01 Overheating. both hoses Hot n Hard
05-21-2013, 12:21 AM
#1
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01 Overheating. both hoses Hot n Hard
Flushed system twice keeps on actin up this 5th gen has been notthin but problems since day 1 btw definitely not built like a 4th Gen! Junk!!!
anyways 5months ago she got brand new radiator from rockauto new Radiator Fan assembly Ebay OEM. Thermostat n upper lower hoses from autozone thought my overheating issues were delt with well here they come back past week. i keep mysteriously loosing coolant but no leaks. no water in oil. its always low!!!!!
well usually overheats idling heater won't even work till i rev above 1200rpm then heater gets hot. well last night on freeway it kept overheating left n right radiator Full hoses ROCK Hard and hot upper n lower both fans on full blast.
where's my issues?? I'm lost n ready to sell this junk.
anyways 5months ago she got brand new radiator from rockauto new Radiator Fan assembly Ebay OEM. Thermostat n upper lower hoses from autozone thought my overheating issues were delt with well here they come back past week. i keep mysteriously loosing coolant but no leaks. no water in oil. its always low!!!!!
well usually overheats idling heater won't even work till i rev above 1200rpm then heater gets hot. well last night on freeway it kept overheating left n right radiator Full hoses ROCK Hard and hot upper n lower both fans on full blast.
where's my issues?? I'm lost n ready to sell this junk.
05-21-2013, 06:17 AM
#3
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If your losing coolant and no signs of a visible leak but the heater hoses are rock hard then i'm will to bet your have a blown head gasket and coolant is leaking into the cylinder.
Also depending on where the head gasket is cracked you'll never see coolant in the oil and also depending on how much is leaking you might not ever see any smoke coming out of the exhaust.
It's really easy to check if you have a blown head gasket though.
You can use a radiator coolant tester that you can buy or rent from autozone and it test for hydrocarbons in the coolant (exhaust gases) and is a sure fire way to test. or a simple method is to start the car with the radiator cap off and see if your getting a constant stream of bubbles coming to the top.
If your losing coolant and its not leaking then thats really the only place it can go and would also explain all your symptoms.
Also depending on where the head gasket is cracked you'll never see coolant in the oil and also depending on how much is leaking you might not ever see any smoke coming out of the exhaust.
It's really easy to check if you have a blown head gasket though.
You can use a radiator coolant tester that you can buy or rent from autozone and it test for hydrocarbons in the coolant (exhaust gases) and is a sure fire way to test. or a simple method is to start the car with the radiator cap off and see if your getting a constant stream of bubbles coming to the top.
If your losing coolant and its not leaking then thats really the only place it can go and would also explain all your symptoms.
Last edited by a33nismo; 05-21-2013 at 06:20 AM.
on what DW said
05-21-2013, 11:32 AM
#7
Autozone thermostat? No No
No Heat at idle? Heat at high RPMs? You have air in the system...
Hose hot and hard? Air in the sustem.
You do know that the car has two thermostats correct? Which one did you replace?
No Heat at idle? Heat at high RPMs? You have air in the system...
Hose hot and hard? Air in the sustem.
You do know that the car has two thermostats correct? Which one did you replace?
05-21-2013, 11:40 AM
#8
05-21-2013, 12:51 PM
#14
I was given the impression....somewhere here on the org that the heater core is always on.....so there wouldn't be any water control valve. Instead there's a flap in the dash to control whether the heat comes into the cabin or not.
05-21-2013, 12:52 PM
#15
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The aftermarket thermostat could be an issue but there's still the big problem of him losing coolant all the time with no external leak.
It does sounds like he has air in the system but that probably from the exhaust gases in the coolant.
Hopefully will know more when the OP chimes back in with some more info.
It does sounds like he has air in the system but that probably from the exhaust gases in the coolant.
Hopefully will know more when the OP chimes back in with some more info.
Last edited by a33nismo; 05-21-2013 at 12:55 PM.
just search some of OPs other threads 
05-21-2013, 01:32 PM
#20
but the key here is that you mentioned the heat comes on when you rev the engine... you have an air pocket in there... bleed the system the correct way
Last edited by L_U_D_I_AMaxima; 05-21-2013 at 01:36 PM.
05-21-2013, 01:35 PM
#21
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Hoses are new just hard as in full of pressure! today i drove her 18miles overheating cause i don't beleave its Hot. bottom hose is cool upper hose is hot n normal radiator full not loosing any.
ac gets warm compressor kicks off when overheats but never actually over heats? i got tires of junk car jus kept driving it on fwy while overheating. i turn heater on full n temp goes down fastly to normal. makes no since.
