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What do you think of plug-in diesel upgrades to improve fuel economy? 15 Dec 2010 (Ask HJ)
What is your opinion of plug-in diesel upgrades kits for increased mpg? Bearing in mind the high cost of diesel, are they worthwhile? How many miles would... -
EGR valve failure 9 Nov 2010 (Ask HJ)
I have 2007 Audi A4 Quattro. The EGR valve failed after 28705 miles. This was 4 months past the 3 yr warranty. Audi claim this is fair wear and tear. I... -
What sort of fuel economy can I expect from the Toyota Aygo and iQ? 10 Oct 2010 (Ask HJ)
I have a Peugeot 206 1.4 auto that normally gives me 40mpg, plus or minus about 2mpg. I am looking for better economy and the Toyota Aygo and iQ have combined... -
I've got a 'Check' warning coming up on my Kia Rio's dash. 23 Aug 2010 (Ask HJ)
I have a 06-reg Kia Rio which is displaying a sign saying "Check" which, according to the handbook, relates to the emission control system. I have not... -
Why is my 1996 Ford Fiesta losing power and spluttering? 23 Aug 2010 (Ask HJ)
I have a 1996 1.3 HCS-engined Ford Fiesta. It starts perfectly and ticks over fine, but when under load it lacks any sort of power and splutters a lot.... -
Does my Renault Master have a glow plug fault? 12 Aug 2010 (Ask HJ)
After travelling about 300 miles, I parked my Renault Master 2.2 DCi for two days, went to start it and it won't start. I checked the fuel and it's coming... -
At what annual mileage should drivers consider diesel vehicles? 10 Aug 2010 (Ask HJ)
In last Saturday's paper, you advised someone who does 10,000 miles a year that 'You don't do enough miles for a diesel.' I'd appreciate your opinion as... -
Why is my 1999 Ford Puma juddering? 7 Aug 2010 (Ask HJ)
I have a 1999 Ford Puma 1.7 with a juddering problem and have had two diagnostic checks, but no codes show up. When I take my foot off the accelerator,... -
Should I change my Peugeot 407 SW's cam belt at 106,000km? 30 Jul 2010 (Ask HJ)
My 2005 Peugeot 407 SW has done 106,000km. I've fitted a Chip Express "chip" which works very well, making the car smoother, more powerful and with better... -
Rhayader trap 17 Jul 2010 (Ask HJ)
I own a Ford Focus 1.6 Automatic Reg 2009 on mobility. I have done approximately 2,000 miles but get only 33.3 mpg. This feels low to me. Dealer said... -
Who can value my Subaru Legacy taking its LPG conversion into account? 7 Jul 2010 (Ask HJ)
My 2007 Subaru Legacy REN automatic petrol is factory-fitted for LPG fuel. It's done 37,500 miles from new, is dealership maintained and in excellent condition.... -
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... -
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... -
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.... -
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... -
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... -
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... -
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... -
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... -
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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