HOME
ASK A QUESTION
REPAIR GUIDES
BECOME A MEMBER
LOG IN
Login with Facebook
OR
Remember me
NOT A MEMBER?
FORGOT PASSWORD?
CONTACT US
PRIVACY POLICY
TERMS AND CONDITIONS
☰
Home
GMC
Sierra
Climate Control
Heater
GMC SIERRA HEATER
Select Make
All Makes
Acura
Alfa Romeo
AMC
Aston Martin
Audi
Bentley
BMW
Buick
Cadillac
Chevrolet
Chrysler
Citroen
Daewoo
Daihatsu
Datsun
Dodge
Eagle
Ferrari
Fiat
Fisker
Ford
Geo
GMC
Holden
Honda
Hummer
Hyundai
Infiniti
International
Isuzu
Jaguar
Jeep
Kia
Lancia
Land Rover
Lexus
Lincoln
Mazda
Mercedes Benz
Mercury
Merkur
MG
Mini
Mitsubishi
Nissan
Oldsmobile
Opel
Peugeot
Plymouth
Pontiac
Porsche
Proton
Ram
Renault
Rolls Royce
Rover
SAAB
Saturn
Scion
SEAT
Skoda
Smart
Subaru
Suzuki
Tesla
Toyota
Triumph
Vauxhall
Volkswagen
Volvo
Select Model
All Models
Acadia
C1500
C2500
C3500
Canyon
Envoy
Jimmy
S15
Safari
Savana
Sierra
Sierra Hybrid
Sonoma
Sprint/Caballero
Suburban
Syclone
Terrain
Truck
Typhoon
Van
Vandura
Yukon
Yukon Hybrid
Found 25 results
Select a filter to limit the results
Click
Control Valve
Fuse
Heater Core
Hose
Not Working
Relay
Switch
Heater Not Working?
My Heater Will Only Blow Heat If I Put The Temperature To Above 86 Degrees. Anything Under That Is Will Blow Cold Air.
Asked by
Nick Dozier
·
29 ANSWERS
8 IMAGES
2011
GMC SIERRA
VIDEO
Heater Not Working
Instructional repair video
GUIDE
Heater
Once the engine has been started and has run long enough to warm up the hot coolant is transferred into the heater core which is located inside the passenger compartment via...
Heater Not Working Properly?
Truck Listed Above V6 3.5, Heater Vent Value Cabin Sticks Sometimes Open Had Heat. Sometimes Close No Heat. Only 196,000 Kms.
Asked by
Anonymous
·
37 ANSWERS
2 IMAGES
2003
GMC SIERRA
Where Is The Heater Core Located And How To Replace It...
Hello, I Was Wondering Where My Heater Core Is Located And How To Change It Out?
Asked by
sbdavis34
·
1 ANSWER
5 IMAGES
1993
GMC SIERRA
1990 GMC Sierra Pictorial Diagram Of Heater Core...
I Need To Replace The Heater Core. I Cannot Find Sufficent Information For Removal And Replacement Of The Core And The Plastic Box It Is...
Asked by
cmsgtsmith
·
7 ANSWERS
1990
GMC SIERRA
Heater Not Working
The Arrow On The Temp. Control, Flash All The Way Across, Won't Adjust Heat. I Have Replaced The Control Unit And It Does The Same...
Asked by
desertrat52
·
13 ANSWERS
1 IMAGE
1994
GMC SIERRA
2001 GMC Sierra Heater Core
Coolant Leaking From Tube Under Ac System In Engine Area. Heater Core Bad? What The Easiest Way To Replace Heater Core?
Asked by
Jrmike34
·
1 ANSWER
2001
GMC SIERRA
GUIDE
Heater Not Working
Step 1 - A heater cannot operate unless the engine is full of coolant/antifreeze. If coolant level is low check the system for leaks.
The Heater Blowing Cold Air All The Time?
Replaced Climate Control Board. Blend Door Actuator And Mix Air Actuator. Thermostat. No Bubbling Or Clicking But Control Board Is Flashing...
Asked by
Stacey Smith Crawford
·
1 ANSWER
1994
GMC SIERRA
1988 GMC Sierra Heater Core
My Heater Core Is Leaking Coolant Into The Cab Of My Truck And Underneath My Heater Core Is A Small Puddle Of Coolant Every Day When I Go...
Asked by
curtis558
·
3 ANSWERS
1988
GMC SIERRA
2002 GMC Sierra Heater Coil - Hose Connectors
Who Makes And Sells A Tool To Release The Dorman Connectors Which Hold The Heater Hoses To The Heater Coil? I Tried Several Auto Parts...
Asked by
markbruehl
·
6 ANSWERS
2002
GMC SIERRA
1990 GMC Sierra Heater Core Replacement
Im Trying To Change My Heater Core For My 5.7 Liter K1500 But My Boss Wont Take The Time To Help Me. (I Work In An Auto Shop Haha, Trainee...
Asked by
finalfantasy7001
·
1 ANSWER
1990
GMC SIERRA
PREV
1
2
3
NEXT
Ask a new GMC Sierra question
Ask a Car Question. It's Free!
