VW T4 Forum - VW T5 Forum banner

power loss

  1. T4 Syncro Losing Power

    General Van Chat
    Hi All, I'm new to the Forum so hopefully i'm posting this in the right place!? I couldnt see a 'my van isnt playing and keeps losing power bit'- although i'm very tired and did a typical man look. Any way i've just bought a T4 2.5 TDI Intercooler Syncro. It's great whilst it's working but...
  2. HELP! Dez won't start

    Engine & Gearbox
    So I bought Dez a couple of weeks ago on this forum and he has worked perfectly until yesterday. I was heading out towards the M62 with my little 5 year old, got onto the motorway, and Dez started losing power. Not cutting out completely, just significant power loss to the point that I had to...
  3. T4 1.9TD no power/flat spot

    Engine & Gearbox
    Hi, wondering if anyone could diagnose or point me in the right direction on this one. I have a 2000 1.9td and the almost all the time it drives lovely but recently it seems to be having a good loss of power in 2nd, 3rd and 4th gear. There doesn't seem to be any pattern to when it happens ie...
  4. Engine power cutting in and out

    Engine & Gearbox
    Hi. A couple of weeks ago my turbo went in some heavy rain in Belgium. I got it back to the UK where the garage confirmed the turbo had gone, i'm not sure what they did but power also seemed to be up after it came out of the garage, it still had no turbo really but it would cruise at 60 fairly...
  5. Loss of Power No Turbo Whistle No Smoke

    Engine & Gearbox
    Hi guys and gals, Hoping you can help. Took the van for a spin today with its new wheels and exhaust (Cat Back Twin Duplex from Cybox) and all was going well. Van was running sweet and been on a short run earlier in the day. I gave it some beans up the slip road to join the motorway...
  6. Allard Egr Delete Fault Help Please !!

    Engine & Gearbox
    Hi all, after fitting a Allard egr delete kit on my t5 2.5 tdi 130 04 (Vacume type) she is running out of power after 3500 rpm !, I spoke with someone prom allard when I ordered the kit and he said to leave vacume pipes unplugged? So my question is should one or both these pipes be plugged up or...
  7. Limp mode!!----AGAIN

    Engine & Gearbox
    Hi folks, I have a 2005 T5 Shuttle(high mileage). Since I've had it, it's had the dreaded limp mode issue. It's been to three VW specialists so far and none of us can find why it's doing it. So far, in 8 months, it's had: Coolant temp sensor New injector & others cleaned Service Boost pressure...
  8. HELP! No power pulling away in 1st gear!!??

    Engine & Gearbox
    Hi guys, just wondered if anyone could shed any light on this please. When pulling away in first gear or when idling stationary I can put my foot to the floor and the power response is really slow and sluggish and takes about 10 seconds to build up revs! No idea what is causing this but its...
  9. Power Loss?

    Engine & Gearbox
    Hello, I'm a bit stumped here and hope someone with more experience than me can help. I recently had a 100K service and the timing belt changed on my 2001 2.5tdi T4. During the belt change the chap said he altered things a little as the marks on the pulleys didn't quite line up. The effect...
  10. Black smoke - any ideas?

    Engine & Gearbox
    Hi all, I've got a bit of a black smoke problem on my 1999 AJT 88hp 2.5tdi. Basically anything over 2.5k/3k revs and I get a lot of black smoke out the back of my van. I know there's a fair few threads on here about similar issues but in my mind I've checked most things so wanted to know if...
  11. loss of power/bogging down @2500rpm

    Engine & Gearbox
    Bit of an odd one this, and im not sure if it should be here or electrical. This morning settimg of for home after a night shift started as usuall not frozen but condensation on back wondow and mirrors so.put the heated screen on sett of and as soon as i got to 2500rpm the van just lost power...
  12. Hello from Ringwood, Hants.

    Welcome to The VW T4 Forums
    Hi all, Had a T4 for 5 years and loved it. Bought a T5 last year and absolutely adore her:) Had the windows tinted, spent a fortune on the quick release seats and recently bought a fantastic drive away awning so we can spend weekends away once the summer comes... However, having engine power...
  13. Aussie T4 owner with issues

    Welcome to The VW T4 Forums
    G'day, I have a couple of issues with my T4; It's heating up here in Australia and the aircon is on the blink. I tried regassing with my fridgey mate last summer but had no luck getting it working. When running you can here a hissing noise inside the cabin (not a gas leak). Does anyone know of...
  14. intermittent loss of power - '1996 2.4 turbo AAB Diesel engine swb

    Engine & Gearbox
    My wife & I bought a 1996 'N' Reg 2.4 Diesel turbo 'Merlin http://www.vwt4forum.co.uk/images/smilies/wizard.gif Autoholmes' camper with 45,000 on the clock, back in March of this year. After picking it up, the fuel gauge + temp gauge was very slow to respond (sometimes not at all, and the...
  15. power shortage?

    Engine & Gearbox
    hi guy's i have a T4, 52 plate, 97,000, 2.5 tdi, swb full service 2 weeks ago. the first problem is when i am driving to work one day the van storms up the hills and with no problem. the next day on the same journey it has massive problem driving up the hills like i am am driving a 1.1 car! i...
  16. Loss of Power

    Welcome to The VW T4 Forums
    Hi. I am new to the Forum. I have a T4 2.5Tdi with cruise Control. I have an intermittent fault which mostly seems to occur during wet weather. The engine starts fine but then after a few minutes of driving, as I push the cluthch in, I lose all power, the idle revs increase to app 1800 and the...
  17. HOW TO - Test G70 AIR MASS METER (aka MAF Sensor)

    Technical Articles
    The air mass meter is a critical sensor and well known for causing performance issues. But don't rush into replacing it until you do these checks. The signal from the air mass meter is required by the control unit to calculate the required injection quantity and to control the exhaust gas...
  18. Power dips at 3,000 rpm.....

    Welcome to The VW T4 Forums
    Hello there! Picked up my first T4 2.5 (AJT engine) just over a week ago, just got back from a week in Scotland in it. Not my first VW though, had a few of those, currently running a 91 Golf Mk2 GTD as well. Thought I'd join the appropriate forum, or should that be 'best forum...'? ;) I got it...
  19. Hello and Help Please

    Welcome to The VW T4 Forums
    HI folks, we thought :where better to come for help with a strange wee problem than the forum of other T4 owners and fans! Any help or advice is greatly appreciated. Our T4 TDI has twice had a mysterious loss of power. First time was six months ago, travelling along in third gear, ( windy...
  20. Power loss at power demand 2.5tdi

    Engine & Gearbox
    My T4 goes very well indeed as it comes up to the 380k mile mark, but: At 3000 rpm (in 5th) on the motorway and going up hill the power suddenly drops off and the van slows (disconcerting on overtaking). Also, I tow a horse trailer and have done for several years, again on pulling up hill (not...
Top