Coolant leaking - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Zenki_Kouki.5 · 07-06-2009, 05:52 PM

So i've checked most if not all threads talking about over heating and coolant leaking,but none of them talk about whats wrong with mine

so my rads not cracked and it still has coolant and there's still a leak. When i let my engine cool down and i check the rad it seems full
people said its my head gasket or my water pump
none of my hoses are leaking or have holes so im guessing its either the hg or the water pump
it looks like the leak it coming above the alternator so yeah im not sure.

LMK on ur suggestions or anythinggg

st280 · 07-06-2009, 05:53 PM

Could be heater hoses? I JUST had the same problem. One of the heater hoses under the intake manifold had a littttle crack.

Zenki_Kouki.5 · 07-06-2009, 05:56 PM

Quote:

Originally Posted by st280

Could be heater hoses? I JUST had the same problem. One of the heater hoses under the intake manifold had a littttle crack.

So all you did was replace it and no problems since then?
is it the one rite under the intake manifold? the short one?
how much did you buy yours?

st280 · 07-06-2009, 06:40 PM

there are quite a bit of heater hoses and coolant lines that are directly under the intake mani... and i haven't had any coolant leaks, but i have a boost leak from something else now haha.

and i have a bunch of silicone hoses that i just used to replace all of them since i was already under the mani

Zenki_Kouki.5 · 07-06-2009, 06:47 PM

so do i have to take out the intake mani and throttle body to get to those hoses?

st280 · 07-06-2009, 06:49 PM

what kind of engine do you have? on my redtop sr i needed to with how the intake manifold is... you might be able to if you have a plenum intake manifold?

Zenki_Kouki.5 · 07-06-2009, 06:55 PM

Ohh yeah my bad forgot to mention
its a KA24DE so yeah i do probably need to take off the intake mani rite?

st280 · 07-06-2009, 07:04 PM

yea, see if you can pin point where exactly the leak is coming from...

Zenki_Kouki.5 · 07-06-2009, 07:23 PM

I dont have a camera rite now but i see most of the coolant drops from where the alternator bolts on so it should be above the alternator

onesloka · 07-06-2009, 11:14 PM

it could be your thermostat housing. mine was leaking and it dripped on the alt.

DaPCWiz · 07-07-2009, 07:20 AM

i recently thought I had a coolant leak, tore everything apart, even swapped out the radiator trying to find it. Turned out my thermostat was stuck closed which was causing the coolant to boil over into the overflow and then gush out the overflow.

Swapped out the thermostat, bam, no more issues... Also, I had some generic thermostat before, I swapped it out for oem, temps went down 5-10 degrees!

S-Nation S13 · 07-07-2009, 07:28 AM

check the termo housing cause its right next to alt. your last check would be head gasket cause its more work to get to do all the easy checks first

hoses check hoses after a good drive if any hoses are cracked youll see the leak due to the fact that your coolant system has been perssurized

if it was head gasket would white smoke come out the tail pipe??? are you shooting white somke??

Matej · 07-07-2009, 07:32 AM

Mine does the exact same thing.

I have been ignoring it for about three years now.

Zenki_Kouki.5 · 07-07-2009, 09:20 AM

Quote:

Originally Posted by DaPCWiz

i recently thought I had a coolant leak, tore everything apart, even swapped out the radiator trying to find it. Turned out my thermostat was stuck closed which was causing the coolant to boil over into the overflow and then gush out the overflow.

Swapped out the thermostat, bam, no more issues... Also, I had some generic thermostat before, I swapped it out for oem, temps went down 5-10 degrees!

Ill double check on the thermostat today

Quote:

Originally Posted by S-Nation S13

check the termo housing cause its right next to alt. your last check would be head gasket cause its more work to get to do all the easy checks first

hoses check hoses after a good drive if any hoses are cracked youll see the leak due to the fact that your coolant system has been perssurized

if it was head gasket would white smoke come out the tail pipe??? are you shooting white somke??

Naw its not shooting out white smoke
it doesnt seem like any hoses are cracked or has any holes
so i guess the thermostat

Thanks guys

HarrySB · 07-07-2009, 10:19 AM

buddy, get a cooling system pressure tester.

pressurize your cooling system when the car is COLD.

