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low power

  1. Smell of petrol, low performance and more engine noise

    Engine & Gearbox
    Hi My 7H T5 2.5TDI 174HK just started acting up. It misses power when accelerating, and it is more noisy when stepping on it. Also it smells of petrol when stationary at red lights. I have tried to look for obvious leaks in intake or exhaust - but can see nothing. Anybody has any good ideas...
  2. Hesitation 2000-3000rpm

    Welcome to The VW T4 Forums
    Brought a 2003 t5 1.9 85bhp and it's slow under load between 2000-3000 rev I have plug it into a diagnostic report and the one fault was a new engine speed sensor changed that still have a low power problem, next thing to do is the air mass meter but it will still have the problem I'm told by...
  3. Low Power on 2.5TDI T4

    Engine & Gearbox
    Hi, I was driving to london yesterday and halfway there I lost half my power. It is a LWB 2.5 TDI year 2000 I managed to get it to london and back slowly but I wondered if any of you could give me an insite as to what it could be. Basically it seems fine on the low end, as long as I keep it...
  4. No Power when van starts ????

    Engine & Gearbox
    '99 Caravelle 2.5 Auto I nearly killed the wife and kids yesterday after I pulled out into traffic (the traffic been a Scania !!). I put the foot down but no power at all. The van limped along for approx 200yrds and then BOOM - it took off like a rocket and the air horn and glaring lights...
  5. Whats happening to my boost?!

    Engine & Gearbox
    Hi all In need of techincal expertise! Bought a 2.5tdi AJT 88bhp T4 back in Jan, and currently doing the camper conversion thing!! I expected a settling in period of replacing all sort of worn thing as its done 215k +! But im having a power issue! Have spent hours poring over all sorts of...