Coolant Temp Warning - pegged to red. Holy crap.

[wpoll]

Originally Posted by Oldmactech

Thinking that too, just refilled the coolant let it idle up to op temp in the driveway.- scanner shows 82c engine coolant 75c radiator exit coolant. Upper and lower hoses fairly tight, hot. Squeezed on both to push any air through. Still no fan connected so it will likely not cool properly.

I assume the engine temp should read a little higher than the coolant exit temp if the radiator is cooling a little.

One odd thing. Other day I drove it a few mins up to temp and all was fine but the next AM the coolant hoses had sucked in on themselves. Some said it’s a bad rad cap. Replaced it with a different but same spec cap.

That mean anything?


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Yeah - I think it means there's air in there somewhere...

You don't mention bleeding the air using the bleed valves? I'm not familiar with the M54 - I have an M57 - but bleeding the air is a MUST do task when refilling the coolant....