Questions about heater core process
Thread Starter
Melting Slicks
Joined: Jan 2010
Posts: 2,024
Likes: 4
From: Austin TX
Questions about heater core process
I searched for a while and couldn't find a specific fastguy process. Do I have to drain the radiator, or can I just clamp the hoses? Are the hoses the 2 thick ones near the passenger side?
Edit:
Also, I'm correct in assuming I should disconnect the battery?
Edit:
Also, I'm correct in assuming I should disconnect the battery?
Last edited by Azriel; Apr 12, 2010 at 12:32 PM.
Race Director
Joined: Jan 2000
Posts: 16,488
Likes: 25
From: USA. Northern Virginia
Yes-always disconnect the battery
Yes-its the 2 thick hoses leading into the cockpit
Yes-drain the rad, you'll want to replace the coolant with fresh fluids
NO
there is no fast way to do the job
Keep searching the forum here in the C4 section, there are about 10 threads dealing with the heater core subject, also google it
Yes-its the 2 thick hoses leading into the cockpit
Yes-drain the rad, you'll want to replace the coolant with fresh fluids
NO
there is no fast way to do the jobKeep searching the forum here in the C4 section, there are about 10 threads dealing with the heater core subject, also google it
Instructor
Joined: Mar 2006
Posts: 127
Likes: 0
From: Stockbridge GA
Go ahead and set aside a weekend to do the job. You have to pull the dash to do the job. No other way.
And yes change the fluids. And while yo uare at it, replace the hoses. Only a few more dollars and well worth it unless the hoses are brand new already.
And yes change the fluids. And while yo uare at it, replace the hoses. Only a few more dollars and well worth it unless the hoses are brand new already.
Team Owner
Joined: Jan 2003
Posts: 20,322
Likes: 248
From: Summerland B.C. Canada
You don't have to pull the dash, remove the seat and work from below. 2+ hours, depending how handy you are. 
http://forums.corvetteforum.com/c4-t...ol-delima.html
http://forums.corvetteforum.com/c4-t...ol-delima.html
Thread Starter
Melting Slicks
Joined: Jan 2010
Posts: 2,024
Likes: 4
From: Austin TX
You don't have to pull the dash, remove the seat and work from below. 2+ hours, depending how handy you are.
http://forums.corvetteforum.com/c4-t...ol-delima.html
http://forums.corvetteforum.com/c4-t...ol-delima.html
Alrighty, I'm pretty much at the point where I take the actual heater core out. I have to either drain my radiator, which I would need advice on, or I'd have to clamp off the hoses, which I'd prefer if it was simpler.
Thread Starter
Melting Slicks
Joined: Jan 2010
Posts: 2,024
Likes: 4
From: Austin TX
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Melting Slicks
Joined: Jan 2010
Posts: 2,024
Likes: 4
From: Austin TX
You can add me to the list of people who have successfully replaced their heater core. Started at 11 AM, worked until 3:30 AM. Went to a friend's house from 7 to 11, and spent some time with the girlfriend, before she killed me for working on the car so long. But it got done, everything works, and I managed to not break anything!
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
You can add me to the list of people who have successfully replaced their heater core. Started at 11 AM, worked until 3:30 AM. Went to a friend's house from 7 to 11, and spent some time with the girlfriend, before she killed me for working on the car so long. But it got done, everything works, and I managed to not break anything!
Safety Car
Joined: Jan 2004
Posts: 3,759
Likes: 8
What heater core did you go with?
And I've read that it is a good idea to run water through the core. Then blow the water out with compressed air before you remove the core. That helps keep coolant and water from getting into the car.
And I've read that it is a good idea to run water through the core. Then blow the water out with compressed air before you remove the core. That helps keep coolant and water from getting into the car.
Thread Starter
Melting Slicks
Joined: Jan 2010
Posts: 2,024
Likes: 4
From: Austin TX
I got the one at Advance Auto Parts. Don't remember what brand, all that matters is it came with a LLW and it actually fit in properly without having to bend it.
Advanced
Joined: Aug 2009
Posts: 58
Likes: 2
From: Denver CO
You can add me to the list of people who have successfully replaced their heater core. Started at 11 AM, worked until 3:30 AM. Went to a friend's house from 7 to 11, and spent some time with the girlfriend, before she killed me for working on the car so long. But it got done, everything works, and I managed to not break anything!
