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• F reg Espace fuel pump relay location? 19 Aug 2005 (Forum)
  Had the RAC out who, although he got the car going, couldn't find the faulty relay. We are certain that the fuel pump has it's own relay somewhere...just don't know where. The Haynes manual is fairly useless as it doesn't even list it. RAC technical centre said there IS one but they could only offer 'It's near the headlight' - it wasn't.
• VW noisy fuel injector 12 Oct 2004 (Forum)
  Its loudness never fails to draw comment from passengers. The noise is coming from what I think is the fuel injector on the front top left of the engine. You can feel the tapping when you put a hand on it. I have heard that VW engineers say that this drumming noise is a "characteristic" of the engine and there's nothing that can be done about it!
• BP Ultimate Fuel 11 Mar 2004 (Forum)
  I suppose this fuel is intended to rival Shell Optimax. Filled up the other day with BP Ultimate diesel and noted that it was 6p a litre dearer than my usual Total. Only did it because we do not have the BP or Shell round our way.
• 405 - Carb or fuel injection? 9 Feb 2004 (Forum)
  Morning all I've just acquired a 93 Peugeot 405 1.6GL but have no idea whether it is fuel injected or not. I've had a quick gander under the bonnet and didn't see anything that looked like a carb (can't spell the full name!). Mind you, my technical knowledge is only slightly greater than HF's!
• Shell Give You The Fuel For Free!! 26 May 2003 (Forum)
  Just came back from a short trip to Iceland, where Shell have spent 250,000 (£ or $, not sure), installing their first real life hydrogen filling station. Suitably powered vehicles arrive next month & get the fuel free, for an unlimited trial period!It will be mainly busses & other public sevice cars/vans, initially,but still, perhaps a good idea, from a forward thinking government. Generally cost of living is double UK prices, but unleaded is about the same, with diesel just 1/2 our price!!
• Vectra Fuel Filter 12 May 2003 (Forum)
  A bit of a novice when it comes to DIY repairs! 1997 P reg Vectra 1.6 16V LS, 94000 miles, very hesitant under acceleration. Feels like a fuel flow problem, so decided to invest in a new filter. Had the car since new, but don't think the filter has ever been changed. Just one problem - don't seem to be able to find it! Does anyone know where it is located, before I go out and buy a workshop manual?
• Storing fuel injectors 7 Oct 2002 (Forum)
  I have just had a Saab performance upgrade kit fitted to my 2.0 Saab 9-5 which consists of a new ECU plus a set of different fuel injectors. I plan on keeping the old ECU and injectors in case I decide to migrate back to the original setup (e.g. on change of car). My question is, what is the best way to store the injectors to avoid any problems when they are refitted (if ever)?
• Accurate Fuel Guages 14 Oct 2001 (Forum)
  Does any modern car have a really accurate fuel guage that can tell you, say, when you have 1 litre left in your tank? My Golf(Mk4) is supposed to have 55L capacity with the low warning light coming on with 7L left. I can always put in 51-52L if I fill as soon as it comes on.
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  Should I use a petrol additive in my classic Mercedes-Benz? 5 Sep 2018 (Ask HJ)
  I have a 1966 Mercedes 230SL, which I use lead substitute whenever I fill it. Should I add a fuel system cleaner every so often and will the lead and fuel...
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  Why is the fuel distance calculation incorrect? 30 Dec 2016 (Ask HJ)
  I have a new 2016 diesel Audi A3. I have a couple of questions. 1. After I open the filling cap there is another door which needs to be pushed very hard...
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  I misfuelled my C-Class - what should I do? 4 Dec 2014 (Ask HJ)
  I filled my Mercedes-Benz C250 with petrol instead of diesel. I realised when the engine began to falter after about 25 miles and stopped the car. Mercedes-Benz...
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  Should my Ford Mondeo be returning better fuel economy than just 47mpg? 3 Apr 2011 (Ask HJ)
  I purchased a new Ford Mondeo 2.0 Duratorque TDCI (115PS) 6-speed manual in October last year. The car has now done 6,500 miles. The Ford brochure indicates...
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  No fuel like an old fuel 31 Jul 2010 (Ask HJ)
  Several weeks ago, I accidentally put 20 litres of unleaded into my 9 year old, 93,000 mile 1.9D Renault Kangoo. I immediately filled the rest of the tank...
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  What could be causing my Renault Clio's starting problem? 13 Jul 2010 (Ask HJ)
  I have a 2003 Renault Clio 1.5 DCi with 70,000 miles. When starting from cold, the engine turns and fires but does not pick up. On the third attempt the...
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  Fuel if you think it’s over 20 Feb 2010 (Ask HJ)
  I have a Sept 2006 Suzuki Grand Vitara 1.9DDIS which I bought about 18 months ago with 19k miles from a non-franchised dealer. In April of this year at...
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  What fuel should I use in my classic motorbike? 16 May 2025 (Ask HJ)
  I have a 1981 motorbike and want to get it running again. It ran on 4 star petrol and 2 stroke mix. What petrol should I use now?
• Nissan X-Trail T31 diesel 150bhp - Consistence of fuel brands. 13 Nov 2021 (Forum)
  Could not get more than 36.4 MPG and now I am down to 34.3 MPG. Question is this a common happening between East and West coast Fuel? What procedure do you follow to complain?  How can you prove that you have been sold the wrong type of fuel, when you have used it?  
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  Which estate cars offer the best fuel economy? 22 Jun 2020 (Ask HJ)
  What’s the most economical diesel, estate?
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  Why does my 1982 Mercedes-Benz E-Class struggle to start? 14 Aug 2017 (Ask HJ)
  My 1982 Mercedes-Benz E-Class (W123) auto doesn't like to start when the engine reaches normal running temperature. It has a K-Jetronic ignition system.
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  Why is my Kia Sportage diesel automatic not starting? 29 Dec 2016 (Ask HJ)
  I've got a 2008 Kia Sportage that ran out of diesel. I've changed the diesel filter and bled the fuel. Primed the pump but it's still not starting. It's...