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Billy
Billy, Trainer/Master tech.
Category: Renault
Satisfied Customers: 3498
Experience:  Trainer 8+ years, master tech. 10+ years, SAE member
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Renault kangoo We have an engine misfire problem that is not

Resolved Question:

We have an engine misfire problem that is not showing up on computer diagnosis, suspicious of vacuum leak. Are there any other possible faults that we should be looking for? The vehicle Is a 2005 kangoo van, thanking you for any help you may be able to give us.
Submitted: 6 years ago.
Category: Renault
Expert:  Billy replied 6 years ago.

Billy :

Hello and welcome to JA!!!

Billy :

I'm Billy and i will assist you with this.

Billy :

I have looked around, and found a TSB (technical service bulletin or known fix), that is very similar to your issue, and it would not trigger any fault codes, due to its intermittence...........

Billy :

It involves the ignition coils.

Billy :

I will post the TSB so you check it out for yourself:

Billy :

I will also include the check procedure of the suspected coils:

Billy :

click here and here for info

Billy :

PS: if you need to check for vacuum leaks, the easiest way would be to get engine idling, and then spray on the intake manifold with some starter fluid, and when you get engine speed and noise changes, you know you have found the leaky part.

Billy :

Regards,

Billy :

Billy

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