I've been having several problems with my a/c and heater. I got a brand new gm climate control, and it didn't solve any problems. My fan only turns up every great once in a while and it only works on full blast. My driver side doesn't adjust. I can't make it hot or cold, but the passenger side does. I tried pulling the fuses to reset that actuator. I heard them both move when I replaced them but it solved nothing. Can someone please help me out here. This is my daily driver and it hasn't worked for a month.

 

what faults do you have if any?

 

List your DTC Codes.

 

HVAC
b0361 h c
b0363 h

 

your faults are for a left side temp actuator.your blower motor is another issue

 

do they both need to be changed? There are no wires pinched or anything, on the driver's actuator. Should I just replace it? How hard is the blower motor to change?

 

Changed my LH actuator in my 99 vert, I used a different procedure from the GM service manual. I did not remove the instrument cluster & dash pad.

I went underneath from the driver side footwell, moved drivers seat all the way back.

1) remove the footwell trim panel, (2) push-in barb connectors and a stupid push nut holds in in place, remove the footwell light from panel. The knee bolster can stay in place

2) remove the (2) screws that hold the Bose Amp and lower to floor

3) with a light, looking up into the dash, about where the ignition switch should be, you can see the air muffler for the air cabin air temp sensor (1 1/2" dia x 2" long, surrounded in nasty/oily foam! ). Just to the left of that is the LH actuator. You have to remove the muffler to gain access to the actuator attachemnt screws.

4) remove the air muffler from the plastic ductwork (wiggle & pull apart)

5) remove (2) screws that hold the LH actuator to the heater case, it's a 7/32" hex (if I remember right)

6) slide actuator off control shaft.

7) remove connector

8) reach up & rotate control shaft just to make sure it's free to move

9) slide out from under dash & catch you breath! (I slid out about a dozen times to grab various tools)

10) have a beer

Reverse procedure to assemble.

Took about 1 hour.

My actuator, after further disassembly, had a cracked/split output gear. The actuator hub is press fit into this nylon gear. This bound up the geartrain preventing end-to-end calibration.

The little buggers (actuators retail) cost about $180. I bought a complete set of actuators & vacuum pulls off Ebay for $40. BTW, the LH & RH actuators are the same.

Have fun, just another way of intimately knowing your Corvette!

 

[QUOTE=bobc997615]Changed my LH actuator in my 99 vert, I used a different procedure from the GM service manual. I did not remove the instrument cluster & dash pad....

This is great information. This method saves a huge amount of time.