Recent Topics
1991 Toyota Previa New JDM engine Redline
by Kurtatron
06/21/18 06:26 PM
8 yr old channeling John Bonham
by Toy4x4
06/21/18 06:02 PM
Traveller nlgi 2
by Spitter
06/21/18 05:33 PM
Upgrading the Kohler 7000 series air cleaner
by Patrick0525
06/21/18 05:08 PM
Any nano reefers here?
by RichardS
06/21/18 05:04 PM
ARC remanufactured Power Steering Pump
by Pajero
06/21/18 04:58 PM
John Deere "Easy Change" System gimmick
by SnowmanCO
06/21/18 04:55 PM
Oz Planstic Bag Bans - not so green.
by Shannow
06/21/18 04:31 PM
help me choose...
by chaindrive
06/21/18 04:07 PM
France F1 Grand Prix
by DeepFriar
06/21/18 03:16 PM
Valvoline High Mileage with maxlife tech semi-syn
by bradtech
06/21/18 03:16 PM
Best additive in oil to clean sludge?
by ffgb
06/21/18 02:19 PM
Who is a Dirt Track regular?
by thooks
06/21/18 01:39 PM
eco plug oil plug video is restricted
by edwardh1
06/21/18 01:27 PM
Political comments
by ridgerunner
06/21/18 01:23 PM
My Ford orange turned pink
by BeerCan
06/21/18 12:45 PM
Any plants/garden experts?
by maverickfhs
06/21/18 12:43 PM
Internet Sales Tax O.K.ed by Supreme Court
by doitmyself
06/21/18 12:23 PM
Brake fluid for a '03 Volvo S60
by earthworm
06/21/18 11:22 AM
Oil Weight Change - Mid Production Cycle
by PolarisX
06/21/18 11:20 AM
Newest Members
wil892, Spddm0n, ronw1309, Suth31, yamahaboy125
65286 Registered Users
Who's Online
120 registered (5AcresAndAFool, aquariuscsm, 97prizm, alphadog, ArrestMeRedZ, 13 invisible), 1522 Guests and 36 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65286 Members
67 Forums
285727 Topics
4768578 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4518974 - 09/17/17 08:59 PM Bubbles in the upper radiator hose
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
I have been very aware about how is the cooling system is working because I am going to do a long travel with my car the next month. I have noticed that when I get home and the engine is at operating temp I can feel bubbles in the upper radiator hose (the coolant is boiling), my coolant temp gauge is as normal in the middle and my cooling fan isnīt always on in this condition, I mean the cooling fan switch turns the fan on and off, it isnīt on all the time like when the engine is really overheating. I have keeping track off the coolant levels for one week and I havenīt lost any coolant.

Are this bubbles normal? Should the coolant boil at normal engine operating temp?

I am going to do a 2nd coolant flush and put a new radiator cap anyway but I would like to know if this condition is normal.

Top
#4519037 - 09/17/17 10:13 PM Re: Bubbles in the upper radiator hose [Re: Emanuel]
Reddy45 Offline


Registered: 08/15/08
Posts: 2968
Loc: USA
New radiator cap may fix it. If the system cannot hold pressure then the water/coolant will want to boil at a lower temp than normal.

Top
#4519038 - 09/17/17 10:17 PM Re: Bubbles in the upper radiator hose [Re: Emanuel]
JimPghPA Offline


Registered: 08/22/09
Posts: 3859
Loc: Pittsburgh,PA U.S.A.
Bubbles in coolant is not normal and if the engine is not over-heating it usually indicates a blown head gasket.

If I were you I would be looking for another vehicle to take on your long trip next month.
_________________________
Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa


Top
#4519045 - 09/17/17 10:23 PM Re: Bubbles in the upper radiator hose [Re: Emanuel]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
Do you know the coolant is 50/50 mix with water?

Do you have an actual gauge that provides the temperature of the coolant in Celcius?

I agree with the possibilty of a bad radiator cap if the coolant mixture is unknown but the risk of a blown head gasket is also a real possibilty.
_________________________
Multiple Diesel and Gasoline vehicles

Top
#4519048 - 09/17/17 10:25 PM Re: Bubbles in the upper radiator hose [Re: Emanuel]
JimPghPA Offline


Registered: 08/22/09
Posts: 3859
Loc: Pittsburgh,PA U.S.A.
If it is over-heating and also with over-heating having bubbles in the coolant then it could either be a clogged radiator, or a water-pump that is not circulating enough coolant.

