Is It My Intercooler

[Maximus]

I had the EXACT same thing happen about 6 months ago.

Was cruising along the freeway at 90kph and put my foot down in 3rd to overtake a slower car and it started doing what you are saying.

Rang a mate and he said replace the plugs. Went out and bought the NGK ones he said to get and it fixed it straight away.

He did say though if its not the plugs it was a coil.

My car had just over 90000k's on it at the time and the plugs are meant to be replaced every 100000 or so.

Give that a try I reckon as the plugs are like $18each and a short morning to replace.

[straughsberry]

The surging is more than likely torque reduction. It will happen in gears 2-4 lower in the rpm. Is it happening around 2500-4000 rpm only in gears 2-4? 18 each for Iridiums is a bit steep. And you don't need them Iridiums anyway. They are a waste of money IMHO. Go get copper v-grooves for about 4 or 5 each. They are plenty good and you can gap them without fear of ruining the tip. And yes, if you haven't tried replacing coil packs, do them at some point. I changed them and gained 20rwkw and that was fitting a 2700rpm converter at the same time. I'm using the cheap ebay units and they are working better and lasting longer than genuine the Ford units I've used in the passed.

Edited 14/05/09 02:14 PM by straughsberry

[stevet]

To answer the question that was asked before the car is an 04 and has 65Km on the clock. Replaced the old plugs with NGK Iridiums gapped at 0.8 at the start of the year. Just spoke to the tuner and he said he has turned alot of the tourque settings in the box off.

[our06t]

well that's not the best way , you don't want the settings turned off completly you'll have a dead auto in no time , that's the hard part keeping the control's on but getting them to there limit without affecting how the car runs

I think he really needs to talk to someone who knows the 4spd

[stevet]

I've almost given up hope on this damn situation. I spoke to a trans specalist and my understanding after talking to him was that the torque limiter drops power just before/between shifts not actually in gear. So that would almost rule that out?!.............

[ratter]

these things can be impossible to diagnose over the internet or the phone, but torque management can happen at any time, not just on gear changes, quite often on the BA auto it will happen at lower revs in 3rd gear as it is coming onto boost.

Your tuner needs to data log the car and find out if it a torque management issue rather than a mechanical issue

[our06t]

and the hardest part is it almost doesn't show at all on the dyno only when your on the road , I would be following Ratter's advise mate

[stevet]

Once again thanks for the advice, just wish I could have guys like ratter and the other site sponsors dealing with the car!

Edited 15/05/09 02:13 AM by stevet

[straughsberry]

I had torque reduction issues just like you describe. Mick sorted them out in a matter of minutes. Your tuner may have knowledge and be able to tune a car in general, but he may not know what/how to fix this particular problem in edit. If you've already put it to him multiple times and he's telling you he doesn't know what's happening, then find someone who knows.

From memory, there are different tables for the auto strategies in performance mode. Can someone elaborate? Mick? If your problem is only in performance mode I'd say that could be it? Tell your tuna about this.

[dvsboy]

I got a funny feeling it`s not the auto cause mine is doing it and I`ve got a 5 speed. . . . .