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For petrol it's blue fluid that goes yellow, but the change is instant.. seconds
P38A Diesel losing coolant.
- Thread starter Grrrrrr
- Start date
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It certianly went yellow pretty quick.... still, no rain forecast for Saturday at least.
Last edited:
Grrrrrr
Technician, Bodgit & Scarper Ltd
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Maybe the change starts instantly but takes a few seconds to complete?
The v8 probably kicks out more gases!
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Datatek
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Grrrrrr
Technician, Bodgit & Scarper Ltd
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Cracked head
Bloody hope not. It was brand new 2 years ago. Of course, the wife driving it with no coolant won't have helped.
Datatek
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How did she drive it without coolant? They go into limp mode PDQ as I found out when the plastic water pump failed.
Grrrrrr
Technician, Bodgit & Scarper Ltd
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Manual box doesn't seem to do that. Or mine is so old it doesn't. Or she just carried on anyway.
RangeRoller dt
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No 3rd sensor on early dt. Mine did go into limp mode but not straight away. BECM does iirc? It was more than 10 seconds so more than a Kermie-instant. 3-4 mins.
That was with a huge gaping hole in rad when pump blew. Little to no coolant no pump or fan even present and belt was long gone. Kept driving it to a safe place to stop so it cut out few times with overheat shutdown. was no subsequent issue with head cracking or anything on 150,000 mile engine. Could just be luck though. Your Sniff test suggests it’s atleast the gasket perhaps head itself is fine
That was with a huge gaping hole in rad when pump blew. Little to no coolant no pump or fan even present and belt was long gone. Kept driving it to a safe place to stop so it cut out few times with overheat shutdown. was no subsequent issue with head cracking or anything on 150,000 mile engine. Could just be luck though. Your Sniff test suggests it’s atleast the gasket perhaps head itself is fine
Datatek
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Limp mode is from the EDC via the EDC coolant sensor but if no coolant in the head, it will not register an overheat.
Grrrrrr
Technician, Bodgit & Scarper Ltd
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I wonder what temperature it is set to?
I've seen my temperature go to max with the red light on and no difference in performance. Maybe it has to be up there for 5 minutes as RRDT implies.
Datatek
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I don't know on the old one's but both mine went into limp mode PDQ when the gauge went into the red.
RangeRoller dt
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severe power loss more than pulling your MAP off. Not something you wouldn’t notice. Maybe it didn’t function for some reason? Or maybe mine was ultra cooked
Grrrrrr
Technician, Bodgit & Scarper Ltd
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OK. Head and block all seem straight. Cylinder head gasket shows slight sign of blow on cylinder 6. I'd heard Reinz gaskets were a little suspect recently and this seems to confirm that.
Grrrrrr
Technician, Bodgit & Scarper Ltd
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And the head ...
