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  1. Mk2 Gearbox, Clutch & Running Gear
    I have fairly recently bought a MK2 Focus ST - stage 3 - RS bolt ons - block mod - Clutch etc. It’s been running pretty well just had her serviced. A recent problem that has come up is on startup there is a 1 second screeching sound and whilst driving this screeching/scratching sound continues...
  2. Mk2 Engine, Exhaust and Induction
    Hi Guys, just today I’ve been having an issue where my car isn’t boosting or it is boosting one minute then not the next then 10 minutes later it will boost again! Also the turbo Boost gauge needle likes to hunting and flick up and down randomly. Correct me if I’m wrong but I’m thinking boost...
  3. Mk2 Turbo & Intercooler
    Hello. So i`m having this strange boost pressure problem. The car is a `09 and only modifications are bsr remap and turbosmat recirc. I have the very common problem with 1/4 or 0.3 bar boost pressure to the dial. Sometimes when flooring it at 5th or 6th gear the pressure rises almost to normal...
  4. Mk3 Brakes, Wheels & Tyres
    Hi all, New to this forum as I'm seeking some answers/advice. I bought my 2015 ST-3 TDCI in September of this year with 24k on the clock. It had 4 near-new Goodyear Eagle F1 Asymmetric 2 tyres and around a month later I noticed a loud wobbling sound while driving. I had this issue before with...
  5. Mk2 Engine, Exhaust and Induction
    Hi guys, recently bought a mk2 Focus st 2007, its stage 3 with lots of the supporting mods...anyway I noticed my air conditioning was blowing cold air at low speeds and warm air at high speeds (with heating turned up throughout) so this prompted me to check my coolant, which was very...
  6. Mk2 Interior, Heating, Air Con, Noises & Smells
    Hi all! This is doing my nut in. Had the car since October but never noticed as aircon worked for the few minutes at a time that it was used. For the first use of the day, aircon ALWAYS works, so from cold/cool engine - it doesn't kick out freezing air but cool air which is fine by me...
  7. Mk2 Engine, Exhaust and Induction
    So i was driving my ST back home tonight when all of a sudden I heard a metallic-like clunk like something had fell/broken off. Noticed something was drastically different straight away, feeling very unstable, vibrations while accelerating and a clunking during gear changes. Pulled over and...
  8. Mk2 ECU Remapping, Software & Tuning Packages
    Hello guys, im new here, I just bought ST225 and I found a power curve from dyno. Can somebody explain me, what's wrong with it? Results are really bad I think. Car was with Stage 1 Bluefin and K&N CAIS. The curve is OK, until 4000rpm. What could be wrong? Is it just bad piece of engine with...
  9. Focus ST Mk2 Non Technical Discussion
    Right so i've recently got myself a MK2 2007 ST, quality car absolutely love it but i've got one small thing that's annoying me. Every time I go to put the car in gear it seems to clunk every time (mostly in first, second and third), it's not causing problems for my driving but its just an...
  10. Mk2 Engine, Exhaust and Induction
    Hi all, I picked up my 10 plate st3 3 weeks ago and no mucking about! I got a milltek ultimate cat back on and a stage 1 flash map. The problem Is im certain it's still boosting like a standard car, foot hard to the floor for 40 in 4 th gear and I'm only getting 1/2 of the boost gauge. Any help...
  11. Mk2 Lighting & Electrical
    Had new battery fitted and red battery light come up on dash couple days later! Had battery and alternator tested and they're both good! When I turn car on it comes on after about 20seconds, in that 20 seconds where it isn't on, front heated windows and cigarette lighter works, as soon as it...
  12. Mk2 Miscellaneous
    Hi everyone, A little assistance if anyone has an answer... I opened my boot this morning and realised that it was very heavy. I then realised that it was not holding itself up. I'm not sure how it works but imagine it's some sort of air compressor that keeps the boot open? I did think that...
  13. Mk2 Gearbox, Clutch & Running Gear
    Could you with some help, maybe someone else has experiences similar: The other day the clutch pedal was not returning to it's normal position after release, i.e. I could actually lift it back up a little bit after I took my foot off. Seemed to settle down and havdn't thought anymore of it...
  14. Mk2 Brakes, Wheels & Tyres
    Ok so I had the ST in with Arnold Clarke last week as needed new top struts, bushes and droplinks on both front sides (only 1 side was knackered causing knocking noise when going over uneven ground, speed humps etc but replaced both sides as per good practice). Came back and was fine and not...
  15. New User Meet and Greet
    Hey Guys, Got my Black Focus ST-2 two weeks ago and so far loving every second of it, and stumbled across this forum and joined immediately:) BUT I have just noticed what appears to be a pretty major problem concerning a leak along the passenger side of the car. Having only had the car for a...
  16. Mk2 Engine, Exhaust and Induction
    I have noticed that recently my 06 Focus-ST is making a strange noise when lifting off the throttle in second and third gear. The problem is best described as a fast ticking sound that occurs when I accelerate moderately hard (with turbo boosting) in second gear then lift off the gas, as you...
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