engine hoses
Thread Starter
Burning Brakes
Joined: Jun 2007
Posts: 765
Likes: 50
From: West Palm Beach,Florida
engine hoses
Having a slow coolant leak in my 2007. Looked under the hood and saw no obvious leaks but most of the hoses looked like ****. They have never been changed. The problem is that besides the upper and lowered rad hoses there are a million hoses that I do not know the name of. Is there a list that gives the name and /or part number for every coolant hose under hood. THANKS
Le Mans Master
Joined: Dec 2013
Posts: 6,338
Likes: 5,115
From: Charles Town WV
2024 Corvette of the Year Finalist - Modified
2023 C6 of the Year Winner - Modified
2022 C6 of the Year Finalist - Modified
Mishimoto makes a full silicone kit... its on my to do list.
https://www.mishimoto.com/chevrolet-...kit-09-14.html (their years are all off but its the right stuff, just make sure you check ls2 vs ls3 because there may be some differences)
https://www.mishimoto.com/chevrolet-...kit-09-14.html (their years are all off but its the right stuff, just make sure you check ls2 vs ls3 because there may be some differences)
Race Director
Joined: Sep 2009
Posts: 11,353
Likes: 2,445
From: Eastern
I had a slow leak back in the day, and could not find it. I did a 12 hr pressure test on the system and finally found the leak coming from the water pump seal. I guess when the car was hot, it would just drip to a hot surface and evaporate. I could smell the coolant but no sign. Long story, I replace the pump, changed all the hoses to Silicone, and no worries since.
The inside of the pump pulley was caked with coolant residue.
The inside of the pump pulley was caked with coolant residue.
Safety Car
Joined: Dec 2006
Posts: 4,596
Likes: 1,680
From: Pearland / Houston Tx
I had a slow leak back in the day, and could not find it. I did a 12 hr pressure test on the system and finally found the leak coming from the water pump seal. I guess when the car was hot, it would just drip to a hot surface and evaporate. I could smell the coolant but no sign. Long story, I replace the pump, changed all the hoses to Silicone, and no worries since.
The inside of the pump pulley was caked with coolant residue.
The inside of the pump pulley was caked with coolant residue.
Should do that too before you suspect a hose.
Safety Car
Joined: Aug 2017
Posts: 4,941
Likes: 2,353
From: Etobicoke (Toronto) Ontario
Seems like the most common place for the hose assembly to leak is at the somewhat infamous plastic Tee fitting. If so, brass barbed fittings are commonly available from your local hardware store.
Drifting
Joined: Apr 2021
Posts: 1,936
Likes: 1,127
From: Peoria, AZ
2023 C6 of the Year Finalist - Modified
When you change them, obviously change them all. When I installed the A & A S/C, I decided while I had everything apart to install a new water pump, and power steering pump, and all new hoses. Good peace of mind and easy to do with everything out of the way.
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Drifting
Joined: Apr 2005
Posts: 1,918
Likes: 451
From: Central NJ
I replaced mine and it wasn't even leaking cause I read they could be a problem and it's a cheap fix
