Focus nearly stalling when slowing down and dipping clutch

Toker · 10 Mar 2009 at 11:03

my old car did this, solved by cleaning the throttle body followed by an ecu reset

peter212693 · 10 Mar 2009 at 11:17

When you say the AC is on all the time I take it its not full because I can only here the compressor kick in when I press the AC button

MattTheTall77 · 10 Mar 2009 at 11:42

I had a problem with my 98 focus, kept cutting out. Couple of trips to the garage and they had no idea, thanks to ffoc.co.uk I think it turned out to be the speed sensor, never had the problem again after that.

Janesy B · 10 Mar 2009 at 11:43

Why are garages so utterly useless at diagnosing faults? Anyone I know that's been to a garage has had to go back three or four times to get a simple thing fixed.

peter212693 · 10 Mar 2009 at 11:46

MattTheTall77 said:
I had a problem with my 98 focus, kept cutting out. Couple of trips to the garage and they had no idea, thanks to ffoc.co.uk I think it turned out to be the speed sensor, never had the problem again after that.

It may be my speed sensor but I dont have the speedo cutting on which is related to this. Im on ffoc myself and they came up with simular answers

chet84 · 10 Mar 2009 at 13:17

What model year is the car?

peter212693 · 10 Mar 2009 at 13:23

Its a 03 plate MP3 basicly a 1.8 zetec

Lethagized · 15 Mar 2009 at 22:12

Could also be the throttle position sensor and EGR valve

Defcon5 · 16 Mar 2009 at 01:10

Recently had this on a 106, gave it the good news with some carb clener and its right as a bobbin now

GinG · 16 Mar 2009 at 08:15

Similar happened with my mondeo, finally it gave up and I broke down! Turned out to be the alternator packing in & the battery going flat. Was quite a scary moment as everything just died, in the end the battery was that flat the hazards wouldnt work and was stuck down a country lane at night!

Not saying it is this, but could be a possibility.

peter212693 · 16 Mar 2009 at 08:32

Ive cleaned my MAF sensor over the weekend and its not done it again. Its not perfect it does drop a little bit but not enought to stall or have the battery light come on. So fingers crossed

RichardP · 7 May 2009 at 16:24

Hi Peter, how's your focus doing now? I've got an '03, 1.8 MP3 as well with exactly the same symptoms :confused:

if it is just the MAF sensor then I'm up for trying it on mine to save the garage abusing me...! Cheers

Janesy B · 7 May 2009 at 16:26

You can change the sensor yourself, it's an easy enough job.

RichardP · 7 May 2009 at 16:49

Cool thanks Janesy. Do you know roughly how much I should expect to pay for a MAFS? I'll see if I can find it under the bonnet first...

Janesy B · 7 May 2009 at 16:50

About £30 I think, it's pretty easy to change, it's right by the airbox. I'll upload a pic when I get the chance.

RichardP · 8 May 2009 at 09:46

Found it thanks - pretty obvious really...! Might take it apart this weekend if the rain stops :rolleyes:

peter212693 · 8 May 2009 at 10:12

Hi mate. Ive changed all sorts, TPS, MAF cleaned this that and everything and its still there. Ive just given up and going to live with it a think. Just use a bit of "heel & toe". Out of interest do you have an aftermarket exhaust on yours at all?

RichardP · 8 May 2009 at 10:59

Ah poo

no factory standard exhaust on mine..

I really don't want to take it to the garage as I could put money on them charging me loads and not fixing anything... Thanks for the help though Peter - if you ever find out what it is please let me know!! Cheers

peter212693 · 8 May 2009 at 11:05

I will do mate. Am the same I dont want to give someone money to tell me nothing is wrong

I will let you know if I find anything new.

RichardP · 7 Jul 2009 at 16:42

Hi Peter,

Some good news - took my Focus to the local Ford garage and had the engine CPU reprogrammed, turns out the version of firmware which was on my car (and maybe yours too by the sounds of things) has a known bug which results in the eratic idle we've both experienced... That was nearly a month ago and it's not over-revved or stalled on me once since, touch wood/fingers crossed!!!

If you decide to get this done I really hope it helps you mate as it sounds like you've tried nearly everything else.. Let me know how you get on

Cheers, Rich