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Model specific boards => Golf mk4 => Golf mk4 TDI => Topic started by: chester.xiii on 17 December 2012, 18:07

Title: TDI Slight Hesitation.
Post by: chester.xiii on 17 December 2012, 18:07

Hi, not been on here for quite a while but could do with a bit of knowledge from the forum experts please.
My 150 tdi has started to have a small hesitation when coming off a light throttle, if I floor it or give it a bit it's ok but in traffic when I'm just easing it on for a few mph more it has a hesitation, nothing too bad but getting on my nerves abit. I've noticed it at around 2k rpm in 3rd or 4th.  :smiley:
  Cheers chester.xiii

Title: Re: TDI Slight Hesitation.
Post by: scarr89 on 17 December 2012, 18:20

Bit of sticky VNT perhaps?

Flooring it would be asking your turbo for more boost so the vanes on the turbo would open up easier compared to feathering the throttle at low revs when not requesting much boost.

Innotec turbo cleaner could be a temporary solution.  :smiley:

Title: Re: TDI Slight Hesitation.
Post by: scarr89 on 17 December 2012, 18:21

http://www.golfgtiforum.co.uk/index.php?topic=184800.0

http://uk-mkivs.net/forums/t/353504.aspx

Some light reading  :wink:

Title: Re: TDI Slight Hesitation.
Post by: Rhyso on 17 December 2012, 20:06

Clean out the EGR valve  :wink:

The PD engines are infamous for this

Title: Re: TDI Slight Hesitation.
Post by: chester.xiii on 18 December 2012, 18:36

Ok, anybody tried  Revive Turbo cleaner. For £60 is it worth a go? Rather than taking too many things apart.

Title: Re: TDI Slight Hesitation.
Post by: Rhyso on 18 December 2012, 19:19

EGR is an hour of your time and some carb cleaner

Try doing that first........

Title: Re: TDI Slight Hesitation.
Post by: chester.xiii on 19 December 2012, 10:11

Ok, I try the EGR next week while I'm off, will update then.
  Cheers Chester.xiii

Title: Re: TDI Slight Hesitation.
Post by: mrapoc on 19 December 2012, 19:38

fixed mine by blanking off the EGR at both the actual EGR and the exhaust port at the top of the exhaust manifold/top of turbo.

Also admittedly cleaned EGR