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Why is there no indication to warn of no coolant
Hi,
I have a 2001 civic. The water pump leaked and all the coolant came out. After driving it for a while the engine melted, surprise. the thing is, there was no indication on the temp gauge of overheating and there was no warning of any kind that the coolant was empty. shouldn't there have been at least a check engine light warning. Why didn't the temp gauge go up? thanks |
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#2
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> wrote in message
oups.com... > Hi, > I have a 2001 civic. The water pump leaked and all the coolant came > out. After driving it for a while the engine melted, surprise. the > thing is, there was no indication on the temp gauge of overheating and > there was no warning of any kind that the coolant was empty. shouldn't > there have been at least a check engine light warning. Why didn't the > temp gauge go up? > thanks Your sensor may have been faulty before the leak. Usually the temp gauge would rise. I would also guess a red light would appear on the dash (not sure what lights are on the civic dash). |
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#5
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"Randolph" > wrote
> wrote: > > I have a 2001 civic. The water pump leaked and all the coolant came > > out. ... Why didn't the temp gauge go up? > Most cars do not have coolant *level* sensors, so no warning about > coolant missing. Furthermore, the coolant *temperature* sensor measures > just that, coolant temperature. When it is not immersed in coolant it > will not necessarily track engine temperature. To prove this I'd boiled a sensors and compared to a sensor under a propane torch. The torched sensor did not register change in resistance. Instead, it melted. But since the coolant sensor is place half up it should register an overheating when the coolant is half full. It appears the coolant escape quickly. Putting this into mind, whenever you loose an ounce of horsepower, you are overheating. Train your mind for these subtle differences. |
#6
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> wrote > Hi, > I have a 2001 civic. The water pump leaked and all the coolant came > out. After driving it for a while the engine melted, surprise. the > thing is, there was no indication on the temp gauge of overheating and > there was no warning of any kind that the coolant was empty. shouldn't > there have been at least a check engine light warning. Why didn't the > temp gauge go up? > thanks One of my former Civics lost its coolant and the temperature gauge shot up all the way - that's how I knew. The fact your gauge may have been faulty and didn't alert you to trouble (where you would, of course, shut off the engine and have the car towed to a service center) might give you some recourse for your melted engine. |
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