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  Vauxhall Vectra heater blowing out cold air 13 Jan 2013 (Ask HJ)
  The heater on my X-Reg Vauxhall Vectra blows out cold air, I have changed the thermostat and bled and flushed the coolant system.
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  Ford Puma heater problem 13 Aug 2015 (Ask HJ)
  I've replaced the HCV on my puma as it was only blowing out hot air. It worked fine once I'd finished (ran for around 5-10 mins, aircon working fine too)....
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  Temperature guage shows over-heating while driving up long inclines (coolant at minimum level - not leaking) 13 Jan 2011 (Ask HJ)
  I have noticed that when driving up long inclines, the temperature (according to the guage) starts to creep up rapidly from 90 degrees towards 130. It...
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  Head gasket on a Fiat Punto - has it gone? 29 Dec 2011 (Ask HJ)
  How would I know if the headgasket on 02-plate Fiat Punto 1.2-litre 8 valve has gone?
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  Can a car fail its MOT for low engine oil? 12 Feb 2021 (Ask HJ)
  My son's car recently failed an MOT because the engine coolant was low and engine oil was low. I know this is part of good car checks, but since when has...
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  Freelander leaking coolant 21 Mar 2012 (Ask HJ)
  I am losing coolant fluid, but have kept it topped up and not overheated. Land Rover have had the vehicle for investigation and perfomed two compression...
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  Volkswagen Passat CC V6 coolant pump failure 11 Sep 2014 (Ask HJ)
  I have a 2011 Volkswagen Passat CC 3.6 V6 and the V55 additional coolant pump is not running (aux pump) which should run when the engine is switched off...
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  What could be causing the coolant problems in my Renault Clio 1.2? 22 Mar 2017 (Ask HJ)
  I'm having some issues with my petrol Renault Clio Rush 1.2 8V. I had the water coolant tank and stop light show on my dashboard because the engine was...
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  When should you change the coolant in an almost 30 year old car? 28 Mar 2017 (Ask HJ)
  I have a 1990 Volkswagen Polo Estate that had one little old lady owner from new and has done 51000 miles. It has been serviced annually by the same local...
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  Engine coolant in with spark plugs - what could it be? 11 Jun 2013 (Ask HJ)
  I've got a 2005 Ford Focus. A few weeks ago it started juddering and the engine light was flicking intermittently. My mechanic found lots of brown, horrid...
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  MG cooling issues 7 Sep 2012 (Ask HJ)
  Could you please tell me why the water keeps boiling in my MGZR 160? It doesn't do this when driveing only when stationary
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  Where's my Vauxhall Astra's temperature gauge? 2 Aug 2010 (Ask HJ)
  I have a 55-reg Vauxhall Astra Life diesel 1.7 CDTi. Where is the water temperature gauge?
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  Our Ford Focus is leaking coolant - will Ford help pay for repairs? 18 Aug 2017 (Ask HJ)
  Our four year old Ford Focus 1.0-litre Ecoboost, with 25,000 miles, went in for its annual service and MoT today (main Ford dealer). When we went to collect...
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  Vauxhall Astra coolant leak 29 Aug 2014 (Ask HJ)
  I've recently discovered that the coolant fluid leaks out somewhere from my Vauxhall Astra. The coolant level drops quite quickly in the tank (about 1...
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  Why does my Ford Fiesta keep overheating? 15 Sep 2017 (Ask HJ)
  Why does my Ford Fiesta keep overheating?
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  EGR valve failure - what damage has this caused? 12 May 2015 (Ask HJ)
  The ERG valve has failed on our 12 month old Range Rover Evoque. Coolant has entered the engine, what possible damage could have been done?
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  Intermittent cooling light on Golf 27 Sep 2012 (Ask HJ)
  My engine coolant light has been coming on. It does not come on every time I start my car it only does it when I use my car first thing in the morning...
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  Air-con blowing hot in a 2000 Focus 5 Aug 2012 (Ask HJ)
  My Ford Focus 2000 the AC doesn't blow cold air it blows hot. It has been recharged and it still doesn't work - what will it cost to replace it?
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  Drinking drive 22 May 2010 (Ask HJ)
  I have a Rover 25 and it drinks coolant. Not loads but I’ve got to top up every 3 days or so. Is it more likely the inlet manifold gasket or the head gasket?
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  Let this be a warming 28 Feb 2009 (Ask HJ)
  My BMW 3-Series is not heating up. Would you have any idea what the problem is?