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  Is it normal for the expansion tank to bubble in a Ford Fiesta 1.0 Ecoboost? 31 Oct 2017 (Ask HJ)
  After we test drove A Ford Fiesta 1.0, we looked under the bonnet and the expansion tank was bubbling. We were told this is the car cooling down as it...
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  Do turbocharged engines operate properly in first gear? 9 Oct 2016 (Ask HJ)
  Turbochargers on engines used not to operate in first gear or below 2000rpm. (diesel) or 3000rpm. (petrol). Is this still the case as I may in the future...
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  Why won't my Honda Civic start? 11 Sep 2016 (Ask HJ)
  I have Honda Civic 2.2 diesel (2006 model). It starts when cold but refuses to start up when warm. My local mechanic has looked at it and changed four...
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  Washer reservoir issue with Volkswagen Polo 9 Sep 2014 (Ask HJ)
  The washer fluid reservoir in my 2007 Volkswagen Polo is leaking badly. The fluid steadily drips from under the reservoir when it is filled, causing the...
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  Is it normal for a MINI to use a litre of oil every 10k miles? 5 Aug 2014 (Ask HJ)
  I have been told that it is fairly normal for a MINI Cooper S to use a litre of oil every 10,000 to 12,000 miles. Is this true as my MINI is using around...
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  Overheating 2001 Astra - what's wrong? 2 Jul 2014 (Ask HJ)
  I have a 2001 Vauxhall Astra 1.6 8v. I have had a few problems, all now sorted, but since I've had the ECU fixed I now seem to be running hot. The coolant...
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  Stuttering Astra 2.0 Turbo 18 Apr 2012 (Ask HJ)
  When reaching 3500 rpm the engine starts to stutter in my Astra 2.0 Turbo and it will not rev any further. What could be the problem?
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  How quickly will it warm up? 25 Apr 2011 (Ask HJ)
  I am considering a diesel engine for my next car, but as my journey to work is only about 5 miles at low speeds will the heater actually come through warm...
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  VW Golf Mk3 engine problem 2 Jan 2011 (Ask HJ)
  I own a 1995 Volkswagen Golf MK3 1.8 cabriolet. I have recently discovered brown foaming in the radiator expansion chamber. The temperature guage inside...
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  Why is steam coming from my 2001 Volkswagen Golf's oil filler? 5 Jun 2010 (Ask HJ)
  I have a 2001 Volkswagen Golf TDI 130 and I've noticed that there is steam coming out of the engine in the area around the oil filler. I found oil around...
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  Hot and bothered 29 May 2010 (Ask HJ)
  I have a 1996 Volkswagen Sharan 1.8 petrol and when it gets warm it starts juddering. It does not do it when cold, only when warm. Someone told us it could...
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  Flushing and filling an MX5 radiator 12 Dec 2011 (Ask HJ)
  Where is the drain plug positioned on the radiator on a 2003 MX5? I want to drain it from the engine bay as I am unable to get under the car.
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  Is the garage which sold my daughter a faulty MGTF liable to repair the engine? 24 Dec 2010 (Ask HJ)
  My daughter recently bought (mistakenly in my opinion, but she didn’t tell me until after she had bought it) a 6-year-old MG TF soft-top with 30,000 miles...
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  Is there a known fault with the engines on 1-litre Ford Fiestas? 6 Apr 2020 (Ask HJ)
  We have a 2016 1-litre Ford Fiesta. A red engine light came on, so we booked a service at Halfords. They stated that there's an internal sensor that is...
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  My nearly new car has persistent air con problems - should I reject it? 6 Jul 2017 (Ask HJ)
  I have owned a BMW M140i from new, the car is nine months old and has suffered persistent problems with the air conditioning. The local dealership has...
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  Is the head gasket leaking on my Jaguar XJS? 8 Dec 2014 (Ask HJ)
  I have a Jaguar XJS 3.6 Coupe auto. It was laid up for over a year, but fired up and ran smoothly when I bought it eight months ago. I have restored the...
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  New car needs engine rebuild - what are my options? 28 Aug 2013 (Ask HJ)
  I purchased a new Chevrolet Captiva a few months ago. Within weeks of owning the car an oil drip appeared on my driveway and the dealer told me to bring...
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  Irradiated 24 Jul 2010 (Ask HJ)
  I bought a nine-month old Vauxhall Vectra 2.2 litre automatic (mileage 10,000) in September 2004 from main Vauxhall dealer. In January of this year, still...
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  What causes engine oil emulsification? 12 May 2024 (Ask HJ)
  I changed the oil in my car, ran an engine flush, drained it and then put in new oil. However, now the oil has that awful emulsification - how did this...
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  What temperature should my MINI run at? 21 Sep 2022 (Ask HJ)
  Is 106 degrees celsius too hot for the engine of my 2007 MINI? The warning light has not come on but the bonnet gets very hot.