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loss of power

  1. Power issue

    Technical Threads
    Please can I impose on the groups knowledge. 2007 T5 191k Miles. Two issues not sure if they are linked, only one happens at a time Whilst in 2 or 3 , when you get to a certain speed/rpm there is an odd noise, but feels like the clutch slips (this was replaced recently) If this doesn’t happen...
  2. Loss of throttle/ sporadic limp mode

    Welcome to The VW T4 Forums
    Hello Everyone, I'm new to the forum, so thanks in advance for any time spent looking or replying to this. I have a 2001 2.5tdi 88bhp T4. Usually the van is kept in my barn but twice recently I've left it out overnight and both times it's rained heavily. The first time the throttle was...
  3. T4 ACV loss of power/limp mode after standing on gas pedal

    Engine & Gearbox
    Hi there, I have had a problem with my since experiencing a turbo failure some time ago (that happened in the country of Georgia). Since then the car had been driving exactly the same as when I had a faulty MAF sensor so I replaced that with a genuine new one and now the van starts fine and...
  4. T4 1.9 Petrol Loss of Power

    Engine & Gearbox
    I have a VW T4 2 litre Petrol 1991 converted to a camper. Once in a while the van loses power/acceleration. Usually this is just a very short thing which makes the van jump a bit and I either have to dip the clutch and rev the engine multiple times before power will pick back up, or re-start it...
  5. New Member - Loss of Power T4 1.9 Petrol

    Welcome to The VW T4 Forums
    Hi there, I am new to this page, and sadly have to start with a problem I am having - can anyone help?? I have a VW T4 2 liter Petrol 1991 converted to a camper. Once in a while the van loses power/acceleration. Usually this is just a very short thing which makes the van jump a bit and I...
  6. T4 loss of power

    Engine & Gearbox
    I have had my T4 2.5 TDi from new in 2001. She has done some 155,000 kms. A truly superb vehicle! End of last year a strange thing happened..... sudden loss of power, when I stopped there was a long sausage of fibre glass wrapping from inside the rear silencer box. It was blocking the...
  7. VWT4, 2.5TDI - Smokey and loss of power

    Engine & Gearbox
    Hello All, Recently bought my first T4. Had it for a few weeks and it puts out some heavy black smoke when I accelerate and change gear. After reading a fair bit on here I am hoping it;s something as simple as the Pump Timing which seems to be a common theme on here. I have managed to get...
  8. loss of acceleration/ power

    Engine & Gearbox
    hi there, i have an issue with the acceleration and/or power that is driving me up the wall, and any help would be greatly appreciated. My van is an ex aa 03 reg 2.4 tdi t4 on about 130k miles. When accelerating the engine seems to hit a brick wall at the point where the turbo should be...
  9. 2.5tdi major power drop out at high revs. Help!!!

    Engine & Gearbox
    My van is a 2.5tdi on a 53 plate. It has suddenly started dropping power attwo thousand to three thousand revs. It us getting worse and I now can't get above forty in fifth gear. Engine also sounds rough when I put the clutch in and rev it. It still starts first time and sounds fine on tickover...
  10. mysterious battery drain? help required

    Electrical
    For a couple of years now I have had a drain on my battery. I don't know where its coming from, as i can't find a drain anywhere, except for the 300milli amps of the stereo/clock which is OK. Yesterday and today, not even the door pin would rise, unyet I've had no trouble for about three...
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