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• diesel fuel pump 14 May 2003 (Forum)
  Following erratic, jerky running of my Mitsubishi Carisma Turbo-diesel (1999, 74k miles)the main dealer says the diesel pump needs replacing because one...
• Pug 306 L D Blue smoke. 9 Aug 2002 (Forum)
  T reg 1868cc Diesel 57k All of a sudden huge clouds of pale blue smoke has belched out of the exhaust whilst driving at approx 40-60mph. Also fast ticking noise from fuel pump and revs increased. This has happened twice. Recently bought car 18/5/02. Returned to garage on 1st time and mechanic stated "could be a piece of dirt in fuel pump" Feasable, but twice? Any replies most welcome.
• Fading Diesel 8 Apr 2002 (Forum)
  Is this really likely to be enough to fade it out even at 2-3000rpm or am I looking for something else as well?. And it was only in the garage for 144k cambelt and MoT (passed, no mention of a fuel leak) on Thursday. Comments? Thanks in anticipation. Simon
• Hesitant Nissan Sunny 1 Apr 2001 (Forum)
  Hello I am the lucky owner of a 1993 Nissan Sunny 1.4 LX with 60k its a good car except for a slight hesitancy when moving off - occuring at about 1500 rpm. I have replaced all the usual suspects, this car has a Cat although it is not fuel injected in the conventional sense. I am worried about the possibility of unburned fuel harming the cat. Does anyone have any ideas as to what the cause might be, I have heard that there is a similar fault in a Primeras of this age Best Regards Jamie
• budget 24 Jun 2010 (Forum)
  By how much will fuel and road tax go up by today?   I think 10%
• Does using cruise control worsen... 1 May 2007 (Forum)
  ... fuel consumption?
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  My EV is off the road and I've been given a petrol car, can I claim fuel costs? 12 Apr 2022 (Ask HJ)
  My electric vehicle has been involved in a no fault accident. I've been given a petrol equivalent but get just 30mpg. I've asked for an EV instead as I...
• Audi A6 2.7 tdi - Warranty - Petrol Contamination 24 Sep 2011 (Forum)
  At this point the car was taken to an Audi dealers who diagnosed petrol contamination in the diesel (requiring a filter and fuel change and fuel tank clean but...."This isn't under warranty as it's not a failure of the car! " It was interesting that when I tried the car out, it was extremely low on fuel and the salesman put a very small amount in whilst on the test.
• Any - Bio-diesel 3 Oct 2010 (Forum)
  He related an incident that he had recently  with his new diesel vehicle when refuelling at quote a major supermarket netwrok that sells its own brand fuel unquote.  They sell the new ultra-low-sulphur-diesel mandated by the EU for next year, including the bio-fuel proportion. His problem appeared to be that his car fuelling pipe kept blowing back and triggering the handpiece shut-off,  so he went back to the supplier and complained.
• Nissan Primera III (1999 - 2002) - 01 2.0 Fuel economy has nose dived - ideas? 18 Jan 2009 (Forum)
  Obviously sounds likely to be some kind of air leak in vacuum, egr or induction system but could this be causing the fuel consumption problem? It's due a full service of air, fuel filters, spark plugs, oil etc possibly HT leads and I will investigate the hissing noise. The distributor cap and rotor arm were replaced 6 months ago.
• FIAT Punto II (1999 - 2006) - 1.9D, the old smoker, quits in time for MOT.. 4 Jun 2008 (Forum)
  Put it in for MOT this AM and it was massively under the max smoke limit. Questioning SWMBO, she has switched garages last year, now filling up with a different fuel near her work instead of the well known (also) major fuel brand (normal derv, not extra priced) we have have used for years. That`s a real shocker as I don`t believe in any of this, or fuel additives but that`s the only variable from previous years.
• Why the huge jump in diesel performance 22 Jul 2004 (Forum)
  Mods - feel free to move to the Technical forum if you wish, but to me this was more a Discussion item. In simple terms, add some electronic gubbins, whack up the turbo boost, wind up the fuel injection pressure to some giddy value, and hey presto you have a high performance diesel that'll tow the QE2 from 30-70 in no time flat, stay there all day, and use an egg cup of fuel in the process.
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  I plan on storing my car for six months of the year - what can I do to avoid any problems? 3 Apr 2019 (Ask HJ)
  I am intending to keep my 2005 Toyota Celica in storage. Occasionally using it every summer which means six months+ without use from time to time. What...
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  I'm storing my classic car for six months, should I leave petrol in the tank? 21 Aug 2018 (Ask HJ)
  I will put my classic car into my garage with a fitted cover in October for six months. Would it be best to fill the tank up with petrol to stop the condensation...
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  Is buying a used LPG van, or new that needs converted, a good idea for fuel economy? 3 Jul 2018 (Ask HJ)
  I drive 200 miles once a week from London to Devon and need to buy a van (used or new) that's smaller than a Citroen Dispatch. I have two children so it...
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  Can I get a remap to improve the fuel economy of my Kia Cee'd? 9 May 2017 (Ask HJ)
  Based on your advice and all you've written, I bought a Kia C'eed estate auto 1.6 diesel (no DPF) with 37,000 miles on the clock from a Kia dealer this...
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  Will using premium fuel and driving gently improve the life of the EGR, DPF and injectors? 3 Apr 2017 (Ask HJ)
  The emissions fix was done on my 2010 Volkswagen Golf 1.6 TDI in January 2017 and it now drives very differently. The DSG gearbox changes up into seventh...
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  Should I get another diesel car? 10 Mar 2017 (Ask HJ)
  I drive about 25,000 miles a year on motorways and country roads for my job and need a reasonable sized vehicle to carry equipment plus a 4x4 capability,...
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  Sudden decrease in fuel consumption 9 Jul 2016 (Ask HJ)
  Back in March 2015 I asked you: "I bought a 2012 Honda Civic 1.8 EX i-VTEC in February, swapping it for my 2006 2.2i-CTDi. The overwhelming 'feature'...
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  Leaving car unused for three weeks 14 Dec 2015 (Ask HJ)
  I will be away for three weeks over Christmas and New Year and will be leaving my car unused. I do not have a closed garage and therefore, it will be parked...