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My 4107 is losing coolant from the header tank. Why?

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6ya6ya
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Posted on Jan 02, 2017

perkins48
  • 14338 Answers

SOURCE: saab 1.9tid losing coolant

I would check all hose clamps,tighten to make sure,check for signs of antifreeze.Crawl under and look and check for coolant.Check floor board for wetness.Is there any fluid coming from tail pipe?

Posted on Oct 31, 2012

Hobbit_who
  • 2044 Answers

SOURCE: s type jag water pump replaced now im losing coolant at the overflow on the header tank

Blockage will cause this, Thermostat, Bad Water Pump, Blown Head Gasket....

HEAD GASKET is the Biggie.. Why did you change the Water Pump?

Pressure from the Engine (Blow by) will do exactly this...

Posted on Apr 15, 2013

russ_hill007
  • 3187 Answers

SOURCE: Header tank cap seperation

you have one of the faulty caps that were made you are going to need to replace it with a new one. you will need to prise out the bit stuck with a screw driver and lift it out if any parts brake off you need to take the coolant tank off and empty the broken bits/s out. caps are cheap to replace.. off ebay

Posted on Mar 09, 2014

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1 Answer

Why does my Mini's fan stay running for 20 minutes after engine is switched off & header tank from radiator needs topping up every week?


will assume it the newer mini produced


yes 20 minutes is too long

will need to go to a workshop for inspection
possible answers for the issue

the fan .......all fixable
faulty internal thermostat ..
faulty thermostatic temp switch not switching off
of fan motor not spinning quick enough


the fan thermostatic on /off switch is set that way to cool down the motor and not warp the head or block
after stopping the engine the coolant is at is hottest for a short time
so the fan shuts off when the coolest temp of coolant is reached

header tank needing top ups

check for hose leaks at clamps or small cracks in heater hoses
the cap of the header tank may need replacing
the internal heater radiator may have a leak
(you would have wet carpet inside the car)
a welsh plug may be leaking
radiator may have a hole hole
or other coolant leak unknown

worst case
if the coolant in the header tank looks like it is sludgy
(has oil in it ) or oil dip stick has coolant or water with the oil
there is a possibility the head gasket has blown

mini cooper
thermostat housing one part

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26310899-cpkijx1hgivtayh20u1irnmn-2-6.jpg

Oct 14, 2016 | 2006 Mini One

1 Answer

99 BMW 540i 4.4 V8. Where is header tank located?


Usually on bmws header tank is located at the side of the radiator where the cap is to refill coolant system

Aug 26, 2015 | BMW Cars & Trucks

2 Answers

1987 dodge w150 power ram overheats.could this be air in the coolant lines? I parked the truck because it overheated while driving it.the temp Guage went over 220 -230 by the time I shut it off and kept...


If the unit overheated and there was no coolant flowing into the reserve tank, then there is two possible issues that must be addressed immediately. Either (1) There was not enough coolant in the system. This is because when the coolant heats up it expands and will go to the reserve tank. The fact that there was going to the tank indicates that the system is less than full, or (2) The radiator pressure cap is defective.

I would flush the cooling system, clean the reserve tank, replace the radiator cap, and refill the system and retest.

Dec 29, 2014 | Cars & Trucks

1 Answer

Putting in the antifreeze


remove header tank cap undo drain plug at bottom of radiator and bleed screw at top of radiator once all coolant has drained retighten tthe drain plug pour the new coolant into the header tank waiting for the coolant to drain through system and watch for coolant to come out of the bleed screw , shut bleed screw top up the header tank to the max level replace cap.Now run engine ,dont drive just stay with revs at 1500 open bleed screw to let any trapped air out and wait for the cooling fan to cut in , allow engine to cool down and refill header tank if required and repeat the running/bleeding/fancutting in procedure until when engine has cooled the coolant is near the max mark on header tank

Apr 09, 2014 | Fiat Palio Cars & Trucks

1 Answer

Header tank cap seperation


you have one of the faulty caps that were made you are going to need to replace it with a new one. you will need to prise out the bit stuck with a screw driver and lift it out if any parts brake off you need to take the coolant tank off and empty the broken bits/s out. caps are cheap to replace.. off ebay

Mar 09, 2014 | Vauxhall Cars & Trucks

1 Answer

S type jag water pump replaced now im losing coolant at the overflow on the header tank


Blockage will cause this, Thermostat, Bad Water Pump, Blown Head Gasket....

HEAD GASKET is the Biggie.. Why did you change the Water Pump?

Pressure from the Engine (Blow by) will do exactly this...

Apr 15, 2013 | 1997 Jaguar XK8

1 Answer

Saab 1.9tid losing coolant


I would check all hose clamps,tighten to make sure,check for signs of antifreeze.Crawl under and look and check for coolant.Check floor board for wetness.Is there any fluid coming from tail pipe?

Oct 31, 2012 | Cars & Trucks

1 Answer

SAAB 9-5 LINEAR TID DIESEL SALOON 3.0 DIESEL THE FOLLOWING DEFECT: THE CAR STARTS, RUNS AND DRIVES SWEETLY,THE TEMPERATURE GAUGE NEVER GOES ABOVE THE HALFWAY MARK AND THE HEATER BLOWS CONSTANT HOT AIR....


I had the same problem on my 9-5 vector 3.0 TiD with the top up coolant warning. Nearly became bankrupt trying to diagnose the problem and trips to Saab. Header tank, sensors, pressure tested etc. The Saab squaddies couldn't figure it out until it got worse. It's a head gasket failure despite passing pressure tests initially...sounds like it's still early days on yours. Had to replace the engine for near £5000.but under warranty :-) Reckon 2.5-3k at a good specialists.

Feb 01, 2011 | 2000 Saab 9-3 Viggen

1 Answer

Nissan terrano 2.9 turbo Water in header tank


There is a leaking coolant hose, or a perforation of the Heater Matrix.Often a temporary quick fix is to shut off the incoming Hot Coolant and crimp the return to engine hose with a Long Nose snap lock.
Regards,DT.

Aug 26, 2009 | 2003 Nissan Pathfinder

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