Replacing radiator coolant overflow tank question. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Jordanvraptor · 08-09-2018, 04:49 PM

2011 Camaro 2LT RS. How hard is it to replace the radiator coolant overflow tank. Mine has a leak somewhere. Tried to top it off and it ran out onto the pavement. I thought I would ask all of you for tips on what and where to look for possible causes. Is it an easy fix or should I take it to the dealer? Took the radiator cap off and its filled to the rim so I pretty sure its just the overflow bottle. Any advice would be appreciated.

Jordan

GhostOutlaw · 08-09-2018, 10:47 PM

OMG! A leak in the overflow was discovered for mine too. My dad said he smelled antifreeze.

Kicker is, the main reservoir was pretty full and I haven't been able to find a leak yet.

Nb1081 · 08-13-2018, 01:20 PM

Probably just gotta take the wheel well out

Jayjellyfish212 · 08-13-2018, 11:22 PM

Removal is done from the wheel well where the 2 bolts holding it in are. Sounds like you guys have way to much coolant in the reservoir. Check when it’s a cold engine after it’s been sitting for a while. There is a small bleeder/breather hole in the unit and most likely that’s where the excess fluid is coming out of after the car is hot and the system is doing what it is supposed to. Check level again when the car gets hot and up to full temperature. If your above full when hot then yours is over filled. Should be low when cold and full when hot.

I have removed my factory unit all together to accommodate a custom billet aluminum one. The system for oem and aftermarket are the same concept.

08-09-2018, 04:49 PM	#1
Jordanvraptor Drives: 2011 Camaro 2LT RS 6A Silver Join Date: Jul 2011 Location: Oregon City, Oregon Posts: 40 View My Garage	Replacing radiator coolant overflow tank question. 2011 Camaro 2LT RS. How hard is it to replace the radiator coolant overflow tank. Mine has a leak somewhere. Tried to top it off and it ran out onto the pavement. I thought I would ask all of you for tips on what and where to look for possible causes. Is it an easy fix or should I take it to the dealer? Took the radiator cap off and its filled to the rim so I pretty sure its just the overflow bottle. Any advice would be appreciated. Jordan

08-13-2018, 01:20 PM	#3
Nb1081 Drives: 10 2ss/rs Join Date: Jul 2018 Location: Shelby ny Posts: 436	Probably just gotta take the wheel well out __________________ [/SIGPIC]10 2ss ls3 sw long tubes,cai intake,phastek scoop,se3" exhaust,elite e2, bw stg2tb, tsp f35, motive 4.10 lpw cover, 15" conversion, 510whp tuned by john donovan

08-13-2018, 11:22 PM	#4
Jayjellyfish212 Drives: 2014 1LE Join Date: Aug 2015 Location: Upstate NY Posts: 2,050 View My Garage	Removal is done from the wheel well where the 2 bolts holding it in are. Sounds like you guys have way to much coolant in the reservoir. Check when it’s a cold engine after it’s been sitting for a while. There is a small bleeder/breather hole in the unit and most likely that’s where the excess fluid is coming out of after the car is hot and the system is doing what it is supposed to. Check level again when the car gets hot and up to full temperature. If your above full when hot then yours is over filled. Should be low when cold and full when hot. I have removed my factory unit all together to accommodate a custom billet aluminum one. The system for oem and aftermarket are the same concept. __________________ Car mods: never enough!

08-09-2018, 10:47 PM	#2
GhostOutlaw Drives: Black 2011 2LT/RS Join Date: Sep 2010 Location: NJ Posts: 282	OMG! A leak in the overflow was discovered for mine too. My dad said he smelled antifreeze. Kicker is, the main reservoir was pretty full and I haven't been able to find a leak yet.