Express & G-Series Vans Offered in both a full size van, or a large box truck, the Express is the modern GM workhorse

Chevrolet Express
Platform: GMT Van

Heater blowing cold.

Thread Tools
 
Search this Thread
 
Old October 8th, 2012, 10:44 AM
  #1  
CF Beginner
Thread Starter
 
squirberius's Avatar
 
Join Date: Oct 2012
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default Heater blowing cold.

I bought a cherry '95 (66k miles, the drivers chair feels the same as the other 3 captains chairs) G20 this Summer, decked out mighty nice. Auto reverse cassette, TV, VHS, 4 way ambient lighting, 4 captains chairs, massage seats, reclining bench/ bed in the back, etc.

To the point: Now that the Midwest Autumn has arrived, I notice that the heater blows cool air. Sustainable for now, but unacceptable come winter.

Any sage advice out there on this one?

Peace!

Mike
Attached Thumbnails Heater blowing cold.-sherrod-you-.jpg  
Old October 8th, 2012, 11:10 AM
  #2  
CF Monarch
 
kevinkpk's Avatar
 
Join Date: Jul 2011
Location: kevinkpk
Posts: 5,917
Received 138 Likes on 130 Posts
Default

Several things here. What is the coolent temp at operating temp? Does it blow air out all vents or just defrost, or just in one outlet, i.e. floor vents? Is the heater hoses warm/hot when at temp? Need these inpute to continue.
Old October 9th, 2012, 8:24 AM
  #3  
CF Beginner
Thread Starter
 
squirberius's Avatar
 
Join Date: Oct 2012
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the response Kevinkpk. Might take another day or so before I can get these answered (not the daily driver).

I'll let you know.

Mike
Old November 16th, 2012, 8:39 AM
  #4  
CF Beginner
Thread Starter
 
squirberius's Avatar
 
Join Date: Oct 2012
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default

I figured it out. The heat blows when I have it set on vent. So I guess there are some input hoses transposed.
Old October 16th, 2019, 4:27 AM
  #5  
CF Beginner
 
craig0814's Avatar
 
Join Date: Oct 2019
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

I have a 2015 Chevrolet camaro convertible, a body shop put a new bumper on the car, then i noticed my heater was blowing cool air. Found out there is a rear compartment fuse box with the fuse F28 that is the Air Condition/Heater Ventilation fuse, wondering if they disconnected that fuse box some way, or the fuse is blown after the rear bumper installation, the gut who installed the new bumper says its my thermostat stuck open
Old February 29th, 2020, 7:33 AM
  #6  
CF Beginner
 
phil schneider's Avatar
 
Join Date: Feb 2020
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

99 chevy tahoe LS I'm not getting heat when heat is off the temp will get to like 150 once I turn on the heat the temp gauge goes down to like 120-130 nothing but cold air...i changed thermostat already but nothing changed..help please!?
Old February 29th, 2020, 1:02 PM
  #7  
Super Moderator
 
mountainmanjoe's Avatar
 
Join Date: Feb 2017
Posts: 5,783
Received 612 Likes on 553 Posts
Default

make sure there is enough coolant and you get rid of trapped air.

Also, try the Tahoe section.
No idea why people are posting random vehicles in the Van section.
Old March 1st, 2020, 8:56 PM
  #8  
CF Junior Member
 
toolhore's Avatar
 
Join Date: Jan 2015
Location: Northern Colorado
Posts: 30
Likes: 0
Received 1 Like on 1 Post
Default

I discovered recently that many late model vehicles have a door that opens and closes when you turn the temp **** on the dash board. The opening and closing is what dictates the temp of the air coming out the inside vents. A mechanic informed me that many vehicles have had issues with the door not closing entirely thus allowing cold air in the heater compartment which reduces the temp of the hot air that is suppose to come into the vehicle. You would have to remove the cover from the compartment that houses the small radiater that is suppose to supply hot air to the inside of the vehicle and operate the temp control **** to determine if the door is closing completely and tightly.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
as2higpark
S-10 & Blazer
11
November 25th, 2020 10:59 AM
methods
Tahoe & Suburban
5
November 29th, 2017 2:25 PM
ltzboy
Tahoe & Suburban
2
December 29th, 2009 8:17 PM
smithguy
Tahoe & Suburban
6
July 3rd, 2007 11:28 PM
Kharn
S-10 & Blazer
0
June 12th, 2007 6:38 AM



Quick Reply: Heater blowing cold.



All times are GMT -5. The time now is 9:35 PM.