2009 gmc 4.8 liter v8 ext.cab w/t - air condition

[kamikaze6950]

does anyone know what is the temp setting of the air-condition cause my doesn't get cold like it use to when it was brand new... is this common w/ big trucks? dealermech. said the air -condition was work fine ...very dis satified about this on this truck

 

[Molson02536]

does anyone know what is the temp setting of the air-condition cause my doesn't get cold like it use to when it was brand new... is this common w/ big trucks? dealermech. said the air -condition was work fine ...very dis satified about this on this truck

Best bet is to bring your Sierra to a Air conditioning shop. The tech at the dealer may not have enough experience with the way the A/C system works and what the best high and low side readings should be from the manifold gauges.

Good luck and keep us posted, could be the system may just be a little low on R134a and will need to be recharged.

 

[kamikaze6950]

Best bet is to bring your Sierra to a Air conditioning shop. The tech at the dealer may not have enough experience with the way the A/C system works and what the best high and low side readings should be from the manifold gauges.

Good luck and keep us posted, could be the system may just be a little low on R134a and will need to be recharged.

thanx, really apprciate it

 

[GMC Customer Service]

If you are unsatisfied with the service that you got at the original dealership you went to then you may also try another dealership for a second opinion. I apologize but I do not have information on how cold the air conditioning in your vehicle is supposed to be but a dealership's service staff should be able to diagnose most if not all problems you have with the vehicle. Also if you do take the vehicle into the dealership you should still be covered by the 3 year 36,000 mile bumper to bumper warranty, under normal circumstances. I hope this helps you. If you run into additional problems feel free to contact me.

Jeff Morris, GMC Customer Service

 

[kamikaze6950]

problem fixed

If you are unsatisfied with the service that you got at the original dealership you went to then you may also try another dealership for a second opinion. I apologize but I do not have information on how cold the air conditioning in your vehicle is supposed to be but a dealership's service staff should be able to diagnose most if not all problems you have with the vehicle. Also if you do take the vehicle into the dealership you should still be covered by the 3 year 36,000 mile bumper to bumper warranty, under normal circumstances. I hope this helps you. If you run into additional problems feel free to contact me.

Jeff Morris, GMC Customer Service

thanx, it turns out that i didn't set it for inside air , the default is outside air & to help the air-condition you roll down the window found out when my brother was riding with me, he has an newer car too. its not like the older cars where the air-condition stays at the same setting... thanx again now i'm glad it was a simple fix... My wife & I can enjoy our GMC again.....the best truck we had (we upgraded from a canyon because we loved the GMC quick acceleration so much)

 

[GMC Customer Service]

I'm glad it was such an easy fix for you. If you end up having any other issues or problems feel free to contact me.

Jeff Morris, GMC Customer Service