07-18-2015, 08:40 PM
|
#1
|
 |
Member
|
|
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
|
|
Member
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
V6- coolant not siphoning back from coolant overflow (not overheating)
Hi guys need some tips here. I am about 11 hours away from home and having some coolant problems.
So, the first stop on my trip i noticed some coolant dripping from the coolant overflow tank. Now the truck is behaving like it should with no overheating. First thing I did was unbolt the tank and dump it back in to the rad . 2 hours later I was able to get some coolant and a new rad cap. Filled the rad to the top and replaced the cap... No difference. Coolant dumping into the overflow tank and not going back to the rad with no overheating.
|
|
 Reply With Quote
|
|
07-18-2015, 10:57 PM
|
#2
|
 |
Member
|
|
Join Date: Mar 2006
Location: Aledo, TX
Posts: 945
|
|
|
Member
Join Date: Mar 2006
Location: Aledo, TX
Posts: 945
|
Quote:
Originally Posted by djtc
Hi guys need some tips here. I am about 11 hours away from home and having some coolant problems.
So, the first stop on my trip i noticed some coolant dripping from the coolant overflow tank. Now the truck is behaving like it should with no overheating. First thing I did was unbolt the tank and dump it back in to the rad . 2 hours later I was able to get some coolant and a new rad cap. Filled the rad to the top and replaced the cap... No difference. Coolant dumping into the overflow tank and not going back to the rad with no overheating.
|
Could be bad thermostat… but since you are not seeing any overheating and since you have a V6… I hate to say it but it could be HG… exhaust gasses creating higher pressure than rad cap can hold and pushing fluid into the expansion tank… sorry for the bad news.... and I do hope that my second suggestion is wrong...
__________________
2013 Silver Trail (with KDSS)-Nitto TG-G2, Bilstein 5100, Custom lift: front 2.1", rear 1.5" (lift info: [URL=https://www.toyota-4runner.org/2938235-post744.html[/URL] thread #744)
1995 SR5 4x4, 1996 SR5 4x4, 2005 SR5 V8 4x4- All Sold, but not forgotten!
DON'T GET CONFUSED BETWEEN MY PERSONALITY AND MY ATTITUDE. MY PERSONALITY IS WHO I AM...MY ATTITUDE DEPENDS ON WHO YOU ARE
|
|
|
Reply With Quote
|
|
07-18-2015, 11:01 PM
|
#3
|
|
Member
|
|
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
|
|
Member
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
I really hope so too at only 120 000miles! Hopefully I can make the trip back home and perform some tests.
|
|
|
Reply With Quote
|
|
07-19-2015, 08:24 AM
|
#4
|
 |
Senior Member
|
|
Join Date: Oct 2012
Location: CT
Posts: 2,225
Real Name: Ethan
|
|
|
Senior Member
Join Date: Oct 2012
Location: CT
Posts: 2,225
Real Name: Ethan
|
i think the problem lies local to the radiator. if it starts and runs fine and you don't see any coolant leaks along the heads then you can probably rule out any HG failures
__________________
 A lot of stuff I didn't need...
My Build
Quote:
Originally Posted by kfitz77555
oh my god the erection I have from this thread is unreal.
|
|
|
|
Reply With Quote
|
|
07-19-2015, 10:27 AM
|
#5
|
|
Member
|
|
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
|
|
Member
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
No other symptoms. Ill replace the cheaper stuff first.
|
|
|
Reply With Quote
|
|
07-19-2015, 11:43 AM
|
#6
|
 |
Senior Member
|
|
Join Date: Jan 2004
Location: Hawley, PA
Age: 72
Posts: 1,746
|
|
|
Senior Member
Join Date: Jan 2004
Location: Hawley, PA
Age: 72
Posts: 1,746
|
Check to see if the return line from overflow tank to radiator is pinched/blocked. Also you may have air in the system. Did you bleed the system after filling radiator and overflow tank?
__________________
I can Explain it to you, I can't Understand it for you.
'08 Tundra SR5 5.7 V8 Double Cab, White, Equalizer WD system, '91 Coachmen Catalina 260FK, '89 Grumman GSS w/35HP Force O/B, 8' Snowbear utility trailer, 2012 Polaris 500HO LE in Camo, 7 x 14 TWF Landscape trailer w/2 ramps.
|
|
|
Reply With Quote
|
|
07-19-2015, 01:32 PM
|
#7
|
 |
Member
|
|
Join Date: Jul 2015
Location: New York
Posts: 34
|
|
|
Member
Join Date: Jul 2015
Location: New York
Posts: 34
|
It might be as simple as a small leak in the cooling system. When your cooling system cools it will pull coolant back into the radiator through a suctioning effect. If you have any leak even small this will pull air into the cooling system and then when it gets hot and expands pushes more coolant into the overflow. Look at all your hose clamps for any sign of coolant. Might just have to re position a clamp.
