Just followed this video to sort a rough idle on my 100,000 mile 02 plate MK1 Ford Focus which was vibrating a lot when idle. It worked a treat so thanks for this. I must say though that you need some good cranked screwdrivers and a Torx head bit to get in to those bolts as they are in tricky positions. I replaced the Ford Jubilee clips with 50-60mm screw driven ones whilst doing the job as they are easier for me to remove without the special tool. The old ones just break off with a good twist. Loads of black soot had built up in there. Cost of job, new cranked screw driver with removable heads £10. Jubilee clips £12 bag of ten. Throttle body cleaner probably £7ish. Satisfaction £priceless. If you can borrow some tools though you'd only have the throttle body cleaner to pay for. Thanks again.

Thank you very much for the video. My Focus was struggling at idle somewhere around 650 rpm. The throttle body had a good layer of dried up gunk around the edges. I let a throttle cleaner soaked rag stay in the body for about an hour and almost all of the residue came off. Now she idles at about 850 rpm real clean and steady. 💪🏻

I would like to say Thank you very much for your help, I have a ford fiesta 2003 zetec with this same idling issue, and thanks to you I was able to fix the car yesterday, so glad I found this video, thanks again for all your help. Superstar 👍

Intelligent, well-made, informative piece of work here. Thank you!

Cheers for the video. My 05 Ghia is a bit sluggish and starting to stall out at tick over. I will give the throttle body a clean with carb cleaner and see what happens.

Well that sorted my 58000 mile 1.6 grandad focus out.Serviced main dealer all its life,lived in a heated garage!But its never had a log run and as been to the shops on cold all the time.Same symptons,checked the idle speed control valve clean as whistle.So took of the airbox pipe from the throttle body looked clean! But no on closer inspection the edge of the flap had a build up of cack.Cleaned of with blue roll and brake cleaner.Bingo bobs your tuner.Cheers for the good video very helpful

UPDATE: 2 problems on my ZX3. 1. Collapsed PCV line at idle. 2. Fuel rail pressure sensor diaphragm was leaking gas. This was flooding the car at idle. I replace the coil, plugs and wires too but that problem after the vaccuum line PCV stuff was replaced was the fuel rail pressure sensor for sure. Leaking gas into the intake manifold, flooding the car at idle when warm. But, its fixed as of now!!! No more rough idle.

My focus 1.8 tddi 2001 has 700.000km++ and still running smoothly

I have a 03 focus w/Zetec 2.0 DOHC L4 Vin 3.automatic trans.the throttle body only controls the air intake.the (tps) throttle position sensor controls the fuel/it & other sensors relay 2 the computer/controlling how much fuel 2 deliver.tho I like ur video. I like seeing all the different models/motors.

My recently bought Ford Focus has this problem but i never typed it onto the internet yet, and already KZfaq advices me this :D Like they don't need data mining anymore.. They just read your mind nowadays.

Oh and not only is the car fixed, she has never run better. 👌

Symptoms: Deceleration at a junction, into 3rd gear.... Engine cuts out - no steering - all dead. Nearly causing accident.. Restart the engine - all fine. No warning lights other than the Battery Light - so maybe it was not idling fast enough.. Anyway copied exactly what you said in the video, including using Wynnes Carb Cleaner inside and out because the intake was 'SO SO grubby and caked in black grime. Well 20 minutes later all re-set and put back together... Had to re-enter the RADIO Code so make sure you have this before you disconnect the battery.. Now it works immaculately and idling slightly faster. So I am a very very happy bunny. I could not believe how grubby the intake was. But I thoroughly recommend the process in the Video. I know there is a story that says DO NOT use the Carb Cleaner Fluid but there is no way I could have cleaned it without the using the Carb Cleaner. So using a tooth brush and the spray and now it looks like new. Thank you and your following for all the advice. It Works!

Um vídeo melhor que o outro. Amigão, tu sabe qual é a marca desse seu coxim superior do motor?

