Coolant Leak - Help Needed
05-23-2015, 08:56 PM
#1
Senior Member
Thread Starter
Coolant Leak - Help Needed
I finished up replacing my ABC high pressure lines today and after I put it all back together there is an engine coolant leak on the top back of the motor. It is above the bell housing and below the intercooler lines. I need help finding a picture with the coolant hose routing on the back of the engine. I know there are some posted here but my searches have not been successful.
It is definitely engine coolant and not the intercooler circuit. It started leaking as soon as I filled the radiator back up. I have looked for about an hour with a flashlight and inspection mirrors but I can't find the source. It is steadily streaming down the back of the motor on the left drivers side.
I figured I must have damaged something when the motor was jacked up to get clearance to remove the ABC lines from between the oil pan and cross member.
Your help is sure appreciated!
It is definitely engine coolant and not the intercooler circuit. It started leaking as soon as I filled the radiator back up. I have looked for about an hour with a flashlight and inspection mirrors but I can't find the source. It is steadily streaming down the back of the motor on the left drivers side.
I figured I must have damaged something when the motor was jacked up to get clearance to remove the ABC lines from between the oil pan and cross member.
Your help is sure appreciated!
05-24-2015, 12:58 PM
#2
just guessing, but could be the transmission coolant line.
05-24-2015, 10:39 PM
#4
Senior Member
Thread Starter
Does the tranny get coolant sent back to the tranny or does it send tranny fluid forward to the radiator to cool off? Not sure I have ever seen a tranny that actually had water flowing through it as a coolant.
05-25-2015, 11:36 AM
#5
i believe you are correct. the tranny sends tranny fluid forward to the radiator. i guess you better look elsewhere. sorry!
05-27-2015, 10:34 AM
#6
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2003 W211 E55, 2003 W220 S600
coolant line to the turbo?
maybe pictures from this post will help
http://www.boostaddict.com/showthrea...000-horsepower
maybe pictures from this post will help
http://www.boostaddict.com/showthrea...000-horsepower
Last edited by shardul; 05-27-2015 at 10:38 AM.
05-29-2015, 11:46 PM
#7
Senior Member
Thread Starter
After days of searching I finally found where it was leaking. The front thermostat housing was leaking on the bottom of the unit where it seals to the block. The water dripped out and ran down the valley of the motor and came out the back under the intake and ran down the bell housing. My only thought is something got tweaked when I had the engine hoist hooked to the loop by the oil filter.
The leak had me really scratching my head. I looked and every hose and it looked OK. It is so hard to see back there, it was a real challenge.
The leak had me really scratching my head. I looked and every hose and it looked OK. It is so hard to see back there, it was a real challenge.