Look for leaks.

mattack69 · 07-07-2009, 10:24 AM

Feel under the middle of your water pump there will be a breather. If it's leaking from there time to order a new one. Change your thermostat at the same time while you have the system empty of fluid, burp that biach and you should be monies. Sounds like your thermostat is stuck though. Those would be the first things i'd look at.

markapple0507 · 07-07-2009, 10:29 AM

Quote:

Originally Posted by Zenki_Kouki.5

Ill double check on the thermostat today

Naw its not shooting out white smoke
it doesnt seem like any hoses are cracked or has any holes
so i guess the thermostat

Thanks guys

^^^ i have the same problem. started yesterday. this is the second time but the first time was a bypass line for sure. this time i don't see any cracks in the lines so im going to check the thermo then the gasket to the water pump. is it possible the pump went out too?

also on a side note, since coolant has spilled on to the alternator, it going to become sticky (yuck), it going to start to whine, and go out earlier

Zenki_Kouki.5 · 07-07-2009, 12:32 PM

Well my water pump seems to be leaking under it and where the thermostat is.
So does this mean i have to change out both?

Zenki_Kouki.5 · 07-07-2009, 01:08 PM

the coolant drops are ending up on there

Bigsyke · 07-07-2009, 01:35 PM

If its behind the alt bracket its the thermostat housing. Check the lower weep hole on the water pump.

Or, just do what your supposed to and get a pressure tester, pump it to 19lbs and watch where the water squirts out from like a pipe leak.

Zenki_Kouki.5 · 07-07-2009, 02:08 PM

Lol no one i know has dat so yeah

mattack69 · 07-07-2009, 03:05 PM

Does vato-zone not have such an item? I'd change both personally. I don't know the condition of your engine but like I said if you are replacing one do the other and save that time. Sounds like your water pump is doneski's IMO if she is leaking from the bottom. I had a similar situation it was the water pump but I also changed out the thermo just for good measure. Pics would be bueno so we can give you a more accurate guess-timate.

Zenki_Kouki.5 · 07-09-2009, 03:55 AM

Update:
I changed my water pump
and resealed the shit whre the thermostat goes in
It seemed like it was running fine but i ran it about 20 minutes then all i see is coolant leaking again.
Again anyone have suggestions on this.

07-06-2009, 05:52 PM	#1
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	Coolant leaking So i've checked most if not all threads talking about over heating and coolant leaking,but none of them talk about whats wrong with mine so my rads not cracked and it still has coolant and there's still a leak. When i let my engine cool down and i check the rad it seems full people said its my head gasket or my water pump none of my hoses are leaking or have holes so im guessing its either the hg or the water pump it looks like the leak it coming above the alternator so yeah im not sure. LMK on ur suggestions or anythinggg

07-07-2009, 07:20 AM	#11
DaPCWiz Zilvia Addict Join Date: Jul 2004 Location: Northern NJ Age: 41 Posts: 991 Trader Rating: (3) Feedback Score: 3 reviews	i recently thought I had a coolant leak, tore everything apart, even swapped out the radiator trying to find it. Turned out my thermostat was stuck closed which was causing the coolant to boil over into the overflow and then gush out the overflow. Swapped out the thermostat, bam, no more issues... Also, I had some generic thermostat before, I swapped it out for oem, temps went down 5-10 degrees! __________________ http://blog.dapcwiz.com

07-06-2009, 05:53 PM	#2
st280 Zilvia Junkie Join Date: Feb 2008 Location: San Diego, CA Posts: 307 Trader Rating: (12) Feedback Score: 12 reviews	Could be heater hoses? I JUST had the same problem. One of the heater hoses under the intake manifold had a littttle crack.

07-06-2009, 06:40 PM	#4
st280 Zilvia Junkie Join Date: Feb 2008 Location: San Diego, CA Posts: 307 Trader Rating: (12) Feedback Score: 12 reviews	there are quite a bit of heater hoses and coolant lines that are directly under the intake mani... and i haven't had any coolant leaks, but i have a boost leak from something else now haha. and i have a bunch of silicone hoses that i just used to replace all of them since i was already under the mani

07-06-2009, 06:47 PM	#5
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	so do i have to take out the intake mani and throttle body to get to those hoses?

