07 tahoe ac

[Bronson357]

OK so my tahoe was blowing slightly cold air, got it recharged worked well for a day and the front hvac will not turn on. Rear does though, any suggestions? Thanks

 

[mikez71]

If there is cold air in the back.. but not up front, shouldn't be a charge issue..
Maybe a blend door actuator going out up front ?

The A/C light lights up normally?

Scan for codes.

 

[Fless]

Would you expand on what "the front hvac will not turn on" means? The module won't turn on? The HVAC head turns on but the fan won't blow? Or ???

 

[tom3]

Did you try the high fan setting?

 

[Bronson357]

Update, checked the usual suspects, replaced the bmr, front fan kicked on almost blew my hat off,put the cover back on,next morning nothing, little upset pulled the cover down and the wires going from the bmr to fan ,especially on the the motor were not secured well(in somewhere along the line felt like someone just yanked the plug, still all gm part numbers on all) I had to push the plug tightly into the blower motor and it seems good,
Worse case if you buy the dorman bmr it comes with that pig tail so maybe a known problem?
I felt mine snap back in so I shall see

 

[Bronson357]

OK so update dug a little deeper and the pigtail from the bmr to fan were practically melted together right by the fan so me messing with them did nothing permanent, replaced with a heavier duty pigtail 14"(slightly longer) and probably did not need the bmr. Easy to check and drove 1500 miles without a hiccup. 100° and heavy humidity worked great and didn't even use the rear ac with passengers and no complaints. Thanks

 

[Bronson357]

So lesson learned try the cheap and easy stuff 1st lol