My ZT has died

ianfletcher · 13th June 2009, 10:08

Over the last week or so my car has been revving high when it was idling which i thought was a faulty icv but now i'm wondering if it could of been an air leak as i've just been out in it and when i got home i heard a noise which sounded like air was being released from somewhere but when i popped the bonnet there was steam bellowing out from either side of the engine and now all the coolant is all over the drive. Could this be head gasket failure?

Phil · 13th June 2009, 10:34

Could be thermostat failure. But coolant leaking from anywhere under pressure would do that. Not nescessarily hgf.

David3807 · 13th June 2009, 10:34

More probably thermostat casing split . HGF is on the last thing to consider in coolant problems with a KV6. Have you had the engine cover off ??

Tatts · 13th June 2009, 10:34

Doubt & hope it's not HGF - pretty rare on the KV6.

Check under the oil filler cap for mayo, likewise the dipstick & coolant res.

If they're all ok, then take the accoustic cover off & look into the V of the engine. I suspect it's the thermostat housing thats gone. Or a coolant pipe.

ianfletcher · 13th June 2009, 10:45

Could a cracked thermostat housing cause an air leak though as my revs were nearly up at 2000 rpm?

Phil · 13th June 2009, 10:57

Quote:

Originally Posted by ianfletcher1979

Could a cracked thermostat housing cause an air leak though as my revs were nearly up at 2000 rpm?

No, that could be a separate issue.

ianfletcher · 13th June 2009, 11:01

Where on earth is the thermostat housing and what does it look like as i cant see anything. Am i going to have to remove the inlet manifold?

Phil · 13th June 2009, 11:05

Quote:

Originally Posted by ianfletcher1979

Where on earth is the thermostat housing and what does it look like as i cant see anything. Am i going to have to remove the inlet manifold?

It is under the inlet manifold, but if you remove the cover, you should be able to see it with a torch.

ianfletcher · 13th June 2009, 11:47

Quote:

Originally Posted by Phil

It is under the inlet manifold, but if you remove the cover, you should be able to see it with a torch.

I cant see a thing!

Phil · 13th June 2009, 11:59

I have got to go out in a bit but I'll see if I can get a pic of mine later unless someone beats me to it.

13th June 2009, 10:08	#1
ianfletcher I really should get out more....... BMW 1 series Join Date: Oct 2008 Location: Bolton Posts: 2,094 Thanks: 12 Thanked 40 Times in 36 Posts	My ZT has died Over the last week or so my car has been revving high when it was idling which i thought was a faulty icv but now i'm wondering if it could of been an air leak as i've just been out in it and when i got home i heard a noise which sounded like air was being released from somewhere but when i popped the bonnet there was steam bellowing out from either side of the engine and now all the coolant is all over the drive. Could this be head gasket failure?

13th June 2009, 10:34	#2
Phil This is my second home Rover 75 CDT Connoisseur SE Join Date: Nov 2006 Location: Wales Posts: 12,227 Thanks: 469 Thanked 523 Times in 241 Posts	Could be thermostat failure. But coolant leaking from anywhere under pressure would do that. Not nescessarily hgf. __________________

13th June 2009, 10:34	#4
Tatts This is my second home MG6 TL Join Date: Nov 2006 Location: Tarn Posts: 5,269 Thanks: 2 Thanked 46 Times in 37 Posts	Doubt & hope it's not HGF - pretty rare on the KV6. Check under the oil filler cap for mayo, likewise the dipstick & coolant res. If they're all ok, then take the accoustic cover off & look into the V of the engine. I suspect it's the thermostat housing thats gone. Or a coolant pipe. __________________ http://www.wcgsig.com/115562.gif

13th June 2009, 11:59	#10
Phil This is my second home Rover 75 CDT Connoisseur SE Join Date: Nov 2006 Location: Wales Posts: 12,227 Thanks: 469 Thanked 523 Times in 241 Posts	I have got to go out in a bit but I'll see if I can get a pic of mine later unless someone beats me to it. __________________

13th June 2009, 10:34	#3
David3807 Posted a thing or two 2002 R75 Conn SE 2.5l Auto Tourer, 2001 R75 Conn SE 2.5 Auto Saloon Join Date: Nov 2006 Location: Gravesend Posts: 1,897 Thanks: 0 Thanked 2 Times in 2 Posts	More probably thermostat casing split . HGF is on the last thing to consider in coolant problems with a KV6. Have you had the engine cover off ??

13th June 2009, 10:45	#5
ianfletcher I really should get out more....... BMW 1 series Join Date: Oct 2008 Location: Bolton Posts: 2,094 Thanks: 12 Thanked 40 Times in 36 Posts	Could a cracked thermostat housing cause an air leak though as my revs were nearly up at 2000 rpm?

13th June 2009, 11:01	#7
ianfletcher I really should get out more....... BMW 1 series Join Date: Oct 2008 Location: Bolton Posts: 2,094 Thanks: 12 Thanked 40 Times in 36 Posts	Where on earth is the thermostat housing and what does it look like as i cant see anything. Am i going to have to remove the inlet manifold?