07-06-2009, 06:49 PM	#6
st280 Zilvia Junkie Join Date: Feb 2008 Location: San Diego, CA Posts: 307 Trader Rating: (12) Feedback Score: 12 reviews	what kind of engine do you have? on my redtop sr i needed to with how the intake manifold is... you might be able to if you have a plenum intake manifold?

07-06-2009, 06:55 PM	#7
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	Ohh yeah my bad forgot to mention its a KA24DE so yeah i do probably need to take off the intake mani rite?

07-06-2009, 07:04 PM	#8
st280 Zilvia Junkie Join Date: Feb 2008 Location: San Diego, CA Posts: 307 Trader Rating: (12) Feedback Score: 12 reviews	yea, see if you can pin point where exactly the leak is coming from...

07-06-2009, 07:23 PM	#9
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	I dont have a camera rite now but i see most of the coolant drops from where the alternator bolts on so it should be above the alternator

07-06-2009, 11:14 PM	#10
onesloka Leaky Injector Join Date: Dec 2007 Location: az Age: 37 Posts: 51 Trader Rating: (1) Feedback Score: 1 reviews	it could be your thermostat housing. mine was leaking and it dripped on the alt.

07-07-2009, 07:28 AM	#12
S-Nation S13 Post Whore! Join Date: Jan 2008 Location: LAND of the LOST Posts: 4,083 Trader Rating: (92) Feedback Score: 92 reviews	check the termo housing cause its right next to alt. your last check would be head gasket cause its more work to get to do all the easy checks first hoses check hoses after a good drive if any hoses are cracked youll see the leak due to the fact that your coolant system has been perssurized if it was head gasket would white smoke come out the tail pipe??? are you shooting white somke??

07-07-2009, 07:32 AM	#13
Matej Post Whore! Join Date: Feb 2007 Location: N/A Posts: 9,423 Trader Rating: (39) Feedback Score: 39 reviews	Mine does the exact same thing. I have been ignoring it for about three years now.

07-07-2009, 10:19 AM	#15
HarrySB Join Date: Dec 2008 Location: Santa Barbara Age: 38 Posts: 3 Trader Rating: (0) Feedback Score: 0 reviews	buddy, get a cooling system pressure tester. pressurize your cooling system when the car is COLD. Look for leaks.

07-07-2009, 10:24 AM	#16
mattack69 Zilvia Junkie Join Date: Jan 2007 Location: Germany biashses Age: 44 Posts: 412 Trader Rating: (3) Feedback Score: 3 reviews	Feel under the middle of your water pump there will be a breather. If it's leaking from there time to order a new one. Change your thermostat at the same time while you have the system empty of fluid, burp that biach and you should be monies. Sounds like your thermostat is stuck though. Those would be the first things i'd look at.

07-07-2009, 12:32 PM	#18
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	Well my water pump seems to be leaking under it and where the thermostat is. So does this mean i have to change out both?

07-07-2009, 01:08 PM	#19
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	the coolant drops are ending up on there

07-07-2009, 01:35 PM	#20
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 40 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	If its behind the alt bracket its the thermostat housing. Check the lower weep hole on the water pump. Or, just do what your supposed to and get a pressure tester, pump it to 19lbs and watch where the water squirts out from like a pipe leak.

07-07-2009, 02:08 PM	#21
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	Lol no one i know has dat so yeah

07-07-2009, 03:05 PM	#22
mattack69 Zilvia Junkie Join Date: Jan 2007 Location: Germany biashses Age: 44 Posts: 412 Trader Rating: (3) Feedback Score: 3 reviews	Does vato-zone not have such an item? I'd change both personally. I don't know the condition of your engine but like I said if you are replacing one do the other and save that time. Sounds like your water pump is doneski's IMO if she is leaking from the bottom. I had a similar situation it was the water pump but I also changed out the thermo just for good measure. Pics would be bueno so we can give you a more accurate guess-timate.

07-09-2009, 03:55 AM	#23
Zenki_Kouki.5 Zilvia Member Join Date: Mar 2009 Location: 671 Age: 36 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	Update: I changed my water pump and resealed the shit whre the thermostat goes in It seemed like it was running fine but i ran it about 20 minutes then all i see is coolant leaking again. Again anyone have suggestions on this.