KA overheating, odd problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

1slowS13 · 12-17-2008, 11:26 PM

so its winter time and my temp gauge was always fluctuating, either too cold, or normal operating temp.

so i thought my thermo was stuck open

i buy one from autozone, open it up, and i dont have one. so i put it in, right side in, with the jiggle valve on top.

run my car, overheats, no biggie, i jack the front up and bleed it for a while.

after a while or so, still over heating, so i take the thermostat and put it in a pot and heat it up.. it opens.. i put it back in

still overheating.. lower hose it cold, but the thermostat housing is hot.

i take the hose off, and there was barely any fluid coming out.. i take the radiator cap and it just pours out of the hose.. is that normal?

my car ran fine with the thermostat off, just cold and no heater..

wht240sx · 12-18-2008, 12:12 AM

Is the coolant boiling over to the over flow tank??? actually bubbling??

10-66kruk · 12-18-2008, 12:33 AM

ive been having this same issues and am running a mishimoto aluminum radiator nismo thermo and am "over heating" wish i could figure it out as well.

1slowS13 · 12-18-2008, 01:39 AM

yea it boils and flows into the overflow

im running no thermostat again just to get around

wht240sx · 12-18-2008, 08:43 AM

you might want to check your water pump. take it off and inspect it. Also you may need to pressure test you cooling system and see if you have leaks. Thats where i would start.

bo2o · 12-18-2008, 08:53 AM

what color is your coolent when you take flushed?

***CrimsonRockett*** · 12-18-2008, 09:04 AM

Quote:

Originally Posted by 10-66kruk

ive been having this same issues and am running a mishimoto aluminum radiator nismo thermo and am "over heating" wish i could figure it out as well.

Change out the Mishimoto radiator cap.

My friend's S13 did the exact same thing.

Turned out the cap wasn't holding pressure.

Replaced it with an OEM Nissan one...done.

No more overheating.

1slowS13 · 12-18-2008, 10:32 AM

the color was green, it was pretty clean.. like the p.o. said, he got it flushed.

also, when running no thermo, you can clearly see the water circulating..

mikethebiker · 12-18-2008, 01:07 PM

i would think the problems in your waterpump
inspect

1slowS13 · 12-18-2008, 02:03 PM

so i went ahead and got another thermo from a different auto parts store, and instead of getting 50/50 for $8, i got some distilled water instead.

i put it in, drive it around, doesn't over heat.

im like cool, i pull into the garage and let it cool.

after a hour or so, i top it off and run it without the rad cap and with the bleeder loose.. take it for a drive, overheats again! wtf? im like fuck it, i pop the rad cap out and it was steaming, then i start the car, then a few seconds later it starts spewing water and coolant, so i throw the rad cap back on. drove it home to get some more water, but never overheated after.. i went around town, drove on the highway, and even went through a busy drive-thru and its fine. odd.

10-66kruk · 12-18-2008, 07:56 PM

really? ya there seem to be a lot of steam coming from that area. Hope that's it, wouldn't have thought it would be something simple like that.WIll give it a shot thanks.

Quote:

Originally Posted by CrimsonRockett

Change out the Mishimoto radiator cap.

My friend's S13 did the exact same thing.

Turned out the cap wasn't holding pressure.

Replaced it with an OEM Nissan one...done.

No more overheating.

holemilk00 · 12-18-2008, 08:41 PM

how long are you leaving the bleeder open? Are you SURE you're getting all the air out?

Norty · 12-19-2008, 12:31 AM

ka is notorious for being hard to bleed. When bleeding jack the front up to help make sure that is the highest point and bleed that mother f*er till it the gauge is reading close to hot i used to have trouble with mine all the time. So ur not the only one.

92champgold · 12-19-2008, 12:56 AM

water pump +1

10-66kruk · 12-19-2008, 04:05 PM

Ya i will also have to try this again. How long are you guys keeping the bleeder open with coolant coming out? Also are you pouring coolant in the radiator at same time?

12-17-2008, 11:26 PM	#1
1slowS13 Zilvia Junkie Join Date: Jan 2008 Location: Las Vegas, NV Age: 35 Posts: 466 Trader Rating: (6) Feedback Score: 6 reviews	KA overheating, odd problem so its winter time and my temp gauge was always fluctuating, either too cold, or normal operating temp. so i thought my thermo was stuck open i buy one from autozone, open it up, and i dont have one. so i put it in, right side in, with the jiggle valve on top. run my car, overheats, no biggie, i jack the front up and bleed it for a while. after a while or so, still over heating, so i take the thermostat and put it in a pot and heat it up.. it opens.. i put it back in still overheating.. lower hose it cold, but the thermostat housing is hot. i take the hose off, and there was barely any fluid coming out.. i take the radiator cap and it just pours out of the hose.. is that normal? my car ran fine with the thermostat off, just cold and no heater..

