heater..........or not as the case is

[no41sprint]

need some advice please.my sprint is overheating for the first time,it goes to "h" on the temp gauge and then drops to 3/4..but the heater blows cold air out.when the heater blew hot air out before, the temp gauge stayed at half way.i cant understand that if the engine is so hot, why the heater is cold.<br>
any ideas pls?

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[bodgerben]

Check your top and bottom rad hoses - and the rad itself. If they are all cold you have a dead water pump.<br>
<br>


<p>Ben<br>
<br>
<!--EZCODE LINK START--><a href="http://www.dollysprint.com">www.dollysprint.com</a><!--EZCODE LINK END--></p><i></i>

[KLJ895W]

And the more obvious check of the water level if you haven't already.<br>
<br>
David

<p>1980 Sprint<br>
1980 1850HL with Sprint gearbox, propshaft and axle<br>
1972 VW Camper Van</p><i></i>

[davepoth]

Then it might be worth doing a compression test, as your head gasket might have blown. The other things are much more likely, though.

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[Jon Tilson]

may not be opening properly.<br>
Water pump impellor loose on spindle...rare fault but possible.<br>
<br>
Air lock?<br>
<br>
The heater hoses may be kinked or just blocked by years of limescale.<br>
<br>
Jonners

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[no41sprint]

MANY THANKS TO ALL OF YOU.DRAINED IT AND REFILLED THE SYSTEM ,NOW WORKS ..........TRIED IT OUT,HEATER WORKS NOW..........BUT THEN RAN OUT OF PETROL .TOO BUSY LOOKING AT THE TEMP GAUGE.DOH !<br>


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[Carsreunited]

I had similar symptoms on the stag which turned out to be the thermostat sticking closed. Sometimes it would open and the temp would dive back down, at others it would just boil! I take it you have replaced it during your drain down and refill? For the sake of £3 its worth it.

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