some grease. Would injecting some grease with a needle gun help? I'll have to buy the gun since I don't have one.
2. The car rumbles slightly when idling. I'm not sure if it's normal or not since I have no other Tahoe to refer to, but the vibration is enough that I can see the rearview mirror shake slightly, phone on a mount also. Both front passenger and me can tell that it's vibrating when idling.
3. Mine have a foglight, but the light control switch have no fog light button hah, I'm going to replace the switch with one that does and see if that will let me use fog lights. Edit: New switch still won't make fog lights turn on, I guess it is how it is.
4. Car have 9G8 RPO - Auto light delete, so lights don't turn on automatically. I've contacted a few Chevy dealers in the area but they're all very hesitant to help, said that GM now requires them to submit tickets to ask for instructions on how to remove the code. Finger crossed maybe I can get a dealer to help with this.
5. Reader gave off code P0138 - O2 Sensors high voltage, there's no light on the dash or anything that seems to cause issues, but should I be concerned about this or just ignore it?

 

[RooTBeeRthe1st]

I'll consider a tune if I decided to commit to the car. For now I'm riding on Manual and go to gear 6 only when I'm on the highway, so far so good, I've drove it around for a week and found a few other things about it that might need to be addressed.

1. Car squeaks doing low speed turns, I assume this is due to ball joints needing some grease. Would injecting some grease with a needle gun help? I'll have to buy the gun since I don't have one.
2. The car rumbles slightly when idling. I'm not sure if it's normal or not since I have no other Tahoe to refer to, but the vibration is enough that I can see the rearview mirror shake slightly, phone on a mount also. Both front passenger and me can tell that it's vibrating when idling.
3. Mine have a foglight, but the light control switch have no fog light button hah, I'm going to replace the switch with one that does and see if that will let me use fog lights. Edit: New switch still won't make fog lights turn on, I guess it is how it is.
4. Car have 9G8 RPO - Auto light delete, so lights don't turn on automatically. I've contacted a few Chevy dealers in the area but they're all very hesitant to help, said that GM now requires them to submit tickets to ask for instructions on how to remove the code. Finger crossed maybe I can get a dealer to help with this.
5. Reader gave off code P0138 - O2 Sensors high voltage, there's no light on the dash or anything that seems to cause issues, but should I be concerned about this or just ignore it?

It should idle buttery smooth.
Mine has a little "miss" rough idle from time to time that I need to figure out.
Definitely could be oxygen sensors.

 

[swathdiver]

Almost everyone's car falls under the Severe Service Schedule, especially cop cars. Dirty, worn out, non-spec oil is AFMs and VVTs worst enemy. Transmission fluid is dead after about 42K miles.

The engine mounts in these cars are fluid filled but break after time and the fluid leaks out. If you pop the hood and power brake the car, with someone watching the motor, if it rises a bit, it's time for a new engine mount on the driver's side.

 

[RooTBeeRthe1st]

Almost everyone's car falls under the Severe Service Schedule, especially cop cars. Dirty, worn out, non-spec oil is AFMs and VVTs worst enemy. Transmission fluid is dead after about 42K miles.

The engine mounts in these cars are fluid filled but break after time and the fluid leaks out. If you pop the hood and power brake the car, with someone watching the motor, if it rises a bit, it's time for a new engine mount on the driver's side.

Yeah, I was actually able to see under the Gap in the hood when I power bricked it and saw it jump up my self.
But it also made a big clunk noise when I would accelerate

 

[swathdiver]

Yeah, I was actually able to see under the Gap in the hood when I power bricked it and saw it jump up my self.
But it also made a big clunk noise when I would accelerate

The clunk is for the same reason, busted mount.

You can either replace it with another fluid filled mount or use the solid H3 Hummer mount. It'll transfer more vibration into the cab but will last longer under spirited driving and racing.

15854941 or 25847739

 

[RooTBeeRthe1st]

The clunk is for the same reason, busted mount.

You can either replace it with another fluid filled mount or use the solid H3 Hummer mount. It'll transfer more vibration into the cab but will last longer under spirited driving and racing.

15854941 or 25847739

Yeah, that's how I found out I had that issue. Bought it with a broken mount.
At the time just did a stock replacement. It's last 100k so far. But I did buy the h3 mounts after someone mentioned those a few years ago.
I'll put them in with the aluminum engine in.