12-18-2008, 08:53 AM	#6
bo2o Zilvia FREAK! Join Date: May 2006 Location: 626 socal! Posts: 1,315 Trader Rating: (7) Feedback Score: 7 reviews	what color is your coolent when you take flushed? __________________ fS! *vlsd ! slim fans ! hid kits ! lug nuts !* http://www.zilvia.net/f/search.php?d...earchuser=bo2o ^^^click^^^

12-18-2008, 12:12 AM	#2
wht240sx Join Date: Oct 2008 Location: grand jct Age: 40 Posts: 40 Trader Rating: (5) Feedback Score: 5 reviews	Is the coolant boiling over to the over flow tank??? actually bubbling??

12-18-2008, 12:33 AM	#3
10-66kruk Leaky Injector Join Date: Oct 2006 Location: Lake Forest, Ca Age: 35 Posts: 148 Trader Rating: (4) Feedback Score: 4 reviews	ive been having this same issues and am running a mishimoto aluminum radiator nismo thermo and am "over heating" wish i could figure it out as well.

12-18-2008, 01:39 AM	#4
1slowS13 Zilvia Junkie Join Date: Jan 2008 Location: Las Vegas, NV Age: 35 Posts: 466 Trader Rating: (6) Feedback Score: 6 reviews	yea it boils and flows into the overflow im running no thermostat again just to get around

12-18-2008, 08:43 AM	#5
wht240sx Join Date: Oct 2008 Location: grand jct Age: 40 Posts: 40 Trader Rating: (5) Feedback Score: 5 reviews	you might want to check your water pump. take it off and inspect it. Also you may need to pressure test you cooling system and see if you have leaks. Thats where i would start.

12-18-2008, 10:32 AM	#8
1slowS13 Zilvia Junkie Join Date: Jan 2008 Location: Las Vegas, NV Age: 35 Posts: 466 Trader Rating: (6) Feedback Score: 6 reviews	the color was green, it was pretty clean.. like the p.o. said, he got it flushed. also, when running no thermo, you can clearly see the water circulating..

12-18-2008, 01:07 PM	#9
mikethebiker Join Date: Oct 2005 Location: Bend, Oregon Posts: 18 Trader Rating: (0) Feedback Score: 0 reviews	i would think the problems in your waterpump inspect

12-18-2008, 02:03 PM	#10
1slowS13 Zilvia Junkie Join Date: Jan 2008 Location: Las Vegas, NV Age: 35 Posts: 466 Trader Rating: (6) Feedback Score: 6 reviews	so i went ahead and got another thermo from a different auto parts store, and instead of getting 50/50 for $8, i got some distilled water instead. i put it in, drive it around, doesn't over heat. im like cool, i pull into the garage and let it cool. after a hour or so, i top it off and run it without the rad cap and with the bleeder loose.. take it for a drive, overheats again! wtf? im like fuck it, i pop the rad cap out and it was steaming, then i start the car, then a few seconds later it starts spewing water and coolant, so i throw the rad cap back on. drove it home to get some more water, but never overheated after.. i went around town, drove on the highway, and even went through a busy drive-thru and its fine. odd.

12-18-2008, 08:41 PM	#12
holemilk00 Nissanaholic! Join Date: Oct 2006 Location: Cape Coral, FL Posts: 2,486 Trader Rating: (33) Feedback Score: 33 reviews	how long are you leaving the bleeder open? Are you SURE you're getting all the air out?

12-19-2008, 12:31 AM	#13
Norty Join Date: Oct 2008 Location: White Ga Age: 39 Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	ka is notorious for being hard to bleed. When bleeding jack the front up to help make sure that is the highest point and bleed that mother f*er till it the gauge is reading close to hot i used to have trouble with mine all the time. So ur not the only one.

12-19-2008, 12:56 AM	#14
92champgold Join Date: Aug 2008 Location: Santee,ca Age: 39 Posts: 11 Trader Rating: (0) Feedback Score: 0 reviews	water pump +1

12-19-2008, 04:05 PM	#15
10-66kruk Leaky Injector Join Date: Oct 2006 Location: Lake Forest, Ca Age: 35 Posts: 148 Trader Rating: (4) Feedback Score: 4 reviews	Ya i will also have to try this again. How long are you guys keeping the bleeder open with coolant coming out? Also are you pouring coolant in the radiator at same time?