Question about 1998 Jaguar XJ8L
Took into a jag shop to have a tune up change thermostat thermostat failed now the hosing was bad replaced that now they say the top hose is holding to much pressure they say maybe exhaust is getting into it Blown Heads ?
This can easily be confirmed by a carbon monoxide test, on the cooling system, the fluid in the tester will change color proving head / head gasket failure.
If this is confirmed, the spark plugs can be removed and the cooling system topped up, and pressure tested to 15lb sq.in.for 15 min or so.
The engine is then spun over, and any failure should be obvious by the coolant coming out from the spark plug holes.
The necessary repair can then be carried out.
Hope this is of help.
Good Luck !
A FixYa rating would be appreciated thank you.
P.S. This is the 3rd time I have posted you an answer,and nothing is posted up. Gremlins somewhere ?
Third time lucky ?
Posted on Jan 29, 2009
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