Help with my daily
09-21-2015, 11:47 AM
#1
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Help with my daily
I thought of posting this on the civic forum but S2K community is usually more helpful so I decided to ask you guys first.
Three weeks ago, I noticed my 2001 civic was over heating. I examined the car and noticed a crack on the radiator near the radiator cap. I replaced the radiator, bled the coolant and everything seemed normal until last Friday.
I was driving and my civic started to over heat again so I turned on the heater while looking for a place to safely park my car. Only cold air blew out from the vent. I parked and waited to see if the temperature will go back to normal but the temperature gauge stayed at 3/4 (normally at 1/2 mark). I turned off the car and waited. I opened the hood and noticed an overflow from the reservoir. Radiator was dry and radiator cap was also dry. I opened the reservoir and it was full. I waited to see if the radiator will suck back the coolant in the reservoir but it didn't.
I managed to get home and opened the radiator and the reservoir next morning. Radiator was empty and reservoir was full.
I took out the thermostat and tested. Thermostat works properly. I put a new gasket and put everything back, filled up the radiator and bled it. I bought a new radiator cap and installed it.
I drove for about 100 miles and temperature was normal. Later at night, I opened the radiator cap and coolant rushed out. Looks like it was pressurized.
From the my observations, I hope it is just a faulty radiator cap that didn't allow the coolant in the reservoir to return back to the radiator.
My other guess would be a blown head gasket.
I am researching and learning how the cooling system works and those two, radiator cap and blown head gasket, are my best guesses.
Can anyone chime in and help me to resolve the over heating issue?
Thank you.
Three weeks ago, I noticed my 2001 civic was over heating. I examined the car and noticed a crack on the radiator near the radiator cap. I replaced the radiator, bled the coolant and everything seemed normal until last Friday.
I was driving and my civic started to over heat again so I turned on the heater while looking for a place to safely park my car. Only cold air blew out from the vent. I parked and waited to see if the temperature will go back to normal but the temperature gauge stayed at 3/4 (normally at 1/2 mark). I turned off the car and waited. I opened the hood and noticed an overflow from the reservoir. Radiator was dry and radiator cap was also dry. I opened the reservoir and it was full. I waited to see if the radiator will suck back the coolant in the reservoir but it didn't.
I managed to get home and opened the radiator and the reservoir next morning. Radiator was empty and reservoir was full.
I took out the thermostat and tested. Thermostat works properly. I put a new gasket and put everything back, filled up the radiator and bled it. I bought a new radiator cap and installed it.
I drove for about 100 miles and temperature was normal. Later at night, I opened the radiator cap and coolant rushed out. Looks like it was pressurized.
From the my observations, I hope it is just a faulty radiator cap that didn't allow the coolant in the reservoir to return back to the radiator.
My other guess would be a blown head gasket.
I am researching and learning how the cooling system works and those two, radiator cap and blown head gasket, are my best guesses.
Can anyone chime in and help me to resolve the over heating issue?
Thank you.
09-21-2015, 01:35 PM
#2
I thought of posting this on the civic forum but S2K community is usually more helpful so I decided to ask you guys first.
Three weeks ago, I noticed my 2001 civic was over heating. I examined the car and noticed a crack on the radiator near the radiator cap. I replaced the radiator, bled the coolant and everything seemed normal until last Friday.
I was driving and my civic started to over heat again so I turned on the heater while looking for a place to safely park my car. Only cold air blew out from the vent. I parked and waited to see if the temperature will go back to normal but the temperature gauge stayed at 3/4 (normally at 1/2 mark). I turned off the car and waited. I opened the hood and noticed an overflow from the reservoir. Radiator was dry and radiator cap was also dry. I opened the reservoir and it was full. I waited to see if the radiator will suck back the coolant in the reservoir but it didn't.
I managed to get home and opened the radiator and the reservoir next morning. Radiator was empty and reservoir was full.
I took out the thermostat and tested. Thermostat works properly. I put a new gasket and put everything back, filled up the radiator and bled it. I bought a new radiator cap and installed it.
I drove for about 100 miles and temperature was normal. Later at night, I opened the radiator cap and coolant rushed out. Looks like it was pressurized.
From the my observations, I hope it is just a faulty radiator cap that didn't allow the coolant in the reservoir to return back to the radiator.
My other guess would be a blown head gasket.
I am researching and learning how the cooling system works and those two, radiator cap and blown head gasket, are my best guesses.
Can anyone chime in and help me to resolve the over heating issue?
Thank you.
Three weeks ago, I noticed my 2001 civic was over heating. I examined the car and noticed a crack on the radiator near the radiator cap. I replaced the radiator, bled the coolant and everything seemed normal until last Friday.
I was driving and my civic started to over heat again so I turned on the heater while looking for a place to safely park my car. Only cold air blew out from the vent. I parked and waited to see if the temperature will go back to normal but the temperature gauge stayed at 3/4 (normally at 1/2 mark). I turned off the car and waited. I opened the hood and noticed an overflow from the reservoir. Radiator was dry and radiator cap was also dry. I opened the reservoir and it was full. I waited to see if the radiator will suck back the coolant in the reservoir but it didn't.
I managed to get home and opened the radiator and the reservoir next morning. Radiator was empty and reservoir was full.
