☰
Login
Join
×
Home
Answered Questions
Repair Topics
Repair & Service Guides
Popular Questions
Warning Lights
Trouble Codes
How It Works
Testing / Diagnostics
Symptoms
Videos
Login
Become a Member
Home
GMC
S15
Climate Control
Air Conditioner
Recharge
A/C vacuum control
1995 GMC S15
155,000 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC
RICHARDKLOVEN
MEMBER
1 POST
FOLLOW
Under acceleration cold air diverts to defrost vents.
Jul 2, 2017 at 7:36 AM
Advertisement
HMAC300
CERTIFIED EXPERT
48,601 POSTS
check for a leaking vacuum line or reservoir tank if you have one. you will have to start at engine and work your way back.
Jul 2, 2017 at 8:48 AM