Mine had the collapsed PCV vacuum line. It throws a a P0320 code but the problem isn't the crankcase sensor at all. The elbow of the rubber line collapses while running and crank case pressure builds and the car won't idle either when put into gear. Just replace that vacuum line which is 5/8". The line may look OK when cold or when the engine is off but when there is a vacuum, it'll collapse because the elbow area under the manifold will get soft.

Great video. Probably pulls more because the butterfly moves more freely

Muito bom parabéns

its not only a common problem on this Ford engine? alll car engines has the same problem over time when carbon gets build up. And you should definitely not use carb cleaner, it will wipe off that coating right away! The coating is also made to seal the plate correctly. If you remove the coating the car will run lean at idle, and you will get weird idle issues! because it gets too much air inside with the idle air contol valve. You can clean these throttlebodys just by spraying contact cleaner inside or maf cleaner.

Wooooowwwww! You are great! I make It on my Focus! Thanks

What tools did you require to complete this job ?

I had a similar problem on a Dodge avenger 2.0ltr petrol. Got steadly worse then went into a terrible engine shaking all overI bought one of throttle things specifically for it and then had a dealer reset the fault codes and job done.

Well done bro good job 👍

id start wit cleaning your battery terminals lol

It's not particularly dirty, in fact I don't think that level of dirt would cause a significant problem. The scenario is much worse with vehicles that use the EGR system. The problem you describe is also related to the IAC valve seen just above the oil dipstick attached to the engine with 2 screws at 01:20, which appears to be in poor condition.

I resolve that problem by upgrading my throttle body in a mod gave a little bit more horsepower and resolve the same problem for pretty much the same cost that it would have been to just by another throttle body

my focus starts good high idle at first thin it comes down and off you go

hi our ford focus 2002 has started to shudder and feels like its losing power then a burst of power and off I go , do you think cleaning this part will help ?

Hello, nice vid. I have a focus 1.6(FYDA engine) with a serious vacuum in the gastank . To a point where you need effort to unscrew the gascap. You can literally hear the air being sucked in like a vacuumcleaner. this car also starts dropping rpm after like 5 minutes. Any clue? Regards

Hello! Mi ford is 1.4 16v 2000! I have a problem with low idle! But the thing is only in trafic, what do you tink?

Pipes connected to the pcv valve behind intake usually collapse if you squeeze them more so than lookin you'll feel there soft in places. bad earths can also cause the poor idle and cause the car to stall at times. The butterfly valve doesn't effect idle its the port to the side that's for the idle, there's also no need to remove the throttle body to clean it have some one hold the accelerator fully open or wedge a stick against the seat inside the car, use a soft tooth brush and carb cleaner to clean the valve, most times makes no difference its usually the pcv valve or poor earths

Having the same problem with mine. Drops to about 500 rpm and shudders slightly when the engine is warm, just after coming off the throttle ( ie, with clutch peddle down, stopping at a junction.) I'll be doing this job over the weekend and the idle control valve while I'm at it.

Pull the IAC off and blast it clean with Gumout spray.

I've tried this, and a new idle control valve and it hasn't solved the problem. No fault codes found in the ECU. I had the ECU upgrade reflash that should have been done at a ford dealer some years back and this has cured it cutting out completely BUT the idling problem still persists. I have visited many garages and all are at a loss. No air leaks. I had it fully service inc belt by a trusted mechanic. I can now drive the car, but only after the ford idle map was installed. My next line of investigation is the water temperature sensor (or cylinder head sensor, I think it's also known by) .Ps. There is no MAF sensor on the airbox on the version I have.

This happens in renault old engines also. I had same issue back in 2010

I have a lean code I can’t seem To solve I had the entire gas system change and filter still giving the lean code but I realize that when I take off a vacuum hose which is run to the electron by the power steer reservoir it don’t go a bad idle but lean code still comes up any ideas of hw to solve I hv a hatch back ztec 1.6

Is it the same problem if my rpm are going from 800 to 1300, back and forth when idle?

Hello , where are it map sensor and air intake sensor help me pls , ı dont find

I have a Ford Mondeo mk2 1.8 zetech petrol and I have a problem with Revving up the engine. Even in neural the car won’t rev over 2700 if I mash the throttle but if I just press it gently than it revs higher. Could this be the problem? I also have to mention that I get a maf sensor malfunction code and also that the air is too hot. Help?

