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
Heater Core
GMC SIERRA HEATER HEATER CORE
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 8 results
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
VIDEO
Heater Not Working
Instructional repair video
GUIDE
Heater Core Replacement
A heater core is positioned inside the car and is part of the HVAC system. Hot engine coolant is run through the core which air is blown through via the blower motor which ...
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
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
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
VIDEO
Cooling System Pressure Test For Leaks
Instructional repair video
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
1998 GMC Sierra Heater Core
How Do I Replace The Heater Core On My Pickup?
Asked by
dlbarquest
·
1 ANSWER
1998
GMC SIERRA
GUIDE
Heater Hose Replacement
Heater hoses transfer hot engine coolant into the heater core where it's processed into warm air and utilized by the heater system. Some systems are designed with a fluid...
1999 GMC Sierra Cold Air Goes To Hot
Truck A/c System Will Blow Cold Air Sometimes Usually For About 20 Mins. Then Will Start Blowing Hot If You Cut The A/c Off For About 20...
Asked by
Jarred318
·
1 ANSWER
1999
GMC SIERRA
1999 GMC Sierra Heating Problems
Since The Weather Turned Cold, When I Call For Heat In The Cab Of The Truck I Only Get Cold Air. I Have Checked The Hoses Going To The...
Asked by
John Martin
·
1 ANSWER
1999
GMC SIERRA
Ask a new GMC Sierra question
Sponsored links
Ask a Car Question. It's Free!
SPONSORED LINKS
Online car repair manuals