engine sounds as if its struggling for air?

25th October 2011, 19:57

BTW aint a saxo ........ is a 1.3 fiesta mk4 (gfs

)
as title says really my girlfriends car is not starting to sound very good , it seems as if its struggling for air and revs up and down

?? and also when she clutches it, the revs seems to go up and down ? with a rough tick over :/ , engine sounds like its going humming up and down ? is a funny strange noise ?

i know il prob find more info on the fiestas website but cant be anything that anyone on here should know what i could try to do to resolve this ? thanks Adam

25th October 2011, 20:07

Idle control valve (it normally is on a Saxo)

Change the air filter, and probably a good service with a new set of plugs.

25th October 2011, 20:12

if its non off the above i had a problem on a mates car wasnt a fiesta though found some off th vacuum pipes were cracked and had a faulty map sensor.
or could be air flow mass meter

25th October 2011, 20:14

Blocked air filter at a guess but as said a service won`t go a miss.

25th October 2011, 22:27

hey thanks for the replys, will look at replacing the airfilter soon as, il have to check a few plugs in that case and give them a clean up, if its still faulty then maybe a diagnostics test i reckon, if they can have one of them on a fiesta (s) reg :/ , how would i go about checking the vacum pipes ?

cheers Adam

25th October 2011, 22:34

Check vacuum pipe's on inlet manifold, also clean the throttle body(throttle flap and port), carbon build up can cause the rev's to 'hunt' as you described

25th October 2011, 22:35

Quote:

Originally Posted by SnakeVTR

Check vacuum pipe's on inlet manifold, also clean the throttle body(throttle flap and port), carbon build up can cause the rev's to 'hunt' as you described

cheers mate il have alook tommorow

just a little question how will i know if its the vacuum pipes ?

25th October 2011, 22:55

Quote:

Originally Posted by adam19

cheers mate il have alook tommorow

just a little question how will i know if its the vacuum pipes ?

you'll hear leaking air sound around some of the pipes.

25th October 2011, 22:58

Quote:

Originally Posted by Heftydanielson

you'll hear leaking air sound around some of the pipes.

the gf has always said lately it sounds like its sucking in air from somewhere i just said it was the airfilter noise

(standard BTW ) mmm wonder if thats to do with it then, as its been like that from i can remember when it started playing up

, im never really in the gfs car so aint looked into it much, but when i got in it the other day it didnt sound healthy atall

cheers mate il check the hoses tomoz

25th October 2011, 23:27

you can check for a leak on the vacuum pipes by spraying carb cleaner on the joins of the pipes around the inlet, the revs will change if you find a leak or if its a bad leak may even cut out.

25th October 2011, 23:36

did you put a sock in the engine?
or sand . . .

srs.

26th October 2011, 18:41

Quote:

Originally Posted by Tontsy

did you put a sock in the engine?
or sand . . .

srs.

mm may have point sand in by mistake instead of oil

makes good sense

26th October 2011, 18:42

thanks for the comments will have to check tomorrow as didnt have time today

26th October 2011, 18:57

Take the air filter pipe off & check you haven`t got a leaf stuck in there.

31st October 2011, 15:52

hey guys ive checked the pipes and sprayed them, but nothing looks like its got a crack in the pipes or changed in the car attall the hunting is still there

, the car idles ok but soon as you touch the throttle and let off it will hunt for about 10seconds then goes back to normal ? could the be a blockage in the pipes ?

thanks Adam

31st October 2011, 15:58

Adam I used to own one of these.

Look at the engine, you'll see a little module with two bolts holding it on. Remove it and spray wd-40 or the like into the valve. This is the idle control valve and is a really common problem on these. If that doesn't work you might need a new one. (Couple of quid from a scrappy)

This will have the Endura-e engine which is a horrible tappy little fucker. You can adjust the tappets to quiet them down a bit but it's just how they are.

Btw if you whack an aftermarket air filter on these they sound the nuts haha

31st October 2011, 16:03

Quote:

Originally Posted by holdawayt

Adam I used to own one of these.

Look at the engine, you'll see a little module with two bolts holding it on. Remove it and spray wd-40 or the like into the valve. This is the idle control valve and is a really common problem on these. If that doesn't work you might need a new one. (Couple of quid from a scrappy)

This will have the Endura-e engine which is a horrible tappy little fucker. You can adjust the tappets to quiet them down a bit but it's just how they are.

Btw if you whack an aftermarket air filter on these they sound the nuts haha

Ahh sweet cheers

where abouts could i find the ICV mate on the engine?

yeah is a tapppy tapppy engine quiete loud might just have to whack an airfilter on when the misses aint looking

she wont knwo the differance in sound but i will lol

cheers buddy

31st October 2011, 16:07

Edit:

This is what you're removing and spraying (it'll be much dirtier on her car):

31st October 2011, 16:08

Erm I can't remember to be honest it's been that long since i've had one. It should be near the top and if you look for something like that ^^ sure you'll find it.

31st October 2011, 17:25

thanks mate il shall have a look tomo and give it a clean and let you know how i get on

thanks Adam

6th November 2011, 21:05

Quote:

Originally Posted by holdawayt

Edit:

This is what you're removing and spraying (it'll be much dirtier on her car):

hey mate i tried looking for the ICV on the car but couldnt find it

i found and clean a few other sensors but pretty sure it was the icv i cleaned, il upload a picture of her engine and if ya can , can you point out where about it is? thanks for your help mate Adam

6th November 2011, 21:11

sorry about the bad picture quality :/ was getting dark and also off my phone which the camera is pants lol

6th November 2011, 21:11

I think its the silver thing that you can see towards the left / centre of the pic on the front of the engine.

6th November 2011, 21:25

Quote:

Originally Posted by holdawayt

I think its the silver thing that you can see towards the left / centre of the pic on the front of the engine.

ahh i see- i did take that off and cleaned it up (didnt know if it was the icv or not lol) car seems to run abit smoother but still hunting :/ may be completly knackered? might go to the breakers and see if i can get one, but doesnt hunt as much but then it will :s, the car will tick over nicely then ya press the throttle and let go it will hunt for 10seconds then goes back to normal

bloody cars lol

6th November 2011, 21:36

Hmm seems odd, I think I replaced mine eventually which sorted It but it might be something stupid like a blocked breather. If not take it for a check up at a trusted garage. A dodgy dealer could come up with a wealth of crap to get you paying over the odds.

6th November 2011, 21:38

cheers for the reply

yeah il go breakers in the week, purchase a few sensors like the silver one you pointed out, put them on and see how it is, if still the same il just drop it off at the garage that usually does jobs on my car- did pop there the other week but he had so many cars at his workshop id be waiting for hours lol, but think thats what il have to do i reckon , thanks mate