Car cutting out while driving

Shasamhails

Hi,i have a 2000 1.4 seat leon and for the last month or so it has been konking out while i'm driving..when i'm coming to a stop or when i actually stop...also when the car is idleing its very low and feels like it wants to cut out(it actually does sometimes)it seems to happen most when the car is up to temperature. does anybody have any idea what could be causing this problem? any help would be greatly appreciated..cheers

biko

You say it's more noticeable when car is warm? Sounds like crankshaft sensor.
Any lights on dash?

renofan

I had the exact same problem with a petrol Laguna a few years ago now. It was a faulty coil pack. I'd say you have the same issue.

Shasamhails

biko wrote: »

You say it's more noticeable when car is warm? Sounds like crankshaft sensor.
Any lights on dash?

no nothing on the dash..i've googled this problem and a few people have suggested the crankshaft sensor aswell..i just had a look at what i think is the sensor and there is black tape wrapped around the wire part

biko

A new sensor is about 50 or so. At this point it's a gamble.

livingthedream

I'd be pretty confident that your idle control valve is just sticking a little.

So before looking to replace expensive parts, buy a can of carb cleaner from your local motor factors and strip back from the air intake until you get to the idle valve (butterfly valve). You'll probably find that it has a sticky buildup on it. Clean it with carb cleaner and all should be good again..

~LTD

bbbaldy

livingthedream wrote: »

I'd be pretty confident that your idle control valve is just sticking a little.

So before looking to replace expensive parts, buy a can of carb cleaner from your local motor factors and strip back from the air intake until you get to the idle valve (butterfly valve). You'll probably find that it has a sticky buildup on it. Clean it with carb cleaner and all should be good again..

~LTD

I agree with the above post, don't replace parts until you rule out the basics first, clean the air intake, check out under that tape you noticed on the crank sensor wires, check your ignition leads, coil pack's, do you know anyone with vag com to check for codes (some misfire codes don't give engine light if they are intermittent), this could also be a fuel problem.
If you start throwing parts at this problem it could prove to be expensive.
Basics first.

Shasamhails

Thanks lads..just back from a local car dealer/mechanics and they done a diagnostic and the only problem that came up was the oxygen sensor,that was the wire with the tape on it!...i asked the guy was that the reason it was konking out and he said it "probably" was and left it at that...does that seem like the root of the problem to ye??

jca

Shasamhails wrote: »

Thanks lads..just back from a local car dealer/mechanics and they done a diagnostic and the only problem that came up was the oxygen sensor,that was the wire with the tape on it!...i asked the guy was that the reason it was konking out and he said it "probably" was and left it at that...does that seem like the root of the problem to ye??

No. Get the carb cleaner and give the throttle body and butterfly a good cleaning.