Its never goes to H it goes to 2nd line right undet it n stays like its still normal but still too hot.
ac gets warm compressor kicks off when overheats but never actually over heats? i got tires of junk car jus kept driving it on fwy while overheating. i turn heater on full n temp goes down fastly to normal. makes no since.
Its never goes to H it goes to 2nd line right undet it n stays like its still normal but still too hot.
Last edited by NmexMAX; 05-22-2013 at 01:08 PM.
05-21-2013, 04:42 PM
#23
I know whats wrong now bro.!!!!!!
Heres your final fix!
1. Sell your car because your maintance skills and listening skills are laking
2. Buy tricycle
3. Watch new owner bleed air out of system for 30-45 minutes with rad cap off and heater in full and enjoy his new ride as he rides past you.
Heres your final fix!
1. Sell your car because your maintance skills and listening skills are laking
2. Buy tricycle
3. Watch new owner bleed air out of system for 30-45 minutes with rad cap off and heater in full and enjoy his new ride as he rides past you.
05-21-2013, 04:48 PM
#24
There is no water valve on the heater core. Nissan eliminated it when they introduced the 4th gen. Cabin temperature is accomplished by how much air flows or doesn't flow throught the heater core. This is accomplished by the air mix door.
The 2000 and 2001 have an experiment on them called the water control valve. Don't know what it is supposed to accomplish but Nissan stopped wasting their money on it after 2 years.
I'm concerned by the fact that you don't get any heat unless you rev the engine to 1200 rpm. That sure sounds like air in the system as L U D I AMaxima said. Mysterious loss of coolant could be a head gasket. Get a pressure check done.
The 2000 and 2001 have an experiment on them called the water control valve. Don't know what it is supposed to accomplish but Nissan stopped wasting their money on it after 2 years.
I'm concerned by the fact that you don't get any heat unless you rev the engine to 1200 rpm. That sure sounds like air in the system as L U D I AMaxima said. Mysterious loss of coolant could be a head gasket. Get a pressure check done.
05-21-2013, 06:43 PM
#26
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That's where it went them few times because it was completely full and burnt hole in top or corodded overflow! The heater works at idle! only somtimes when looses coolant it don't i guess!
I bled it for 20mins earlier no more bubles came out took for ever.
Last edited by NmexMAX; 05-22-2013 at 01:08 PM.
05-21-2013, 07:06 PM
#27
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Guess what buddy ITS YOUR AFTERMARKET THERMOSTAT!! happened to me. Read up on aftermarket thermostats someone put me on to this and they were right. The dead give away you said was your bottom hose is cool and ur top hose is hot. I bet u paid alot for that thermostat from autozone, for some reason autozone sells the thermostat for $65 and i got mine from the dealer for $17. as soon as the fans kicked on the temp would rise and My fans were on full blast all the time and temp never went down enough. Read up on those topics.
05-22-2013, 12:11 PM
#28
Guess what buddy ITS YOUR AFTERMARKET THERMOSTAT!! happened to me. Read up on aftermarket thermostats someone put me on to this and they were right. The dead give away you said was your bottom hose is cool and ur top hose is hot. I bet u paid alot for that thermostat from autozone, for some reason autozone sells the thermostat for $65 and i got mine from the dealer for $17. as soon as the fans kicked on the temp would rise and My fans were on full blast all the time and temp never went down enough. Read up on those topics.
Last edited by NmexMAX; 05-22-2013 at 01:07 PM.
05-22-2013, 11:38 PM
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05-23-2013, 07:57 AM
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05-24-2013, 11:58 PM
#36
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Ok. Swapped Thermostats bled for 25mins first 5mins was weird filled up while idleing and was makin funny birp noise and upper hose was pulsating and throbing guess cause so much air but took for ever to fill was thinking exhaust gasses was gettin in cooling system!...
Finnally filled n small bubbles came out for 15 mins after finally cleared put cap on it let it build presure entire time idleing bout 30mins i had heater on full!! never felt heat in car till i revved the engine up!!! wtf???
and still overheating! I'm confused.
Finnally filled n small bubbles came out for 15 mins after finally cleared put cap on it let it build presure entire time idleing bout 30mins i had heater on full!! never felt heat in car till i revved the engine up!!! wtf???
and still overheating! I'm confused.
05-25-2013, 02:41 PM
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Yea ill ramp front up in bleed again.
question is thought prestone was good but after reading i need oem or Honda blue or toyota red! Which do u guys perfer! and ect may be bad cause i don't think it really is overheating. but is running hotter then it should! Never smokes or overboils when it says its runnin hot!
question is thought prestone was good but after reading i need oem or Honda blue or toyota red! Which do u guys perfer! and ect may be bad cause i don't think it really is overheating. but is running hotter then it should! Never smokes or overboils when it says its runnin hot!