I have a climate control problem

MIKEYP44

MEMBER
1998 CHEVROLET
169,879 MILES

I have a 1998 K1500 chevy pick-up 4by4 5.0 305 engine my question to you is my temperature control is not working properly what happens is when I change from cold to warm it takes a few minutes or days but it changes it does it also when I go from warm to

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HMAC300

MECHANIC
48,601 POSTS

What happens?

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Saturday, December 3rd, 2011 AT 8:54 PM

MIKEYP44

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2 POSTS

When I switch from cold to warm on my temperature control it does not switch over right away it takes awhile sometimes it changes over in a few minutes and sometimes a day or two

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Saturday, December 10th, 2011 AT 10:27 AM

HMAC300

MECHANIC
48,601 POSTS

This can be a vacuum or electrical problem depending on your system. There are actuators on your hvac unit that control heat as well as where it goes ( defrost, vent, floor heat) i'm sending a generic pic along of the actuators. They are either not getting good vacuum which could be a leak at control unit or not getting good vacuum from engine or the electrical isn't working correctly. Check your fuses and relay.

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