But if it is not over-heating and has bubbles in the coolant then look for a blown head gasket.
_________________________
Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa


Top
#4519051 - 09/17/17 10:27 PM Re: Bubbles in the upper radiator hose [Re: ArcticDriver]
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
The gauge isnīt in celsius, but I thought that the middle in the gauge was normal operating temp...

Top
#4519053 - 09/17/17 10:28 PM Re: Bubbles in the upper radiator hose [Re: Emanuel]
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
The head gasket was changed the last year, and the head was resurfaced too so I think it might be the radiator cap

Top
#4519061 - 09/17/17 10:42 PM Re: Bubbles in the upper radiator hose [Re: Emanuel]
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
I don't think the problem is related to not enough flow from the water pump, because the temp gauge will be higher and the cooling fan would be on all the time.

Top
#4519070 - 09/17/17 11:03 PM Re: Bubbles in the upper radiator hose [Re: Emanuel]
andyd Offline


Registered: 09/25/04
Posts: 7147
Loc: Marshfield , MA
Another vote for a cap. If that doesn't fix it, the increase in pressure may make the trouble worse enough to make the diagnosis easy. Carry a few gallons of water and pay attention to what the engine sounds and smells like. If the coolant is mixing with the oil, that is bad. But if the oil is clear, all you need is to carry enough water. This is a manageable trouble, but you have to pay attention grin2
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

Top
#4519099 - 09/18/17 01:12 AM Re: Bubbles in the upper radiator hose [Re: Emanuel]
Colt45ws Offline


Registered: 08/15/06
Posts: 9640
Loc: Central Washington
Agree with coolant cap. There are hot spots in the engine that will boil coolant if there is no pressure. Its possible you are not working the car hard enough to overheat it but this condition will usually lead to overheating.
_________________________
-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2

Top
#4519143 - 09/18/17 06:06 AM Re: Bubbles in the upper radiator hose [Re: Emanuel]
demarpaint Offline


Registered: 07/03/05
Posts: 29771
Loc: NY
Odds are it is the radiator cap, but it could also be the head gasket. I've seen replaced head gaskets fail in less than a year. I would pressure test the cooling system and test the radiator cap as well, and go from there. There's nothing wrong with playing it safe, especially in a case where the head gasket was replaced.
_________________________
God Bless Our Troops


Top
#4519258 - 09/18/17 09:13 AM Re: Bubbles in the upper radiator hose [Re: JimPghPA]
Bgallagher Offline


Registered: 04/17/12
Posts: 3159
Loc: Boston, MA
Originally Posted By: JimPghPA
Bubbles in coolant is not normal and if the engine is not over-heating it usually indicates a blown head gasket.

If I were you I would be looking for another vehicle to take on your long trip next month.


+1 That being said I would check the oil and coolant and possibly sending a sample to have it tested. Only way to be sure. Otherwise I would replace the cap and try burping the system of any air.
_________________________
2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G

Top
#4519288 - 09/18/17 10:16 AM Re: Bubbles in the upper radiator hose [Re: Emanuel]
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
There arenīt any traces of oil in the coolant or traces of coolant in the oil, and Iīm not loosing any coolant. Today I will put the new radiator cap and see

Top
#4519439 - 09/18/17 01:43 PM Re: Bubbles in the upper radiator hose [Re: Bgallagher]
demarpaint Offline


Registered: 07/03/05
Posts: 29771
Loc: NY
Originally Posted By: Bgallagher
Originally Posted By: JimPghPA
Bubbles in coolant is not normal and if the engine is not over-heating it usually indicates a blown head gasket.

If I were you I would be looking for another vehicle to take on your long trip next month.


+1 That being said I would check the oil and coolant and possibly sending a sample to have it tested. Only way to be sure. Otherwise I would replace the cap and try burping the system of any air.


Pressure testing will tell you in a matter of minutes if the HG is bad or not.
_________________________
God Bless Our Troops


Top
#4519459 - 09/18/17 02:06 PM Re: Bubbles in the upper radiator hose [Re: demarpaint]
Bgallagher Offline


Registered: 04/17/12
Posts: 3159
Loc: Boston, MA
Originally Posted By: demarpaint
Originally Posted By: Bgallagher
Originally Posted By: JimPghPA
Bubbles in coolant is not normal and if the engine is not over-heating it usually indicates a blown head gasket.

If I were you I would be looking for another vehicle to take on your long trip next month.


+1 That being said I would check the oil and coolant and possibly sending a sample to have it tested. Only way to be sure. Otherwise I would replace the cap and try burping the system of any air.


Pressure testing will tell you in a matter of minutes if the HG is bad or not.


True but I always preferred to have it sent out and see just how much if any is being contaminated.
_________________________
2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G

Top
Page 1 of 2 1 2 >