Go Back   Team-BHP > Under the Hood > Technical Stuff


Reply
 
Thread Tools Search this Thread
Old 12th November 2016, 19:07   #46
BHPian
 
Join Date: Mar 2011
Location: Mumbai
Posts: 530
Thanked: 201 Times
Default Re: Coolant level low, but no symptoms?

Mods Please merge the posts if required since Ive posted 4 times back to back or delete from the old posts.

UPDATE : Found a small leak in a hose which connects to the expansion tank. This was fixed and along with the new cap should do the trick.

The Crappy Bit : Since Ive been running on water for a while now I had to replace the coolant.
The Chevrolet Beat does not have a drain plug for the radiator ! Mechanic couldnt find one and neither could I ! It seems after switching to long life coolant in 2003-04 GM has removed the drain plug in most of its cars !
We had to drain the coolant by removing the lower radiator return pipe, did a flush and refilled with new coolant. Im a bit doubtful that we managed to get all the old stuff out, even though the heater was run. Only 4lts of coolant+water went in. Hopefully since Ive added ateast 8-10 lts of water since the leak was detected, most of the old coolant is out or highly dilute so it wont cause an issue if left inside. Also, traces of flush hopefully wont be an issue if its mixed in the remaining bit.

So far the coolant level and temps are holding steady in the normal range after around 25kms of driving today so it leads me to believe that the leak has been fixed and there isnt an air bubble in the system.
I want to try and burp the system just to check so I would appreciate tips on how to do this on a closed loop system without any drain plugs or bleeder valves.
Any feedback on the current situation would also be appreciated.
Mortis is offline   Reply With Quote
Old 13th November 2016, 10:34   #47
Distinguished - BHPian
 
sgiitk's Avatar
 
Join Date: Dec 2007
Location: Kanpur
Posts: 6,637
Thanked: 3,050 Times
Infractions: 0/1 (4)
Default Re: Coolant level low, but no symptoms?

@Mortis; The system will burp itself. Just keep an eye and top up a few (say two or three) times as the coolant level will initially drop. Of course you can run the car on idle (with the heater on at full) for say five minutes, and most of the burping will be done. One of the toughest points to burp is the heater. Still I will top up once after a few days.

Last edited by sgiitk : 13th November 2016 at 10:35.
sgiitk is offline   Reply With Quote
Old 13th November 2016, 12:07   #48
BHPian
 
Join Date: Sep 2007
Location: Banglore
Posts: 308
Thanked: 77 Times
Default Re: Coolant level low, but no symptoms?

I am also facing coolant level drop in reservoir with my Innova. I am seeing this problem from last 1-2 years. But it's a very minor leak, after driving some 500 - 1000km I can see the drop. But no visible leak any where.

Checked with Toyota multiple times, but still we couldn't root cause the issue. Last time they asked me to replace Water Pump, even after I can see the same behavior.
Look at this thread for more details.
https://www.team-bhp.com/forum/long-...ml#post4091759
kavu75 is online now   Reply With Quote
Old 13th November 2016, 13:03   #49
Senior - BHPian
 
lurker's Avatar
 
Join Date: Jun 2006
Location: Tura
Posts: 1,228
Thanked: 481 Times
Default Re: Coolant level low, but no symptoms?

Do you guys change your coolant every 6 months or whenever it is serviced ?? The service guys remove the coolant and usually refill with water and some mild coolant. This is what I have noted in my experience. When you reconnect the coolant-engine block hose, try to apply RTV sealent and reconnect, then it will not leak and you will not lose coolant. Sometimes the hose develops a crack also, it is just a rubber hose. Change the hose and you will not see any drop in coolant.

Last week I changed coolant myself in my Maruti Versa, and gave the entire coolant system a cleanup by disconnecting coolant drain hose and coolant inlet hose from radiator. I shoved in a rubber hose running water into the inlet hose, started the engine and allowed the water pump to circulate the fresh water through cooling system to drain out the entire old coolant and flush the system. The engine seems happy after that.
lurker is offline   Reply With Quote
Old 13th November 2016, 13:48   #50
Senior - BHPian
 
Join Date: Oct 2012
Location: Delhi
Posts: 2,548
Thanked: 4,524 Times
Default Re: Coolant level low, but no symptoms?

Quote:
Originally Posted by lurker View Post
The engine seems happy after that.
How do you measure that? But seriously, changing coolant should be done based on the manufacturers recommended schedule. On modern cars it is really important to use the correct coolant liquid as well. These days it is much more than just an antifreeze.

