Overheating

sean flood · 24th May 2024, 06:03

Hi all got a problem with overheating on my diesel tourer the temperature is fluctuating between halfway and three quarters on the temp gauge the fan is cutting in at high speed and bringing back to normal any advice would be very welcome thanks Sean

macafee2 · 24th May 2024, 06:22

Yon do not mention what you have done to sole the problem and so I can only offer advice which you may have already done have you checked the water level?

macafee2

sean flood · 24th May 2024, 07:08

Hi Macafee
It only happened on a journey to Devon yesterday I am going to check levels after breakfast although coolant level was ok as I recently checked it the car does stand for long periods not sure if the stat can jam closed !!!

SD1too · 24th May 2024, 08:10

Sean,

Turn on the ignition or start the engine from cold and press the windscreen demist button. Now get out of the car and walk to the radiator grille and listen carefully. Can you hear the radiator fan running continuously?

Simon

sean flood · 24th May 2024, 08:47

Hi Simon yeh the fan is ok I recently fitted a new gold fan resistor and the fan was cutting in ok yesterday just checked coolant and level is ok I have had the car for 19 years now and it’s never had a coolant change or flush wondering if I need to do that, thanks for your help Sean

Arctic · 24th May 2024, 08:56

Quote:

Originally Posted by sean flood

Hi Macafee
It only happened on a journey to Devon yesterday I am going to check levels after breakfast although coolant level was ok as I recently checked it the car does stand for long periods not sure if the stat can jam closed !!!

When you check the coolant in the header tank, make sure there is not to much in, you only need it just above the max mark.

1

This is to much.

2

To low.

3

Make sure the coolant is correct drive it and if the temp rises open up the heating to full and see if it goes down.

SD1too · 24th May 2024, 11:05

That's very good advice from Arctic there Sean. With the expansion tank cap removed you should be able to read the 'MAX' tab but not the 'MIN' tab below it.

Was it a hot day when you travelled to Devon with the air conditioning on? Were you towing?

Simon

sean flood · 24th May 2024, 15:59

Hi guys thanks for the replies will check the level in the morning when cold went out today about 12 miles away and was fine just pooling coming back I booted it a bit up hills and the temp rose to three quarters again seems to be mainly when I put my foot down a bit trouble is I do enjoy that re map from years ago ��

24th May 2024, 06:03	#1
sean flood Newbie 75 tourer Join Date: Jan 2012 Location: Southampton Posts: 25 Thanks: 5 Thanked 3 Times in 3 Posts	Overheating Hi all got a problem with overheating on my diesel tourer the temperature is fluctuating between halfway and three quarters on the temp gauge the fan is cutting in at high speed and bringing back to normal any advice would be very welcome thanks Sean

24th May 2024, 08:10	#4
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,651 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Sean, Turn on the ignition or start the engine from cold and press the windscreen demist button. Now get out of the car and walk to the radiator grille and listen carefully. Can you hear the radiator fan running continuously? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

24th May 2024, 11:05	#7
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,651 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	That's very good advice from Arctic there Sean. With the expansion tank cap removed you should be able to read the 'MAX' tab but not the 'MIN' tab below it. Was it a hot day when you travelled to Devon with the air conditioning on? Were you towing? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

24th May 2024, 06:22	#2
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 15,009 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	Yon do not mention what you have done to sole the problem and so I can only offer advice which you may have already done have you checked the water level? macafee2

24th May 2024, 07:08	#3
sean flood Newbie 75 tourer Join Date: Jan 2012 Location: Southampton Posts: 25 Thanks: 5 Thanked 3 Times in 3 Posts	Hi Macafee It only happened on a journey to Devon yesterday I am going to check levels after breakfast although coolant level was ok as I recently checked it the car does stand for long periods not sure if the stat can jam closed !!!

24th May 2024, 08:47	#5
sean flood Newbie 75 tourer Join Date: Jan 2012 Location: Southampton Posts: 25 Thanks: 5 Thanked 3 Times in 3 Posts	Hi Simon yeh the fan is ok I recently fitted a new gold fan resistor and the fan was cutting in ok yesterday just checked coolant and level is ok I have had the car for 19 years now and it’s never had a coolant change or flush wondering if I need to do that, thanks for your help Sean

24th May 2024, 15:59	#8
sean flood Newbie 75 tourer Join Date: Jan 2012 Location: Southampton Posts: 25 Thanks: 5 Thanked 3 Times in 3 Posts	Hi guys thanks for the replies will check the level in the morning when cold went out today about 12 miles away and was fine just pooling coming back I booted it a bit up hills and the temp rose to three quarters again seems to be mainly when I put my foot down a bit trouble is I do enjoy that re map from years ago ��