Hi all, my MK6 Fiesta is hard to start sometimes, but sometimes it's not.

90% of times when you turn the key you need to add throttle for it to fire up whilst turning over. It will fire up eventually if you don't add throttle but it's easier to just add throttle.

But everyone now and again, it'll start straight back up after with no throttle, just like a normal car.

Also, when it's been running it'll always start straight back up with no throttle.

My only thought is something along the lines of fuel pressure/dirty fuel filter. It must be fuel related if I'm having to add throttle, I'd have thought?

It's getting quite annoying, I was wondering if anybody knew what it could be as there are a few petrol heads on here, thanks

 

the coil pack went on mine graham after about 25k miles, how may has your car done?

This is quite common with mk6 fiestas

 

There is no misfiring etc though? And why would me adding throttle mean it starts?

Also anothing thing I just remembered, every now and again it'll just spin the starter motor and I have to turn the key off and on again?

Oh, and it's done 88k miles, I drive alot lol

 

Bump

 

check that they is no water in the plug chambers from the washer jet seals if they is seal the
jets into the bonnet. they is a pcm recal that sorts a lot of probs on them

 

I'll give it a check mate, although had new plugs recently and made no difference

Any other ideas just fire away and I'll have a look.

I was going to change fuel filter as it must be pretty dirty by now

 

they just get damp after it rains u got to seal the washers jets in the bonnet
u can test it by pour water over the jets then open the bonnet and see if there is
water on the air box runing down to the plugs near the oil filer cap

try it mate

 

I'll give it a go and let you know, thanks

 

OK well there's no actual water, although there is evidence of there once being water in there. I didn't have the right tool to get the plugs out as my plug tool is for larger plugs so I'll have to buy a deep socket for that.

Took some pics to show you:









Also, looked at the air filter. I was surprised how dirty this was, I changed it 8000miles ago?



And what's this filter? It's all oily.

 

has it ever had it's leads changed? the air filter is dirty for 8k, who changed the last one? has it ever had a coilpack change tho? we have done 61k and it failed on friday. cost 37quid from a motor factors.

 

yes mate that from the right hand washer jet pop the washer jet out and put some
sealer beween the bonnet and jet i use sump sealer push the jet back in and clean
the excess off, change the plugs, that your bad starting because the rain water
leaks in overnight and when u go to start it the plugs are wet but there dry out with the heat, did u poor water over the bonnet and washer jet and see where it ended up mate

 

No mate, leads and coilpack are original as far as I know!
Can I ask of the mechanical reason of what the coilpack could be the fault? Be interesting to know.
I thought if the coilpack was at fault it would misfire or something? I know it's not expensive, but it's Ł37 that might not 100% solve the problem.
I have heard of the faults on the Fiesta coilpacks though.

Air filter was changed by my local garage guy. I usually do services myself but he did the whole service cheaper than I could get the parts to do it myself so made sense. Should I buy a new filter? I attempted cleaning it but it didn't really do anything.

Thanks mate, I'll give sealing the washer jet a go.
But you saying about the bad starting due to water, it has trouble starting in all weathers. In fact sometimes in the rain it still starts first time, that's why I find it so confusing!
I'll give the pouring water over the jets a go, probably just re-seal them anyway to be safe.

Thanks for helpful replies, much more helpful than I've had previously on other forums.

 

it daft mate it needs the right amount of water in the chambers to get up the leads seals
and take the spark away from the plugs.
dont put a coil pack on and that filter more than 8000k old

 

That's what I thought. I'll replace the filter.

Why do you say not to get a new coilpack?

 

my gf's fiesta is the same, sometimes wont start unless you press the accelerator. Seems pretty common, a fiesta i had as a courtesy car a couple of months back did exactly the same. Really wouldn't worry about it!

As said above, I wouldn't bother changing the coilpack unless its misfiring when its running.

Rich

 

It's nice to know I'm not the only one with the problem. You'd think if there are a few around with the same problem that there must be a solution though?

It's just annoying sitting there cranking the engine a couple of times, when my mate in his J plate 106 starts instantly

 

thats modern cars for you mate, load of shite!!!

 

I'm feeling that

My Corsa started faultlessly, and that was 13 years old!

 

Hi I know this is a few years old but did you sort the issue if so how? I've just got a Mk6 fiesta 04 plate and I'm having the exact same issue the key turns over starts and just cuts out I have to press my accelerator for it to start and run it'll run fine all day come to it the next and I'll have the starting issue again. Any help or advice is appreciated

 

Alternatively - a problem with the wiring, but it is better to look at the service station. Ignition coils can also be the reason. oil and antifreeze have nothing to do with it. I take coils for myself here best coils for 5.3 vortec of very good quality from the guys. Also, a friend took a fuel filter from them. But I think the problem is most likely in the candles.