over heating?

andy ridley · 26th September 2009, 10:29

Hi,
Just had a strange problem with my ZT 1.8.
Doing around 70mph.. The high temperature ligh came on, pull over straight away and the enging returned straight to normal !!
This happened twice on the short run i was doing.. Around town in traffic no problems.
Temp in car heaters is ok with no problems.
I have noticed with the car stopped the radiator is cool to touch and the expansion tank is hot ?
Any ideas..
Thanks for the help.
Andy.
2004 model

Gman2 · 26th September 2009, 10:46

Don't use the car for the mo' and let everything cool down then check the coolant level and oil as a starter for ten - sorry if that granny and eggs

How long have you had the car and how often do you check the coolant level? Have a good search on the forum for overheating etc as it's easy to jump to conclusions that it's HGF when it's not. Let us know you're findings.

T-Cut · 26th September 2009, 11:48

Favourite leaky places in the K18T are the pressure cap (common to all) and the plastic T-piece just behind the radiator (top). A metal Gerry_T is highly recommended.

TC

andy ridley · 26th September 2009, 11:51

Water levels and oil all ok.
engine and pipes all red hot when running radiator cold?
no emulsion in the water or oil.
just take her for a slow dive in to town and back.
both upper and lower radiator hoses solid, with the radiator fan running all the time once the engine is warmed up.
Also noticed when i stop the car in the town then restarted the car there was a water slooshing nosies from the engine area.. also when the car was stopped at home the expansion tank was hissing???
I think there is a blockage in the radiator or the Head gasket is gone / gasses are getting in to the water and gas locking the system if this makes any sense!!
The car has one of these after maket warrenties with it so all is not lost..
so will give to them to sort out..

andy ridley · 26th September 2009, 11:53

T cut..
Sounds intresting..
I did notice that there was water around this area after the first incident.
also this is the area that is hissing..
Thanks..

Gman2 · 26th September 2009, 20:02

I'll stand corrected but I'm not sure the "T-piece" is applicable to the non-turbo 1.8

Your fan should only be running all the time at low speed with the aircon on. If it's running all the time without the aircon on then there is a prob somewhere. When I had hgf the car was struggling for power, the heater packed up, needle was at max and I had mayo under the cap. This happened quite quickly. If you have none of this then you may indeed have a blockage. If it's under warranty get it back to fix. Also it's worth considering getting them to upgrade to the MLS gasket - better still you buy and supply to make sure it gets fitted!

pab · 26th September 2009, 20:18

Quote:

Originally Posted by Gman2

I'll stand corrected but I'm not sure the "T-piece" is applicable to the non-turbo 1.8

Your fan should only be running all the time at low speed with the aircon on. If it's running all the time without the aircon on then there is a prob somewhere. When I had hgf the car was struggling for power, the heater packed up, needle was at max and I had mayo under the cap. This happened quite quickly. If you have none of this then you may indeed have a blockage. If it's under warranty get it back to fix. Also it's worth considering getting them to upgrade to the MLS gasket - better still you buy and supply to make sure it gets fitted!

the t-piece is in the top hose of the facelift 120 without the the turbo inlet pipe..check the prt..maybe stuck shut

Gman2 · 26th September 2009, 20:53

OK Pab point taken - my 02 R75 has no T-piece.

T-Cut · 27th September 2009, 17:27

A late '04 1.8 has the T-piece cos it has a PRT. An '02 doesn't.

TC

26th September 2009, 10:29	#1
andy ridley Newbie ZT 120+ face lift model late 04 Join Date: May 2009 Location: north east Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	over heating? Hi, Just had a strange problem with my ZT 1.8. Doing around 70mph.. The high temperature ligh came on, pull over straight away and the enging returned straight to normal !! This happened twice on the short run i was doing.. Around town in traffic no problems. Temp in car heaters is ok with no problems. I have noticed with the car stopped the radiator is cool to touch and the expansion tank is hot ? Any ideas.. Thanks for the help. Andy. 2004 model

26th September 2009, 11:51	#4
andy ridley Newbie ZT 120+ face lift model late 04 Join Date: May 2009 Location: north east Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	update.. Water levels and oil all ok. engine and pipes all red hot when running radiator cold? no emulsion in the water or oil. just take her for a slow dive in to town and back. both upper and lower radiator hoses solid, with the radiator fan running all the time once the engine is warmed up. Also noticed when i stop the car in the town then restarted the car there was a water slooshing nosies from the engine area.. also when the car was stopped at home the expansion tank was hissing??? I think there is a blockage in the radiator or the Head gasket is gone / gasses are getting in to the water and gas locking the system if this makes any sense!! The car has one of these after maket warrenties with it so all is not lost.. so will give to them to sort out..

26th September 2009, 11:53	#5
andy ridley Newbie ZT 120+ face lift model late 04 Join Date: May 2009 Location: north east Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	thanks. T cut.. Sounds intresting.. I did notice that there was water around this area after the first incident. also this is the area that is hissing.. Thanks..

26th September 2009, 10:46	#2
Gman2 Posted a thing or two ZTT+ 1.8T, mgf 1.8 Join Date: Sep 2007 Location: Warrington Posts: 1,550 Thanks: 28 Thanked 65 Times in 42 Posts	Don't use the car for the mo' and let everything cool down then check the coolant level and oil as a starter for ten - sorry if that granny and eggs How long have you had the car and how often do you check the coolant level? Have a good search on the forum for overheating etc as it's easy to jump to conclusions that it's HGF when it's not. Let us know you're findings.

26th September 2009, 11:48	#3
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	Favourite leaky places in the K18T are the pressure cap (common to all) and the plastic T-piece just behind the radiator (top). A metal Gerry_T is highly recommended. TC

26th September 2009, 20:02	#6
Gman2 Posted a thing or two ZTT+ 1.8T, mgf 1.8 Join Date: Sep 2007 Location: Warrington Posts: 1,550 Thanks: 28 Thanked 65 Times in 42 Posts	I'll stand corrected but I'm not sure the "T-piece" is applicable to the non-turbo 1.8 Your fan should only be running all the time at low speed with the aircon on. If it's running all the time without the aircon on then there is a prob somewhere. When I had hgf the car was struggling for power, the heater packed up, needle was at max and I had mayo under the cap. This happened quite quickly. If you have none of this then you may indeed have a blockage. If it's under warranty get it back to fix. Also it's worth considering getting them to upgrade to the MLS gasket - better still you buy and supply to make sure it gets fitted!

26th September 2009, 20:53	#8
Gman2 Posted a thing or two ZTT+ 1.8T, mgf 1.8 Join Date: Sep 2007 Location: Warrington Posts: 1,550 Thanks: 28 Thanked 65 Times in 42 Posts	OK Pab point taken - my 02 R75 has no T-piece.

27th September 2009, 17:27	#9
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	A late '04 1.8 has the T-piece cos it has a PRT. An '02 doesn't. TC