Is my car overheating?
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"You leave me in the trenches taking Grenades, John"
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Is my car overheating?
About a week ago my matinence required light started flashing when I turned on my car (I know this means nothing), however once my car finally got to its running temperature I noticed that its getting a little higher each day. As of a few days ago this is what it was at: 
today it is exactly on the half way mark (maybe just a hair more). Idk whats up with my car? I havent been running it hard at all lately, I've actually been taking it easy. I dont think its my oil because I changed it no more than 1k miles ago, so Im stumped. Any ideas guys?
today it is exactly on the half way mark (maybe just a hair more). Idk whats up with my car? I havent been running it hard at all lately, I've actually been taking it easy. I dont think its my oil because I changed it no more than 1k miles ago, so Im stumped. Any ideas guys?
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From: Lost Angels
Rep Power: 301 Don't fill the overflow bottle. Fill the radiator and bleed the air out. The overflow bottle should not ever be "full" No more than half.
That pic is my normal temp. But half is save. If it goes to 3/4, you have a problem. If it goes higher, DO NOT DRIVE. You'll warp the head.
That pic is my normal temp. But half is save. If it goes to 3/4, you have a problem. If it goes higher, DO NOT DRIVE. You'll warp the head.
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"You leave me in the trenches taking Grenades, John"
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Originally Posted by tinman
Don't fill the overflow bottle. Fill the radiator and bleed the air out. The overflow bottle should not ever be "full" No more than half.
That pic is my normal temp. But half is save. If it goes to 3/4, you have a problem. If it goes higher, DO NOT DRIVE. You'll warp the head.
That pic is my normal temp. But half is save. If it goes to 3/4, you have a problem. If it goes higher, DO NOT DRIVE. You'll warp the head.
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From: Lost Angels
Rep Power: 301 [QUOTE=teg91ls] Air bubbles in the system, a common Honda problem. Porsche is even worse...
Older Hondas have a small bleeder bolt right on top of the engine next to the thermostat housing. It had a little hole in it, so you turn on the engine with the heater on high and open the bleeder until only coolant flows out. Keep adding new coolant to keep the radiator full. The D17 does not have this bleeder, the air has to work itself out through the radiator. Basically the same drill. Heater on high, open the radiator (engine cold) and top off. Start the engine and let it run until it gets warm, and/or no more bubbles come out of the radiator. Make sure it's full to the top before putting the cap back on. Also check the cap. A little crack in the rubber will make the car loose coolant slowly and get air into the system.
I should mention that IF you have air in the system, it came from somewhere. A healthy cooling system is vaccum tight. It has to be vaccum tight so that as it cools, the overflow coolant is sucked back into the radiator. So you need to look for even the smallest leak and fix it. Common leaks are the radiator cap, the heater valve, a hose, (usually a TINY bypass hose on the intake manifold) the throttle body heater, and finally a headgasket leak. All in that order.
If you bleed the system and the problem comes back.... you have a leak.
Originally Posted by tinman
Don't fill the overflow bottle. Fill the radiator and bleed the air out. QUOTE]
How do you bleed the air out?
How do you bleed the air out?
Older Hondas have a small bleeder bolt right on top of the engine next to the thermostat housing. It had a little hole in it, so you turn on the engine with the heater on high and open the bleeder until only coolant flows out. Keep adding new coolant to keep the radiator full. The D17 does not have this bleeder, the air has to work itself out through the radiator. Basically the same drill. Heater on high, open the radiator (engine cold) and top off. Start the engine and let it run until it gets warm, and/or no more bubbles come out of the radiator. Make sure it's full to the top before putting the cap back on. Also check the cap. A little crack in the rubber will make the car loose coolant slowly and get air into the system.
I should mention that IF you have air in the system, it came from somewhere. A healthy cooling system is vaccum tight. It has to be vaccum tight so that as it cools, the overflow coolant is sucked back into the radiator. So you need to look for even the smallest leak and fix it. Common leaks are the radiator cap, the heater valve, a hose, (usually a TINY bypass hose on the intake manifold) the throttle body heater, and finally a headgasket leak. All in that order.
If you bleed the system and the problem comes back.... you have a leak.
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