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• 306 rough idle and smoke 26 Sep 2005 (Forum)
  hi now ive finally got the 306 dt to start again it idles very rough and pushes out lots of white smoke, also when idleing the fuel primer has no pressure in it at all it's just soft and no pressure will build in it by pumping, does this indicate an air leak if so where is the likely source? i didn't replace the o ring on the fuel filter housing so im suspecting this is the fualt?
• no car week 8 Jul 2004 (Forum)
  We are as motorists taking a bashing from politicians with ever increasing fuel prices speed cameras etc. It seems to be their aim in life to get us off the roads. I suggest a no car week and the whole country uses our public transport system. I would arrive at work just in time to go home and save all that money on fuel and parking etc.
• corsa 1.2 choke 18 Oct 2002 (Forum)
  The automatic choke stays on for a long time due to no warm air entering the engine and I assume this is causing bad fuel economy.......
• Oops! Wrong fuel!!! 17 Jun 2001 (Forum)
  After eight years of running a diesel, the other night I done the inevitable and started filling up with unleaded. Fortunately I noticed almost straight...
• mondeo 1.8 lx 1995 19 Feb 2006 (Forum)
  my mondy seems to be eating fuel. any iders
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  Volvo- Hesitation on acceleration. Please help... 18 Aug 2016 (Ask HJ)
  Volvo V60 D3 Automatic 2011 Year 41,000 miles Problem: Car “falters” on acceleration when leaving a queue of traffic. This has occurred most noticeably...
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  Cuts out while driving 14 Jan 2013 (Ask HJ)
  I have a Peugeot Expert 2.0HDI the MIL light kept coming on and off. So I change the fuel filter (Siemens) and then all hell broke lose. Now my cab has...
• Vw golf gt tdi 2.0 140bhp 2008 - fuel temp sensor issue 11 Jul 2023 (Forum)
   The glow plug light came on really briefly the other day whilst driving but was only on for a matter of seconds and went back off and hasn't come back on since. So I've had it in garage today on the diagnostics and it threw a fault code out for the fuel temperature sensor. I got the new sensor straight away, took it back to garage, they replaced it, took it for a run but was still doing it. Back on diagnostics and code had gone. Got told to give it a good run but it's still doing it.
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  Why does my hybrid give better economy in the summer? 12 Apr 2023 (Ask HJ)
  My Yaris Hybrid can touch 80mpg in summer but drops down to about 60mpg in winter. Any reason for that?
• Toyota Aygo - Fuel lines make strange noise over 90 km/h 15 Jul 2021 (Forum)
  In conclusion, if your car is making strange noises only above a certain speed check the fuel lines don't touch the car body.
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  Didn't realise I put petrol in my diesel car until it started stuttering. Is it badly damaged? 26 May 2020 (Ask HJ)
  I've just put petrol into my diesel car. I didn't realise and drove it for about three mins. I only realised when it started stuttering. The car would...
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  I can't collect my new car until lockdown ends - should I ask the dealer to replace the battery? 21 Apr 2020 (Ask HJ)
  Two or three days before Covid-19 struck, I put a deposit on a three-year old Skoda Fabia Estate, which had been off the road since the end of January....
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  Why are PHEVs less efficient than normal hybrids? 16 Nov 2018 (Ask HJ)
  I have read your report about poor real life mpg for plug-in hybrids if not plugged in. Why are they less efficient than conventional hybrids if used in...
• Average miles per annum car - Why so much attention paid to fuel consumption? 7 Oct 2018 (Forum)
  I cannot understand why fuel consumption figures feature so much here, especially if retired and only driving a few thousand miles a year.  If petrol is £6 per gallon and you do 40mpg, that's 15p per mile.  But if you have a less desirable but more economical car which does 50mpg, that's 12p per mile, a saving of 3p per mile.
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  I do over 20,000 miles per year - should I buy an SUV? 31 Mar 2017 (Ask HJ)
  I'm thinking of purchasing an SUV, or similar to replace my Saab 9-3. I have narrowed it down to Kia, Honda, Ford and Nissan. I'm tempted by the Kia Niro....
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  Why is my Renault Laguna intermittently losing power? 4 Jan 2017 (Ask HJ)
  I have a petrol 2005 Renault Laguna 2.0, the engine runs like a dream but sometimes when you are driving along there will huge loss of power for a few...
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  Can petrol pumps give short measures? 19 Nov 2015 (Ask HJ)
  I filled up with Shell V power at my local filling station today. Previously I have never been able to get more than 42 litres of fuel in, today it took...
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  Petrol Honda CR-V on urban commute - worth using premium fuel? 28 Oct 2015 (Ask HJ)
  I drive a 2013 4WD Honda CR-V, with a 2.0 litre petrol engine (manual). My daily commute is 7 miles each way in urban / suburban traffic. I drive carefully...
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  Toyota Aygo sudden loss of power 29 Jul 2015 (Ask HJ)
  I have a 2006 Toyota Aygo diesel but recently a couple of times I have had a quick sudden loss of power as if something is slipping or cutting out. It...
• peugeot 306 hdi dt (99) - fuel problem, starting and running 4 Jun 2015 (Forum)
  If i disconnect the battery and leave it for a period of time say 24hrs, it seems to reset itself and run as normal and like its old self. then 30mins into the journey or the next time i start it any of the above problems might surface. To date i"ve tried changing the fuel filter, changed the lifter pump in the tank, cracked my injector pipes to see if there working, they are. checked the timing, all good,  plugged it into a computer, the reading came back that " the fuel pump relay was malfunctioning".