Small coolant leak front left - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

W4rMach1ne · 09-24-2016, 12:45 AM

I already had my thermostat replaced about 10k ago at 54k under warranty. I have noticed ten plus drops of coolant on my garage floor lately. It wasn't oil I checked it and you could smell it was radiator coolant. I checked the radiator it had plenty of fluids, and I checked my radiator hoses from the hood. All the hoses seem fine. I noticed my overflow reservoir needs to be refilled every month. The car is not overheating. Do I need to jack the car and check the hoses underneath? My car is at 66k now.

ron123 · 09-26-2016, 12:05 PM

Maybe the drain valve was not closed completely on radiator after they did the repair - that is on the left driver's side.
Viewing from underside is a lot easier safer if you have some solid ramps.

Ron

pontiac_4_ever · 10-28-2016, 10:34 PM

Check the coolant sending unit on the front left side of the engine block. I had mine replaced under warranty this week due to it leaking. There is a TSB that covers the problem on our cars.

Good Luck!

Rock-It Man · 10-30-2016, 08:03 PM

There's a coolant line from the engine block to the oil cooler. The engine block fitting is a known leak source. Get under the car and take a look. It's on the left side of he block, to the rear.

W4rMach1ne · 11-14-2016, 05:22 PM

Here are some pictures

W4rMach1ne · 11-15-2016, 09:35 PM

I cannot seem to pinpoint the source. It is running down the part of transmission and by the oil pan. I am taking off the intake manifold this weekend, and checking gaskets. I also am going to look at thermostat housing. It seems to be a slow leak coming from where on rear back on engine and running down the transmission.

09-24-2016, 12:45 AM	#1
W4rMach1ne Drives: 2011 Camaro LT1 Join Date: Apr 2015 Location: Florida, United States Posts: 336 View My Garage	Small coolant leak front left I already had my thermostat replaced about 10k ago at 54k under warranty. I have noticed ten plus drops of coolant on my garage floor lately. It wasn't oil I checked it and you could smell it was radiator coolant. I checked the radiator it had plenty of fluids, and I checked my radiator hoses from the hood. All the hoses seem fine. I noticed my overflow reservoir needs to be refilled every month. The car is not overheating. Do I need to jack the car and check the hoses underneath? My car is at 66k now.

09-26-2016, 12:05 PM	#2
ron123 Drives: 2014 2SS/RS Join Date: Dec 2014 Location: Raleigh, NC Posts: 1,053	Maybe the drain valve was not closed completely on radiator after they did the repair - that is on the left driver's side. Viewing from underside is a lot easier safer if you have some solid ramps. Ron __________________ 2014 2SS/RS, Z28 CAI and High Wing Spoiler, ZL1 5.1:1 Ratio Short-Throw Shifter, ZL1 Pedals, ZL1 splash guards, NPP Dual-mode quad tip exhaust, Z28 strut tower brace, Camaro LED Cup-holders with footwell Lighting option, Leather visors, and Leather E-brake boot. Chevy dealer sponsored 67 retro SS nose stripe package.

11-14-2016, 05:22 PM	#5
W4rMach1ne Drives: 2011 Camaro LT1 Join Date: Apr 2015 Location: Florida, United States Posts: 336 View My Garage	Here are some pictures Attached Images

10-28-2016, 10:34 PM	#3
pontiac_4_ever GM F-Body Enthusaist Drives: 2013 ZL1 # 3542 - Blue Ray Metallic Join Date: Nov 2013 Location: Central Iowa Posts: 21 View My Garage	Check the coolant sending unit on the front left side of the engine block. I had mine replaced under warranty this week due to it leaking. There is a TSB that covers the problem on our cars. Good Luck!

10-30-2016, 08:03 PM	#4
Rock-It Man 376 cubic inches of fun Drives: 2023 Camaro ZL1 A10 Join Date: Jul 2010 Location: MA Posts: 4,033 View My Garage	There's a coolant line from the engine block to the oil cooler. The engine block fitting is a known leak source. Get under the car and take a look. It's on the left side of he block, to the rear.

11-15-2016, 09:35 PM	#6
W4rMach1ne Drives: 2011 Camaro LT1 Join Date: Apr 2015 Location: Florida, United States Posts: 336 View My Garage	I cannot seem to pinpoint the source. It is running down the part of transmission and by the oil pan. I am taking off the intake manifold this weekend, and checking gaskets. I also am going to look at thermostat housing. It seems to be a slow leak coming from where on rear back on engine and running down the transmission.