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Did diesel freeze cause my Volvo V50 to lose power? 5 Dec 2012 (Ask HJ)
Setting off after parking my Volvo V50 1.6D DRIVe overnight in temperatures down to -16 degrees C, the car kangaroo jumped for a couple of minutes with... -
Van starts, but wont idle - what's the fault? 15 Jan 2016 (Ask HJ)
My Ford Fiesta van starts, but then refuses to idle and dies. Sometimes it will restart - in a plume of black smoke - sometimes it won't start at all.... -
Should I have my Lexus re-chipped? 21 Oct 2013 (Ask HJ)
My Lexus LS diesel has covered 83,000 miles and is trouble free, but my only concern is lack of power and poor economy (30-35 mpg). I'm considering having... -
Should I buy or replace my S40? 12 Mar 2013 (Ask HJ)
I now do fewer than 6000 miles per year (local and annual 1000 miles overseas), mostly alone, and do not depend on the car for commuting. It has very little... -
Poor fuel economy in my 2002 Fiesta Diesel 24 Sep 2012 (Ask HJ)
I commute to London 3 times a week and it's a 220 mile round trip, 90% of my trip is on motorways and I never go above 70mph. Now I know my car isn't new... -
Norwegian would 12 Mar 2010 (Ask HJ)
I once lived in Norway and I am sure there was an additive to put in diesel to lower its freezing point. Do you know if it can be bought here? -
Is it a common problem for diesel fuel to get into the engine oil while regenerating the car? 31 Dec 2016 (Ask HJ)
My 2016 Volvo V70 with 7000 miles, three months post first annual service, put up a message saying it was due an oil change and at next start up showed... -
I filled my diesel Jaguar XF with petrol - do I need to have the whole fuel system changed for £7,000? 28 May 2011 (Ask HJ)
I filled my diesel Jaguar XF with unleaded fuel. I drove it 400 metres to my house with no problem. In the morning I had difficulty starting it. When it... -
Unwarranted behaviour 3 Apr 2010 (Ask HJ)
I have a 2005 Renault Grand Scenic 1.5 Diesel car that failed a year ago. The Renault Garage replaced the complete fuel injection system free of charge.... -
Is there a known problem with Volkswagen Passat fuel injectors? 16 Aug 2010 (Ask HJ)
Is it true that there have been a substantial number of Volkswagen Passat fuel injector failures? If so, does this apply to all Volkswagen dealers? -
4x4 or estate? 31 Jul 2012 (Ask HJ)
I currently own a Jeep 4x4 2 ltr diesel. It is reliable but expensive on fuel especially on short journeys. I travel about 30 miles per week but want to... -
I need a large car for long trips but hear diesel isn't a smart idea anymore. Can you advise? 3 Aug 2020 (Ask HJ)
I need a new car: large with big boot and good fuel economy for a long commute. Should I get a diesel, petrol, hybrid etc? I would go diesel but I hear... -
Issues with fuel sending unit 29 Jul 2014 (Ask HJ)
I have suffered two fuel sending unit failures with my 2010 Hyundai Santa Fe. On each occasion the vehicle had driven without problem. The first time it... -
Will always filling up my fuel tank only halfway mean better fuel economy? 20 Jan 2020 (Ask HJ)
I've just read an article saying that you should always fill fuel up to the top rather than filling halfway or less otherwise it could create issues in... -
Does my RAV4 really need a whole new fuel pump to replace a sensor? 4 May 2013 (Ask HJ)
My 2007 Toyota RAV4 T180 D-4D is sitting in the Toyota garage whilst they scratch their heads trying to work out why all the warning lights come on saying... -
What's the best £20k SUV for fuel economy? 17 Aug 2021 (Ask HJ)
I have a 15-plate Honda CR-V 1.6 diesel. I still want a diesel and like the elevated driving position but need something that will deliver mid 50's+ real... -
Which cheap, diesel car should my son, who lives in France, buy? 5 Dec 2012 (Ask HJ)
You've kindly (and very promptly) answered a couple of questions regarding my son in France buying a car on a limited budget of 5000 Euros. He's scrubbed... -
Buying an old diesel 3 Apr 2012 (Ask HJ)
I only have a grand to spend. Is it worth buying a diesel, eg fiesta, with 100000 on the clock and for sale, privately for £900? I want a car that is cheap... -
Buying a new/nearly new diesel car for a long commute? 27 Sep 2011 (Ask HJ)
I want to buy a more fuel efficient car, as I have a long commute to work of 350 miles per week. I am thinking of a diesel, with a reasonable engine size.... -
Why is my Chrysler Voyager having trouble starting in frosty weather? 3 Jan 2017 (Ask HJ)
My 2003 Chrysler Voyager diesel starts poorly in frosty weather. I've had it since new and its been regularly serviced. What is the issue?
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