Vehicle & Technical > Discovery

rapid overheating

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Range Rover Blues:
Going high then coing down sounds like a circulation problem so check the 'stat.  IIRC the stat is a 2 stage one that is double-ended, check both ends are as they should be and don't fit a cheap one as I've found they don't fit very well.

jkseries:
Sounds like a plan. I think i'll drain and flush the system at the same time.

Rossko:
Weak antifreeze??  As you bowl along the water in the rad gets cooled nicely and WILL turn to slush in the absence of enough antifreeze.  Then the water doesn't circulate and the engine overheats rapidly.

lurch_917:
depending on what temp youve got out side id go with week anti freeze mix rad gets slugie then

jkseries:
To add another thing into the mix.  Went out for a run today. Got up to temperature nicely and then sat.

Brilliant i though. got home to find the expansion bottle bubbling away nicely with the needle still reading normal.

A new thermostat and flush it is then.

RRB you  said don't fit a cheap stat.  I've looked at the usual places and they only seem to be about £5. Where would an expensive one come from? LR?

Thanks J

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