HVAC Programmer...help! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat
GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Go Back   GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat > Pontiac Bonneville > 1992-1999

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

LinkBack Thread Tools Search this Thread
Old 03-18-2007, 08:45 PM   #1
Senior Member
Posts like a Corvette
Join Date: Jan 2007
Location: San Diego, CA
Posts: 1,451
Thanks: 0
Thanked 0 Times in 0 Posts
agrazela is on a distinguished road
Default HVAC Programmer...help!

My dash vents won't blow, and I think I've got the collapsed nipple in the programmer vacuum manifold thing like in these threads:


I've confirmed that I got vacuum coming to the pink line. What I want to do is remove the manifold, but I can't for the life of me get that nut off (red arrow):
Click the image to open in full size.

Anyone know for sure what size it is? I've tried 6, 7, 8 mm deep sockets, but I can't even get the socket to seat on that nut, as it is so recessed. Any trick I'm missing here?
2004 Buick Lesabre Limited, Gran Touring; Bone Stock

1998 Buick Lesabre Limited, Gran Touring; Mods: Poly sway bushings/endlinks, Tru-Cool trans cooler, Thrasher shift kit (med), PLIM, front PEM; Mods in progress: Alot of stuff, but slowly...
agrazela is offline   Reply With Quote
Old 03-19-2007, 11:42 AM   #2
Certified GM nut
Join Date: Jul 2004
Location: West Point, Utah - Village Idiot
Posts: 1,606
Thanks: 0
Thanked 2 Times in 2 Posts
SSE Motorhead is on a distinguished road

It'* 7mm. A Craftsman 7mm socket driver (looks like a screwdriver with a 7mm socket on the end) will work. It has a hollow shaft and will fit right on.

Once you get the nut off, use a small common screwdriver and carefully pry around the edge of the plastic manifold. They're stuck on there pretty good. Just make sure you don't cut the manifold. Work slowly, it'll come off.
SSE Motorhead is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
HVAC Programmer issue? AC only blows through defrost vents 6781camaro 1992-1999 11 04-03-2016 07:19 PM
97 bonny HVAC Programmer actuator and head kevinmcf 1992-1999 1 09-26-2009 02:00 PM
HVAC Programmer--hypothetical/technical question eazhar 1992-1999 1 08-14-2006 12:00 PM
hvac programmer jdq 1987-1991 16 01-08-2006 01:06 AM
HELP!! Where is the programmer?? TrueWildMan 1992-1999 29 08-26-2003 12:26 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 11:44 PM.