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Author Heater not getting hot quick :(
DansCorsaSXi
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Registered: 13th Jan 10
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19th Dec 10 at 12:53   View Garage View User's Profile U2U Member Reply With Quote

I know it's cold but my heater in car is really slow to get warm,does anyone else have this or do you think there's something wrong with it


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sand-eel
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19th Dec 10 at 12:53   View User's Profile U2U Member Reply With Quote

Is engine getting up to temp fast?
DansCorsaSXi
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19th Dec 10 at 12:55   View Garage View User's Profile U2U Member Reply With Quote

Irm i don't think so mate


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sand-eel
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19th Dec 10 at 12:59   View User's Profile U2U Member Reply With Quote

Could just be, are you blasting the fan whilst driving? My old B used to take about 5-6 miles to get to temp on fan no 2. Its best to put it on 1 whilst driving or nothing whilst its idling on the driveway.
sand-eel
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19th Dec 10 at 12:59   View User's Profile U2U Member Reply With Quote

As the faster the heater fan is the longer it takes as basically its cooling the engine coolant.
DansCorsaSXi
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19th Dec 10 at 13:00   View Garage View User's Profile U2U Member Reply With Quote

Yea i usually have it on 2 when it's idling, you think i should try 0 or 1 and see if it does it abit quicker?


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Generation
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19th Dec 10 at 13:07   View User's Profile U2U Member Reply With Quote

Either that or you have airlock/frozen pipes
sand-eel
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19th Dec 10 at 13:25   View User's Profile U2U Member Reply With Quote

aye put it on 1 or 0 whilst warming up, I think in these temperatures mine never got to 90 degrees on 2.
scoob
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19th Dec 10 at 13:26   View Garage View User's Profile U2U Member Reply With Quote

check your thermostat is opening fully
DansCorsaSXi
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19th Dec 10 at 13:26   View Garage View User's Profile U2U Member Reply With Quote

Is it with all Vauxhall's? My dad's Vectra is the same :/


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sand-eel
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19th Dec 10 at 13:26   View User's Profile U2U Member Reply With Quote

The engines don't generate enough heat really, my 2.5L fully warms up even in these temperatures in about 1 mile
sand-eel
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19th Dec 10 at 13:28   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by scoob
check your thermostat is opening fully


Heater is connected to the engine so the heater will always get hot water.
dannymccann
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19th Dec 10 at 14:05   View User's Profile U2U Member Reply With Quote

My Astra mk4 is fine, 3 minutes running on full blast at the screen on the drive while I clear the screen and then drive 2 or 3 miles at 30 and by then its warm enough to have on 2 on screen/feet to warm the car up - this is in -5 > -15 conditions. Would say you have a problem somewhere if its taking that long to even get warm let alone hot

edit - 2l DTi engine

[Edited on 19-12-2010 by dannymccann]
Mike
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19th Dec 10 at 14:08   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by scoob
check your thermostat is opening fully


It's more likely to be the thermostat stuck open imo, so the coolant's constantly flowing through the rad therefore can't get upto temp, mine did it a few years back but when it was like that it'd take at least 15 mins for the temp gauge to get up near 90 degrees and if you went on a motorway within a minute or 2 you'd be getting cold air again and the temp gauge would drop off the scale, so realistically it's more likely to be having the blowers on that's the problem. Just leave them off, they're only blowing cold anyway then when it's getting around 90 degrees turn them on and you should be laughing
DansCorsaSXi
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19th Dec 10 at 14:15   View Garage View User's Profile U2U Member Reply With Quote

Cheers everyone! Really big help,cheers Mike,just needed to make sure there wasn't something wrong


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Corsa_Sport21
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19th Dec 10 at 14:16   View User's Profile U2U Member Reply With Quote

Call me stupid but i dont quite get how having the heaters on 2 instead of 1 will make it take longer to heat up.The engine is still going to get hot no matter what.

My Puma takes about a mile of driving to get warm wether it be on number 1 or 2.Cant say ive noticed 1 single bit of difference no matter what number its on.
Ian
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19th Dec 10 at 15:24   View Garage View User's Profile U2U Member Reply With Quote

Because the fan blows through the heater matrix.

Hot air leaves the engine and enters the interior, where it travels through the matrix then returns to the engine. If you are blowing a fan on the matrix, the air returning the engine is cooler and needs heating up again.

It shouldn't affect it massively but it will make a difference. If you have the fan on full whack in these conditions you will notice a delay to heat up.


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pow
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19th Dec 10 at 15:31   View Garage View User's Profile U2U Member Reply With Quote

I always have the fan off until I'm registering engine temp - helps big time!
corsadonk
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19th Dec 10 at 17:35   View Garage View User's Profile U2U Member Reply With Quote

Cover half the rad with cardboard, should help it run a bit warmer
Daveskater
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19th Dec 10 at 18:52   View Garage View User's Profile U2U Member Reply With Quote

Mine's taking ages to warm up at the moment as well, glad it's not just me


Numberwang!

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richc
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19th Dec 10 at 19:38   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Ian
Because the fan blows through the heater matrix.

Hot air leaves the engine and enters the interior, where it travels through the matrix then returns to the engine. If you are blowing a fan on the matrix, the air returning the engine is cooler and needs heating up again.

It shouldn't affect it massively but it will make a difference. If you have the fan on full whack in these conditions you will notice a delay to heat up.


Ditto.

All my cars have taken a hell of a lot longer. Try driving with non on at first, and then put them on number 2, then full blast, and see what happens.
Daveskater
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19th Dec 10 at 19:41   View Garage View User's Profile U2U Member Reply With Quote

What I've been doing is leaving it off for a bit, then putting it on 1 until it starts feeling warm, then put it on recirculating mode as then it's heating warm air instead of -5C air or whatever it is outside. Sometimes have to flick it onto the windscreen for a min to de-mist but it gets a lot warmer inside so it's all good


Numberwang!

Originally posted by AlunJ
I like you Dave, you are a man of men

Originally Whatapp'd by Neo
Dave's maybe capable of a drive-by cuddle

Look at my pictures
Sam
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19th Dec 10 at 20:48   View User's Profile U2U Member Reply With Quote

I had this problem in my Mondeo, it was down to a knackered thermostat (always stayed in the 'cold' area on the gauge) and the heater control cable was broken.

Garage changed the thermostat, I changed the heater cable, now my car is roasty toasty again.
Chris
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20th Dec 10 at 00:54   View Garage View User's Profile U2U Member Reply With Quote

Other possible problem is that the snow on the panel under windscreen, where the air is taken form, so this will be super cold and zapp any heat provided by the engine.

Clear this away first to air flow, rather the sucking though frozen water.
Laney
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20th Dec 10 at 11:34   View User's Profile U2U Member Reply With Quote

This happened to me this morning too, followed by a massive overheating (on the temp gauge).

Am I right in thinking this could be a frozen waterpump issue too?

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