Coolant liquid can be quite toxic, so you are supposed to handle it with gloves and dispose of it appropriately. If spilled on your carís paintwork, wash it of with plenty of water.

Unfortunately, not having a drain plug for the coolant liquid seems to becoming more common! You just need to disconnect a hose or pipe, preferably on the lowest place in the cooling circuit.

Opening the heater controls to ensure old fluid is flushed and new fluid is appropriately distributed in all of the system is a good practice. Mind you these days on a lot of modern cars the heater controls are electronically operated and simply wonít open unless the computer measures the corresponding cooling liquid temperature. So the only way is to actually drive the car, get the engine up to normal operating temperature and open up the heater fully.

Just changed the cooling liquid on my Jaguar and there is no other way to do this as the computer keeps all the heating controls shut till the computer registers the correct temperature values.

Jeroen
Jeroen is offline   Reply With Quote
Old 13th November 2016, 13:53   #51
Senior - BHPian
 
lurker's Avatar
 
Join Date: Jun 2006
Location: Tura
Posts: 1,228
Thanked: 481 Times
Default Re: Coolant level low, but no symptoms?

Quote:
Originally Posted by Jeroen View Post
Coolant liquid can be quite toxic, so you are supposed to handle it with gloves and dispose of it appropriately. If spilled on your carís paintwork, wash it of with plenty of water.


Jeroen
Collected as much as I could in a drain tub and down the toilet it went. I have cats so I am pretty careful not to leave any coolant spilled outside.
lurker is offline   Reply With Quote
Old 13th November 2016, 14:00   #52
Senior - BHPian
 
Join Date: Oct 2012
Location: Delhi
Posts: 2,548
Thanked: 4,524 Times
Default Re: Coolant level low, but no symptoms?

Quote:
Originally Posted by lurker View Post
Collected as much as I could in a drain tub and down the toilet it went. I have cats so I am pretty careful not to leave any coolant spilled outside.
Good, sort of. I guess in India this is as good as you can make it. Here in the Netherlands, and most of Europe, you are not supposed to flush it down the toilet either. Not that anybody would know, but its something you just would not do.

You take it to the council waste disposal, same for used lub oil, hydraulic fluid etc.

In the USA most of the car part stores, would have facilities to dispose of your various liquids. You buy the new stuff from them, drain the old stuff and bring it back to the store. Very convenient!

These days in parts of Europe, washing oneís car in front of your own house is frowned upon. In fact in certain towns it is illegal! All about green environment!

Jeroen
Jeroen is offline   Reply With Quote
Old 13th November 2016, 14:13   #53
Senior - BHPian
 
lurker's Avatar
 
Join Date: Jun 2006
Location: Tura
Posts: 1,228
Thanked: 481 Times
Default Re: Coolant level low, but no symptoms?

Quote:
Originally Posted by Jeroen View Post
These days in parts of Europe, washing oneís car in front of your own house is frowned upon. In fact in certain towns it is illegal! All about green environment!

Jeroen
though this is couched in green environment, I suppose it has more to do with neighbours jealousy or a neighbour cleaning his car to go one up on them.

I am finding it difficult to dispose off my accumulated old engine oil, what to speak of used coolant. Old engine oil can be slightly filtered and used as a surface coating for wooden boats or used as furnace oil in power plants. I know general places that will take it, but yet to find time to make contact. Workshops, service stations do not take YOUR used oil here.
lurker is offline   Reply With Quote
Old 13th November 2016, 18:14   #54
BHPian
 
Join Date: Mar 2011
Location: Mumbai
Posts: 530
Thanked: 201 Times
Default Re: Coolant level low, but no symptoms?

It didnt burp while idling for 15-20 mins but after another 20km round trip its dropped an inch which I have topped up. No sign of gelling so far due to changing coolant types so I think Im right in guessing that at the very least most of the old coolant got replaced by water during this troubleshooting period.
Seriously though not having a drain plug is just a poor design decision
Mortis is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
What are the symptoms of suspension problem / failure? Shan2nu Technical Stuff 32 26th July 2016 22:52
Engine Coolant Level Aashutosh Technical Stuff 49 6th June 2016 23:04
Pathetic EcoSport delivery (Shreeji Ford): Low coolant levels, charging over MRP etc. ACM Indian Car Dealerships 30 30th September 2014 15:17
Coolant low on new Optra 1.6 with no other symptoms Ravich Technical Stuff 2 29th August 2006 09:22


All times are GMT +5.5. The time now is 01:24.

Copyright ©2000 - 2016, Team-BHP.com
Proudly powered by E2E Networks