I took out the thermostat and tested. Thermostat works properly. I put a new gasket and put everything back, filled up the radiator and bled it. I bought a new radiator cap and installed it.
I drove for about 100 miles and temperature was normal. Later at night, I opened the radiator cap and coolant rushed out. Looks like it was pressurized.
From the my observations, I hope it is just a faulty radiator cap that didn't allow the coolant in the reservoir to return back to the radiator.
My other guess would be a blown head gasket.
I am researching and learning how the cooling system works and those two, radiator cap and blown head gasket, are my best guesses.
Can anyone chime in and help me to resolve the over heating issue?
Thank you.
09-21-2015, 02:03 PM
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Thanks for letting me know of the ghost overheating issue with the 7th gen civic.
I never had this issue until couple weeks ago when my original radiator cracked and had to be replaced.
By the way, I bled the system by doing the following; I lifted the front and had the engine running until the fan came on 5 times with the heater on.
Maybe the car is just getting too old after almost 15 years and 230k miles.
Next thing I can do is to check the coolant and oil and see if they are contaminated.
I never had this issue until couple weeks ago when my original radiator cracked and had to be replaced.
By the way, I bled the system by doing the following; I lifted the front and had the engine running until the fan came on 5 times with the heater on.
Maybe the car is just getting too old after almost 15 years and 230k miles.
Next thing I can do is to check the coolant and oil and see if they are contaminated.
09-21-2015, 06:06 PM
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Have you noticed a rough run upon start up and goes away after it idles for a bit, if you have that may be an indicator of coolant entering the cylinder/s. Doing a block test when the concern is happening may help isolate it, intermittent stuck closed t-stat, when you had the t-stat out did you see any abnormal wear? Air in the system. Water pump faulty. Coolant fans not operating properly, coolant temp sensor may be giving a bad reading and the computer doesn't turn the fans on
09-21-2015, 06:14 PM
#5
Thanks for letting me know of the ghost overheating issue with the 7th gen civic.
I never had this issue until couple weeks ago when my original radiator cracked and had to be replaced.
By the way, I bled the system by doing the following; I lifted the front and had the engine running until the fan came on 5 times with the heater on.
Maybe the car is just getting too old after almost 15 years and 230k miles.
Next thing I can do is to check the coolant and oil and see if they are contaminated.
I never had this issue until couple weeks ago when my original radiator cracked and had to be replaced.
By the way, I bled the system by doing the following; I lifted the front and had the engine running until the fan came on 5 times with the heater on.
Maybe the car is just getting too old after almost 15 years and 230k miles.
Next thing I can do is to check the coolant and oil and see if they are contaminated.
09-21-2015, 06:59 PM
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Have you noticed a rough run upon start up and goes away after it idles for a bit, if you have that may be an indicator of coolant entering the cylinder/s. Doing a block test when the concern is happening may help isolate it, intermittent stuck closed t-stat, when you had the t-stat out did you see any abnormal wear? Air in the system. Water pump faulty. Coolant fans not operating properly, coolant temp sensor may be giving a bad reading and the computer doesn't turn the fans on
Thank you for your reply.
I did noticed that the star ups were a bit rough in the morning. Should I look for white smog during a morning star up which will indicate that I have a blow gasket.
When I did the thermostat test, it looked very normal. When I did the bleeding, the coolant fans were working properly.
09-21-2015, 07:02 PM
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Originally Posted by 08S2000' timestamp='1442873020' post='23753815
Thanks for letting me know of the ghost overheating issue with the 7th gen civic.
I never had this issue until couple weeks ago when my original radiator cracked and had to be replaced.
By the way, I bled the system by doing the following; I lifted the front and had the engine running until the fan came on 5 times with the heater on.
Maybe the car is just getting too old after almost 15 years and 230k miles.
Next thing I can do is to check the coolant and oil and see if they are contaminated.
I never had this issue until couple weeks ago when my original radiator cracked and had to be replaced.
By the way, I bled the system by doing the following; I lifted the front and had the engine running until the fan came on 5 times with the heater on.
Maybe the car is just getting too old after almost 15 years and 230k miles.
Next thing I can do is to check the coolant and oil and see if they are contaminated.
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09-21-2015, 07:27 PM
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Just an update:
I just checked the engine oil and the level is still the same (@ full). Also I opened the radiator cap and coolant rushed out again (pressurized) but no sign of oil. The coolant level is same as yesterday.
I will start the car tomorrow morning and see if I see any white smoke.
I just checked the engine oil and the level is still the same (@ full). Also I opened the radiator cap and coolant rushed out again (pressurized) but no sign of oil. The coolant level is same as yesterday.
I will start the car tomorrow morning and see if I see any white smoke.
09-21-2015, 07:28 PM
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Originally Posted by 08S2000
Thank you for your reply. I did noticed that the star ups were a bit rough in the morning. Should I look for white smog during a morning star up which will indicate that I have a blow gasket. When I did the thermostat test, it looked very normal. When I did the bleeding, the coolant fans were working properly.
09-21-2015, 08:34 PM
#10
Originally Posted by 08S2000
Thank you for your reply. I did noticed that the star ups were a bit rough in the morning. Should I look for white smog during a morning star up which will indicate that I have a blow gasket. When I did the thermostat test, it looked very normal. When I did the bleeding, the coolant fans were working properly.
