Vehicle & Technical > Discovery

Still overheating 300tdi....saga continues

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loyalduke:
Well the saga continues as you know I had the head gasket done, new water pump, new radiator and checked the fan.....so the cooling system is working :?  Oh for good measure 2 new thrmostats tried and now removed altogether.

So tootle along at 50-60 mph and its just about ok but still hot (top and bottome hose equally hot) but then try going up a bit of a hill and up the needle climbs(checked the sender).

Top hose hardens with the pressure but as soon as it cools the pressure drops back. There is no noticeable loss of water(expansion cap hissing as water gets v.hot), no contamination present in either coolant or oil.

There has been a increase in fuel consumption and it is noticeable that I have to drop a gear more than normal to pull up a hill and 'acceleration' is not as good as in the winter when it was running cooler :roll:

Advice is mixed but the consensus seems to point towards a cracked head, so Monday off it comes again :cry:  :cry:  and check it over and pressure test it.

Being pessimistic/optomistic if the head is ok.....then what else could it be :?:

With Billing approaching I want to get it sorted this week.....advice please

Jas278:
Blocked Rad, internally or ext....with mud ?

loyalduke:
Jas
Its a new radiator along with all the other bits so I know its not the cooling system.....hence the mystery :?

jnoshea:
Hope you find the solution. Let us know if it's the head causing the problem 'cos mine is overheating too as you know.  I'm losing water from somewhere near the water pump though so I'm pinning my hopes on a new P-gasket and water pump.

jnoshea:
Just a thought but could it be a problem in the drivetrain. I'm guessing that if there is too much friction somewhere like the wheel bearings and axles that the engine would have to work much harder to overcome this. Could explain poor acceleration, power and overheating?  :?

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