Hope for an easy fix.
__________________
2006 4Runner V8 Limited Black 5000K HID's LED interior and exterior lights
|
|
|
Reply With Quote
|
|
07-19-2015, 04:21 PM
|
#8
|
 |
Senior Member
|
|
Join Date: Jun 2008
Location: San Antonio, Texas
Age: 33
Posts: 2,105
|
|
|
Senior Member
Join Date: Jun 2008
Location: San Antonio, Texas
Age: 33
Posts: 2,105
|
Have you check your water pump and gasket? My gasket was bad during one of my track days and raced with the heater on to not over heat. I replaced both the gasket and the water pump as the bearing had a little play and both were original. BTW Toyota has a revised/updated water pump for the 1gr.
__________________
Open diff, auto, bof, suv beats corvettes at a road course. You can't explain that!
My Build http://www.toyota-4runner.org/galler...006-build.html
|
|
|
Reply With Quote
|
|
07-20-2015, 01:06 PM
|
#9
|
 |
Member
|
|
Join Date: Feb 2012
Location: Stockbridge GA. ( formerly Kent WA. ) & ( formerly Grafton MA. )
Posts: 521
|
|
|
Member
Join Date: Feb 2012
Location: Stockbridge GA. ( formerly Kent WA. ) & ( formerly Grafton MA. )
Posts: 521
|
First thing I would do is have the system pressure tested then go from there.
I think autozone will do it for free or your local auto parts store.
__________________
2003 SR5 V6 4WD Stock (totaled) 
2005 Sport Edition SR5 V6 4WD
|
|
|
Reply With Quote
|
|
07-21-2015, 09:01 PM
|
#10
|
|
Member
|
|
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
|
|
Member
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
i have not driven the truck since I got to my desination 11 hours away from home;but today i started the truck and let it run with the rad cap off. There was a lot of air in the system! Even after letting it run for 25min there was still a bubble every once in a while but it was much better. Ill have to see how it does on the way back home thursday.
|
|
|
Reply With Quote
|
|
07-21-2015, 09:37 PM
|
#11
|
|
Member
|
|
Join Date: Feb 2012
Location: Stockbridge GA. ( formerly Kent WA. ) & ( formerly Grafton MA. )
Posts: 521
|
|
|
Member
Join Date: Feb 2012
Location: Stockbridge GA. ( formerly Kent WA. ) & ( formerly Grafton MA. )
Posts: 521
|
Let us know so it will help others here.
__________________
2003 SR5 V6 4WD Stock (totaled)
2005 Sport Edition SR5 V6 4WD
|
|
|
Reply With Quote
|
|
07-21-2015, 10:09 PM
|
#12
|
|
Member
|
|
Join Date: Dec 2008
Location: TX
Posts: 315
|
|
|
Member
Join Date: Dec 2008
Location: TX
Posts: 315
|
Honestly, that sounds like either a pretty good leak, or a blown HG.
__________________
'92 Nissan 240SX - 400 HP/2500 lbs
'07 4Runner Sport Edition V6 RWD
|
|
|
Reply With Quote
|
|
07-22-2015, 12:34 AM
|
#13
|
 |
Member
|
|
Join Date: Sep 2010
Location: Chicago
Age: 51
Posts: 415
Real Name: Rob B.
|
|
|
Member
Join Date: Sep 2010
Location: Chicago
Age: 51
Posts: 415
Real Name: Rob B.
|
I've experienced the same symptoms after doing a coolant change. For some reason these trucks just make it a little more difficult to bleed all the air pockets out of the system. You really need to get the nose of the truck pretty high in the air to help those last few bubbles make their way out.
__________________
2009 GX470 Sport Edition w/ KDSS
-----------------
|
|
|
Reply With Quote
|
|
07-22-2015, 09:15 AM
|
#14
|
|
Member
|
|
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
|
|
Member
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
Quote:
Originally Posted by chitown40
I've experienced the same symptoms after doing a coolant change. For some reason these trucks just make it a little more difficult to bleed all the air pockets out of the system. You really need to get the nose of the truck pretty high in the air to help those last few bubbles make their way out.
|
The problem is that I did not work on the cooling system lately.So air was introduced into the system somehow. Fingers crossed on not being the hg.
|
|
|
Reply With Quote
|
|
08-01-2015, 01:45 PM
|
#15
|
|
Member
|
|
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
|
|
Member
Join Date: Sep 2012
Location: Ottawa,Canada
Posts: 310
|
Passed the Block test. Next up ill fill the cylinders with some pressurised air to see if the coolant will bubble.
|
|
|
Reply With Quote
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
|
Linear Mode
