Overheating, coolant spray
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 48
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Overheating, coolant spray
I drove my car (2002 Z06) the other day and noticed my coolant temps were getting higher than normal. Instead of staying around 200/220 they stayed around 240. It would stay there, idle or driving, and then would suddenly fall down to normal.
I figured my thermostat was sticking or going out so I bought a new one to swap in. When I opened the hood (engine hot), there was coolant spraying from a hose connector that leads into the reservoir.
It looks like there was so much pressure in the line that the coolant had to find a way out.
Is this common for a bad/stuck thermostat to cause excessive pressure buildup, or maybe a line is clogged?
I figured my thermostat was sticking or going out so I bought a new one to swap in. When I opened the hood (engine hot), there was coolant spraying from a hose connector that leads into the reservoir.
It looks like there was so much pressure in the line that the coolant had to find a way out.
Is this common for a bad/stuck thermostat to cause excessive pressure buildup, or maybe a line is clogged?
Tech Contributor
Joined: Jan 2007
Posts: 19,398
Likes: 1,139
From: Dyer, IN
I drove my car (2002 Z06) the other day and noticed my coolant temps were getting higher than normal. Instead of staying around 200/220 they stayed around 240. It would stay there, idle or driving, and then would suddenly fall down to normal.
I figured my thermostat was sticking or going out so I bought a new one to swap in. When I opened the hood (engine hot), there was coolant spraying from a hose connector that leads into the reservoir.
It looks like there was so much pressure in the line that the coolant had to find a way out.
Is this common for a bad/stuck thermostat to cause excessive pressure buildup, or maybe a line is clogged?
I figured my thermostat was sticking or going out so I bought a new one to swap in. When I opened the hood (engine hot), there was coolant spraying from a hose connector that leads into the reservoir.
It looks like there was so much pressure in the line that the coolant had to find a way out.
Is this common for a bad/stuck thermostat to cause excessive pressure buildup, or maybe a line is clogged?
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 48
Likes: 0
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 48
Likes: 0
Do any of you have the part number for the reservoir? I just checked the hose where the leak is coming from and sure enough the nipple is broken off.
I can get one from the dealer across the street when they open tomorrow morning.....
I can get one from the dealer across the street when they open tomorrow morning.....
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 48
Likes: 0
Thanks for the help guys. 
Got the new tank swapped in and everything is swell now. Had to add a gallon of coolant because of the mess I made but everything is operational again 
Does anyone have a use for the core?
Got the new tank swapped in and everything is swell now. Had to add a gallon of coolant because of the mess I made but everything is operational again Does anyone have a use for the core?
