The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 99-06 GMT800 Chevy and GMC Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-01-2020, 11:53 AM   #1
sdkid
Registered User
 
Join Date: Sep 2004
Location: Pierre SD
Posts: 1,533
04 Chevy 1500 A/C issue

Has the electronic panel with dual zone control. Driver side goes full heat sometimes. Can someone tell me the location of the actuator for the driver side?
__________________
I think the world needs a drink...

Help somebody...If you can....VanZant

We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men.
Tracy Byrd

Member# 13924
'70 c10, 350/350
'68 c10 250/4spd
'68 c10 no eng/trans fac ps/pb/ac/at
(future father/sons project)
'48 Chevy Loadmaster
sdkid is offline   Reply With Quote
Old 07-02-2020, 02:55 PM   #2
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,911
Re: 04 Chevy 1500 A/C issue

Driver side is on top of the heater box.
You have to pull the dash cover and the duct that passes over the top of the heater box.

The passenger side is a lot easier. Just pull the beauty cover and the actuator motor is right on the bottom of the heater box.

Have you tried resetting the HVAC controller?
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
hatzie is online now   Reply With Quote
Old 07-02-2020, 03:48 PM   #3
Bob B.
Senior Member
 
Join Date: Aug 2005
Location: Los Angeles
Posts: 1,296
Re: 04 Chevy 1500 A/C issue

Hold it, I think the left (driver's side) temp actuator is the one on the bottom of the HVAC case. BTW, sometimes you can get the top temp. actuator off by removing the radio and reaching in. By all means try the reset first, that often fixes the problem.
__________________
1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.
Bob B. is offline   Reply With Quote
Old 07-06-2020, 04:32 PM   #4
sdkid
Registered User
 
Join Date: Sep 2004
Location: Pierre SD
Posts: 1,533
Re: 04 Chevy 1500 A/C issue

How do I do the reset?
__________________
I think the world needs a drink...

Help somebody...If you can....VanZant

We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men.
Tracy Byrd

Member# 13924
'70 c10, 350/350
'68 c10 250/4spd
'68 c10 no eng/trans fac ps/pb/ac/at
(future father/sons project)
'48 Chevy Loadmaster
sdkid is offline   Reply With Quote
Old 07-06-2020, 06:59 PM   #5
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,911
Re: 04 Chevy 1500 A/C issue

03-07 AUTOMATIC HVAC with the digital display.
  1. Start the truck and set the HVAC controls to AUTO.
  2. Shut off the truck
  3. Pull the HVAC/ECAS fuse in the underhood fuse relay block.
  4. Leave the fuse out for 2 full minutes.
  5. Re-install the fuse.
  6. Start the truck and wait til the HVAC finishes calibrating all the motors. It'll take a couple minutes.
  7. Switch the truck off for full 15-20 seconds.
  8. Restart the truck and check that it works now.


__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.

Last edited by hatzie; 07-06-2020 at 07:29 PM.
hatzie is online now   Reply With Quote
Old 07-08-2020, 10:59 PM   #6
sdkid
Registered User
 
Join Date: Sep 2004
Location: Pierre SD
Posts: 1,533
Re: 04 Chevy 1500 A/C issue

Thank you Hatzie!!!
__________________
I think the world needs a drink...

Help somebody...If you can....VanZant

We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men.
Tracy Byrd

Member# 13924
'70 c10, 350/350
'68 c10 250/4spd
'68 c10 no eng/trans fac ps/pb/ac/at
(future father/sons project)
'48 Chevy Loadmaster
sdkid is offline   Reply With Quote
Old 07-09-2020, 04:34 PM   #7
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,911
Re: 04 Chevy 1500 A/C issue

Did it work for you?
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
hatzie is online now   Reply With Quote
Old 07-11-2020, 11:08 AM   #8
sdkid
Registered User
 
Join Date: Sep 2004
Location: Pierre SD
Posts: 1,533
Re: 04 Chevy 1500 A/C issue

Seemed ok until this morning. I've had it full cold. This morning I turned it to 70ish, then it went full hot on the driver side.
__________________
I think the world needs a drink...

Help somebody...If you can....VanZant

We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men.
Tracy Byrd

Member# 13924
'70 c10, 350/350
'68 c10 250/4spd
'68 c10 no eng/trans fac ps/pb/ac/at
(future father/sons project)
'48 Chevy Loadmaster
sdkid is offline   Reply With Quote
Old 07-11-2020, 03:22 PM   #9
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,911
Re: 04 Chevy 1500 A/C issue

Just looked at the service books. I was incorrect. The RH blend motor is on top of the airbox.
The LH motor is on the bottom of the HVAC box under the beauty cover and it's darn easy to R&R.
I've read conflicting information. I trust GM.

Pull the heater fuse referenced above before you remove the motor and don't plug it back in til the new one is installed and you're ready to calibrate it.

Re-cal the system after you finish installing the motor.
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
hatzie is online now   Reply With Quote
Old 07-15-2020, 06:32 PM   #10
sdkid
Registered User
 
Join Date: Sep 2004
Location: Pierre SD
Posts: 1,533
Re: 04 Chevy 1500 A/C issue

Thank you sir. I will update you.
__________________
I think the world needs a drink...

Help somebody...If you can....VanZant

We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men.
Tracy Byrd

Member# 13924
'70 c10, 350/350
'68 c10 250/4spd
'68 c10 no eng/trans fac ps/pb/ac/at
(future father/sons project)
'48 Chevy Loadmaster
sdkid is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:24 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com