Technical Hot Air is Rare!

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Technical Hot Air is Rare!

rebelbuttmunch99

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Jan 16, 2009
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Hi,

Ive a 98 Marea Weekend, 1.6 Peterol.

My problem is that Im freezing! :)

If Im driving along the motorway, everything is fine, engine temp is hovering a good bit below 1/2 and lovely warm air is flowing into the car. However the moment I stop, or slowdown, e.g traffic lights/roundabout the hot air vanishes to be replaced with cold air. The engine temp then climbs until it gets nearly into the red, then shoots down again and lovely warm air returns.

I also believe the fan isnt kicking in, Ive checked the fuse for the fan and it looks fine.

Any ideas appreciated!!

Thanks.
 
Hi,

Ive a 98 Marea Weekend, 1.6 Peterol.

My problem is that Im freezing! :)

If Im driving along the motorway, everything is fine, engine temp is hovering a good bit below 1/2 and lovely warm air is flowing into the car. However the moment I stop, or slowdown, e.g traffic lights/roundabout the hot air vanishes to be replaced with cold air. The engine temp then climbs until it gets nearly into the red, then shoots down again and lovely warm air returns.

I also believe the fan isnt kicking in, Ive checked the fuse for the fan and it looks fine.

Any ideas appreciated!!

Thanks.

it sounds like your thermostat is stuck.

Ry
 
Sounds like an airlock to me. Is the coolant level OK? Check with heater on full & refill & bleed.
 
i dont know the exact location on the 1.6 but i would expect to find it on the right hand side of the engine, bolted to the side of the cylinder head.

someone else may be able to clarify.

Ry

Before I start meddling with forces under the engine that I dont really understand, can the thermostat be 'sticky' as opposed to fully stuck?
Im thinking that because when the car is stationary and the engine 'hot' the temperature IMMEDIATELY drops fast when I start driving. I would be surprised if cars motion could cool it that quickly.
 
Sorry, I should have said that its a manual-type heater. Not an air conditioner.

Yes - that's what I'd assumed:). Check for coolant leaks & top up with the heater set to hot, & use the bleed screws to make sure you don't have air in the system. Quick & easy to do before you start messing with the thermostat.
 
Yes - that's what I'd assumed:). Check for coolant leaks & top up with the heater set to hot, & use the bleed screws to make sure you don't have air in the system. Quick & easy to do before you start messing with the thermostat.

You hit the nail on the head!

I opened the water tank, and the radiator bleed screw and blew into the tank :) I kept blowing until water came out from the bleed screw.

Strangely the radiator bleed screw is HIGHER than the MAX line on the tank, so I had to over-fill the tank before I was sure there was no air in the system and then siphon the coolant out until it dropped below the MAX level.

Now temperature of the engine now permanently hovers around 45% and I have loads of hot air into the car :)

Thanks a million for all the help.
 
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