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  What's the difference between belt-driven and chain-driven cam shafts? 23 Jun 2010 (Ask HJ)
  Please could you explain what differences there are between belt driven and chain driven cam shafts? Is one more fuel efficient, less noisy, more reliable...
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  How can I un-clog my Vauxhall Zafira's diesel particulate filter? 19 Jun 2010 (Ask HJ)
  My Vauxhall Zafira comes up with the warning light for the particulate filter, and a couple of times has almost ground to a halt. Will hard driving help...
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  How can I check which recalls were carried out on a Mazda 6 I want to buy? 13 Jun 2010 (Ask HJ)
  I'm in the process of buying 2005 Mazda 6 1.8 S with 37,000 miles. The car is being used for school runs, so I want to make sure it's in good working order....
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  Are petrol companies adding 10 per cent methanol to their fuels? 18 May 2010 (Ask HJ)
  Arriving in the small village of Wheaton Aston by narrowboat, I was shocked to find that the garage there had stopped selling petrol at the turn of the...
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  Non swimmer 20 Feb 2010 (Ask HJ)
  My daughter’s diesel SAAB 9-3 has had a catastrophic failure after passing through shallow water on the road. The breakdown man seemed to think that this...
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  Thirst among equals 30 Jan 2010 (Ask HJ)
  I purchased a new Golf 1.4TSI DSG [7-Spd] on 2-9-2009. It is used for long and short trips and I use Superunleaded if available. It does not live up to...
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  Gas trick influencer 4 Apr 2009 (Ask HJ)
  Many adverts for LPG converted Range Rovers claim that vehicles so converted, will be TfL congestion charge exempt, yet a conversation with someone from...
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  Vol no vo 28 Mar 2009 (Ask HJ)
  I own a year 2000 Volvo V70 Estate, and am having trouble starting. Sometimes the engine will fire and run for about two seconds and then cut out as though...
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  Locked spout 17 Jan 2009 (Ask HJ)
  I have a Vauxhall Cavalier 1.7TD. The car had a problem with the driver's window not going up and down. I repaired this, as it was the runner that had...
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  We aren't using our diesel car enough during lockdown. Can we do anything to prolong the time before problems start? 13 Apr 2021 (Ask HJ)
  We have a BMW X3 diesel, which we have had for five years. It's a 2012 model with 65,000 miles on the clock. Understandably, we have only done 3000 miles...
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  I recently bought an approved used BMW that's very faulty - what are my rights? 2 Jan 2018 (Ask HJ)
  On 1 October 2017, I purchased a BMW 5 Series (approved used from a BMW dealership. Since then the car has been in for repairs three times. It shut down...
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  Why is my Mazda 5 cutting out? 21 Feb 2015 (Ask HJ)
  My Mazda 5 1.6 diesel has started to cut out. The car does a 30-40 mile journey once a week and longer ones once a month. I also use Shell V-Power once...
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  Should we use a diesel additive? 16 Jun 2024 (Ask HJ)
  I bought VW Tiguan 2.0 TDI 2015 but we do not do a lot of miles as we used to. We hardly do 2000 miles a year and mainly short journeys. We are aware of...
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  Why am I suddenly getting poor economy from my car? 11 Apr 2023 (Ask HJ)
  I recently purchased a 2004 Mondeo 2.0 LX auto, 175000 miles, and am only getting 22-24mpg around town when I was expecting 30mpg. The owner's manual suggests...
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  Best used estate car: 300C, V70 or Legacy? 18 Aug 2021 (Ask HJ)
  Can you give me an opinion on the Chrysler 300C Touring and the Volvo V70 2.0 D SE (driveability and reliability)? I recently test drove the former (2010),...
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  Should I buy an Audi A3 diesel or hybrid? 30 Mar 2017 (Ask HJ)
  I'm looking at changing my 2013 petrol Renault Clio 0.9 TCe for a diesel as my commute to work is now 134 miles (67 miles each way). I make this commute...
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  Does the new VED tax £40,000 premiums limit include extras (delivery charge, number plates, fuel, VAT)? 18 Jan 2017 (Ask HJ)
  I am in the process of ordering a new car which is likely to be delivered in April, the manufacturer's list price with factory fitted options would be...
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  Why is my Nissan Primastar van having trouble starting? 18 Dec 2016 (Ask HJ)
  My Nissan Primastar van starts but then cuts straight back out after a few seconds. The fuel pump is working and I have had it running or starting and...
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  Questionable VW Software Fix - have you heard of this? 29 Oct 2016 (Ask HJ)
  Has anyone else experienced issues after the vw software update in their VW Passat estate? Last week I had the software fix applied to my Diesel Passat...
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  Vauxhall Corsa diesel problems 4 Jul 2016 (Ask HJ)
  I have a 2004 Vauxhall Corsa 1.3 diesel that i'm a bit worried about. The car suffers from occasional stutter on acceleration in second and third gears....