Where can I get 1. Throttle body and 2. throttle sensor Fir ford focus 2005?

Disconnecting the the battery does not completely reset the ECU You have to connect a jumper wire from the negative cable to to the positive after isolating the negative terminal from the negative cable end. Let it sit for 10 min. This will drain the capaciters in the ECU. Then complete your relearn process.

I'm the only person in the United States with a dash clock in my MK1 focus, Did you think about buying a new throttle body sensor for the part it might save you trouble down the road.

has the problem still gone away. what happen when you turn on the ac unit while driving???

Its because the fuel pump or a fuel filter trust mee

Hi man, Looks very interesting. My 2004 Focus 1.6L has the same problem, and I want to clean the throttle body. I couldn't understand how did you disassembly the part to the left of the throttle body, because the video is edited. Could you please guide me how to do so? even better by a video/pics. I'll really appreciate it if yo do. Read more

How did you remove the clamp there is no screws

I think i figured it out, your steering wheel is on wrong side of car. LOL thanks

Hola mi amigo, disculpe mi Inglés, desconecte la válvula IAC, porque durante el encendido, hasta el número de revoluciones de 2000 y hasta 1200 rpm .... desconecte el IAC y no hay luz del motor del cheque, ¿por qué se enciende si se desconecta ? Y de esta manera, todo se normalizó, esta a 900 rpm. ¿El sistema EGR tiene nada que ver con eso?

Carb cleaner is not the same as throttle body cleaner

Mine does this too

Can i use break cleaner?

WHAT IS THE SENSOR ATTACHED TO THE THROTTLE BHODY? IS IT A MAP SENSOR?

Rob! What are you doing with my car ?? 🤣

But yes, mines doing the same thing. 2004 MK1 face-lift. 118k.

i love your focus 1.6 lx fam did you know it's born in saarloius germany.

İyi günler bilgisayar olmadan adaptasyon yapabiliyor muyuz nasıl yapılır

I have same focus 2002 even color :DDDD

It's normal mine does too

Try Italian tune up and, premium fuel, full bottle of Redex or similar with only half a tank of fuel. Or spray a load of maf or Tbody cleaner into the air intake whilst someone revs it so it doesn't cut out. Yeah it's a cowboy method but sometimes works. I fucked my Honda crv when I cleaned the IACV and T body, I put it back on incorrectly and coolant ran in to the engine. So if your not a genius or firing on all cylinders on the day you want to do it properly , don't bother.

Sounds like a swirl flap problem. Listen how loud.

Job was a gooden.

NO!!!!! You have to make sure and only ever remove the throttle body between the months of September and December! It is VITAL to observe these restrictions or the car may idle too high. (and obviously, you know about the brakes between December and March and the Rev limiter after midnight but before 7 AM....9 AM on a Sunday )

Tried that, no good mate. It still cuts out. SO.... Took my car to a mapper and he said it had never had the map update provided by ford many years ago. £100 later....this stopped it cutting out on me, BUT, the idle then went up to 3000rpm! I have changed nearly every sensor and the only one that stopped it going above 3000rpm was the idle control valve. Now it idles at 2000rpm slowly dropping to 1100rpm. It will pull the car along on it's own at 2000rpm without me using the throttle. I hate this car. Luckily someone ran into the back of it, and hopefully it'll be written off soon!!!!!

Your not suppose to clean the throttle body with brake cleaner or carb cleaner.. read the sticker on the top of the throttle body it tells you!

Fab thank you! Just cleaned mine and stopped it cutting out 😊 Combined with 2CarPros video below to remove throttle. Both have excellent points to complete the job and prevent issues. kzfaq.info/get/bejne/aJZdd9yimMzRfnU.htmlsi=gD7lRqMmD6iX9Y9I

You could of at least showed us how you took it off lol

You shouldn't use that 'carb cleaner' on the throttle body. It's made for carburetors, which are an entirely different part. My advice for anyone trying to clean that throttle body is to just wipe it gently with a wet tissue, like the ones that are safe for skin.

Havent shown the most important bit of diy 👎