water loss problem
Thread Starter
Instructor
Joined: Feb 2006
Posts: 143
Likes: 0
From: floral city fl
water loss problem
hey guys need some help, i just replaced my heater hoses and upper rad. hose. filled up the rad. and started the engine to check for leaks. holly cow!!! the water was pouring out of the firewall under the heater hoses but not from the heater hoses. it looks like it was coming from a hole up under the firwall near the heater core inside. it was not leaking inside the car, but it drained the rad. in minutes. bad heater core or something else. i am a new owner of a vette and don't know much about vettes. any help would be nice.
p.s. i had planed to take it to a corvette show in my home town but not now
p.s. i had planed to take it to a corvette show in my home town but not now
Le Mans Master
Joined: Jan 2006
Posts: 8,319
Likes: 7
From: Wilmington DE, Drive it like you stole it, 68 327 4 speed coupe
Originally Posted by oh6driver
hey guys need some help, i just replaced my heater hoses and upper rad. hose. filled up the rad. and started the engine to check for leaks. holly cow!!! the water was pouring out of the firewall under the heater hoses but not from the heater hoses. it looks like it was coming from a hole up under the firwall near the heater core inside. it was not leaking inside the car, but it drained the rad. in minutes. bad heater core or something else. i am a new owner of a vette and don't know much about vettes. any help would be nice.
p.s. i had planed to take it to a corvette show in my home town but not now
p.s. i had planed to take it to a corvette show in my home town but not now
Bad heater core sounds like, you can bypass the heater core, wont win any prises, but at least you can drive it
tim
Melting Slicks
Joined: May 2003
Posts: 2,387
Likes: 2
From: Meriden CT
Did you have the car running before you changed the hoses? It does sound like a bad heater core. I'd say bypass it for now... If you plan on driving it in the cold, and want heat, then you can fix it.
Burning Brakes
Joined: Aug 2005
Posts: 1,126
Likes: 0
From: Hudson Falls, N.Y. 76 Vette Modified L-48
Originally Posted by JoeRags
Did you have the car running before you changed the hoses? It does sound like a bad heater core. I'd say bypass it for now... If you plan on driving it in the cold, and want heat, then you can fix it.
I'd re-check all the connections and if they are correct and tight and are the right diameter hose, then you should probably go with the above suggestion...if he was gonna enter it in a car show, one would think it was running...
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Problem is that you changed the heater hoses. They are attached to the core. Very fragile BTW especially when old. So the nipple is cracked away from the core. Unfortunately it will require replacing the heater core.
Race Director
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
Originally Posted by wombvette
Problem is that you changed the heater hoses. They are attached to the core. Very fragile BTW especially when old. So the nipple is cracked away from the core. Unfortunately it will require replacing the heater core.
How did you remove the old hoses from the core itself? It's tough, but the way to do it is to slice them along the length of the nipple and open the hose up like a sandwich. It's a PITA to do but then, so is the heater core.
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