Jump to content


Show
Photo
- - - - -

Mk4 Lumpy Under Acceleration


  • Please log in to reply
6 replies to this topic

#1 A2D2

A2D2

    Newbie

  • New Member
  • Pip
  • 8 posts
  • Ford Model: Fiesta Mk.4

Posted 17 June 2008 - 11:43 PM

Hey you lot, I'm new to the forums, hopefully I can provide info as well as deal out the problems :)

I purchased a '99 Mk4 Fiesta about 8 months ago and gradually the lower end of the gears, when I need to accelerate mid to hard it feels as if the engine momentarilly cuts out for a few seconds then around the torque band it sorts itself out.

replaced the spark plugs a month or two ago and the problem ironed itself out for a while, but it has returned again! I bought some Redex for injected engines thinking its maybe a problem with the injector bank?

Question is, is it my driving style? Or am I missing something important?

Any questions just fire away.

Thanks in advance, will probably edit to add things I've forgot!


Have something to contribute?

Sign in or register to start a topic...

Sign up to FOC Premium Membership To Remove These Ads

#2 Steve

Steve

    Administrator

  • Admin
  • 4,938 posts
  • Ford Model: Kugy
  • Location: Dorset
Contributor

Posted 18 June 2008 - 04:54 PM

have you checked out the HT leads?

#3 A2D2

A2D2

    Newbie

  • New Member
  • Pip
  • 8 posts
  • Ford Model: Fiesta Mk.4

Posted 18 June 2008 - 05:04 PM

HT leads arent bad, could be an idea to replace them and see if it clears up.

#4 Steve

Steve

    Administrator

  • Admin
  • 4,938 posts
  • Ford Model: Kugy
  • Location: Dorset
Contributor

Posted 18 June 2008 - 10:17 PM

thinking about it if one went then it would be rough as you would have a cylinder down... so try the distributor cap, rotar arm inside.

I am taking a guess though.

Also check the lead from the coil to the distributor.

#5 A2D2

A2D2

    Newbie

  • New Member
  • Pip
  • 8 posts
  • Ford Model: Fiesta Mk.4

Posted 18 June 2008 - 10:24 PM

Thanks for the info will 'ave a look this weekend!

#6 duncstar

duncstar

    Newbie

  • New Member
  • Pip
  • 5 posts
  • Ford Model: fiesta
  • Location:

Posted 19 June 2008 - 11:33 AM

thinking about it if one went then it would be rough as you would have a cylinder down... so try the distributor cap, rotar arm inside.

I am taking a guess though.

Also check the lead from the coil to the distributor.

If its a zetec it will have a coil pack not distributor.

#7 A2D2

A2D2

    Newbie

  • New Member
  • Pip
  • 8 posts
  • Ford Model: Fiesta Mk.4

Posted 22 June 2008 - 03:50 PM

Report: Had a quick once over of the car with my car and all was fine until we started the car up. Dad was under de bonnet and said when a gave it some throttle there was a sort of swooshin, air escaping from a pipe noise. He thinks that might be the porblem for the lack of power under acceleration.

Needs looked at!

Have something to contribute?

Sign in or register to start a topic...


Not what you're looking for?

Register now, we have a huge community of enthusiasts to answer any questions you might have



0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users