Tahoe - Rear Heater Hose Replacement

patrickadouglas · December 9, 2009

I have a 2000 Tahoe and want to do a coolant flush with all new hoses. The hoses under the back of the truck going to the rear heat have the quick disconnects on one end (which I know I need to tool to remove) and appear to be a crimped fitting unto the metal tube on the other end. The dealer says the only option is to replace both AC and heater hoses and lines all the way to under the hood!! Has anyone just replaced the hose for the rear heat in the back of the vehicle? If so, what is the approach? Should i not just worry about it? 10 years old now and 115k miles

Nytemare · December 9, 2009

I have a 2000 Tahoe and want to do a coolant flush with all new hoses. The hoses under the back of the truck going to the rear heat have the quick disconnects on one end (which I know I need to tool to remove) and appear to be a crimped fitting unto the metal tube on the other end. The dealer says the only option is to replace both AC and heater hoses and lines all the way to under the hood!! Has anyone just replaced the hose for the rear heat in the back of the vehicle? If so, what is the approach? Should i not just worry about it? 10 years old now and 115k miles

Are the lines leaking???

If not...don't replace them....worry about that when they start leaking.

I would replace the hoses to the rad if they feel like they need replacing....Basically they will feel squishy if they are on they're way out.

patrickadouglas · December 10, 2009

I have a 2000 Tahoe and want to do a coolant flush with all new hoses. The hoses under the back of the truck going to the rear heat have the quick disconnects on one end (which I know I need to tool to remove) and appear to be a crimped fitting unto the metal tube on the other end. The dealer says the only option is to replace both AC and heater hoses and lines all the way to under the hood!! Has anyone just replaced the hose for the rear heat in the back of the vehicle? If so, what is the approach? Should i not just worry about it? 10 years old now and 115k miles

Are the lines leaking???

If not...don't replace them....worry about that when they start leaking.

I would replace the hoses to the rad if they feel like they need replacing....Basically they will feel squishy if they are on they're way out.

No - they aren't leaking but I'm trying to avoid a roadside breakdown - this could be a real mess on the road away from home if its that big of a deal to change

Nytemare · December 10, 2009

I have a 2000 Tahoe and want to do a coolant flush with all new hoses. The hoses under the back of the truck going to the rear heat have the quick disconnects on one end (which I know I need to tool to remove) and appear to be a crimped fitting unto the metal tube on the other end. The dealer says the only option is to replace both AC and heater hoses and lines all the way to under the hood!! Has anyone just replaced the hose for the rear heat in the back of the vehicle? If so, what is the approach? Should i not just worry about it? 10 years old now and 115k miles

Are the lines leaking???

If not...don't replace them....worry about that when they start leaking.

I would replace the hoses to the rad if they feel like they need replacing....Basically they will feel squishy if they are on they're way out.

No - they aren't leaking but I'm trying to avoid a roadside breakdown - this could be a real mess on the road away from home if its that big of a deal to change

I haven't ever replaced any if that makes you feel better.

Yeah...if the lines are crimped on one end, with a Quickcon and flex hose, than you have to replace the whole thing. Its not really a maintenance item, as most of those hoses are there for the life of the vehicle, But if you feel like replacing them....Its your dime.

Most people, when replacing crimped low pressure lines, just cut the crimped part off, and attach a cut to fit hose with a hose clamp...and do the same onto the fittings on the heater core. I couldn't find those lines aftermarket, so you probably need to buy them from the dealer...and they wont be cheap.

As for replacing the AC lines....than you need to bleed the system...install new lines than charge the system again. That gets expensive.

minibike132 · December 10, 2009

I've replaced/repaired plenty of rear a/c lines on those vehicles but never have replaced a heater hose. Come to think of it I have never seen anyone else replace them either and I've worked in some pretty big shops. I wouldn't worry about it.

Nytemare · December 10, 2009

I've replaced/repaired plenty of rear a/c lines on those vehicles but never have replaced a heater hose. Come to think of it I have never seen anyone else replace them either and I've worked in some pretty big shops. I wouldn't worry about it.

Same here man..not the big shop part...but the never replaced heater lines.

I have seen guys come in to our shop with the rear AC lines plugged off because they starter leaking...and those lines are made aftermarket too...they're not expensive either.

patrickadouglas · December 10, 2009

I've replaced/repaired plenty of rear a/c lines on those vehicles but never have replaced a heater hose. Come to think of it I have never seen anyone else replace them either and I've worked in some pretty big shops. I wouldn't worry about it.

Same here man..not the big shop part...but the never replaced heater lines.

I have seen guys come in to our shop with the rear AC lines plugged off because they starter leaking...and those lines are made aftermarket too...they're not expensive either.