Renault Kangoo 1.4 petrol running rough

[l***@googlemail.com]

I'm stumped!

This is a 1.4 litre 8 valve Kangoo. It runs like a pig, back firing, no revs and no power, runs slightly better at small throttle positions.

No faults reported on the scanner.

Coil pack replaced with a brand new (assumed OK) one. The garage is stumped. Next step is either cambelt out a few teeth or injector problems. Anything else to look at?

Any suggestions?

Cheers

Peter

[Davey]

On Tue, 24 Feb 2015 07:40:24 -0800 (PST)

Post by l***@googlemail.com
I'm stumped!
This is a 1.4 litre 8 valve Kangoo. It runs like a pig, back firing,
no revs and no power, runs slightly better at small throttle
positions.
No faults reported on the scanner.
Coil pack replaced with a brand new (assumed OK) one. The garage is
stumped. Next step is either cambelt out a few teeth or injector
problems. Anything else to look at?
Any suggestions?
Cheers
Peter

Your best bet would be to join the Renault Forums:

http://www.renaultforums.co.uk

If anyone knows of anything to do with Renault cars, it's likely to be
them. I have benefited greatly from their expertise.

[Mrcheerful]

Post by l***@googlemail.com
I'm stumped!
This is a 1.4 litre 8 valve Kangoo. It runs like a pig, back firing, no revs and no power, runs slightly better at small throttle positions.
No faults reported on the scanner.
Coil pack replaced with a brand new (assumed OK) one. The garage is stumped. Next step is either cambelt out a few teeth or injector problems. Anything else to look at?
Any suggestions?
Cheers
Peter

fuel pressure maybe, giant gaps on the plugs, blocked air intake,
cambelt timing should be checked, which is easy on one of those, using a
programmable timing light for speed or do it manually, still easy, just
slower.

["Tim" <[e-mail]>]

Post by l***@googlemail.com
I'm stumped!
This is a 1.4 litre 8 valve Kangoo. It runs like a pig, back firing, no
revs and no power, runs slightly better at small throttle positions.
No faults reported on the scanner.
Coil pack replaced with a brand new (assumed OK) one. The garage is
stumped. Next step is either cambelt out a few teeth or injector problems.
Anything else to look at?
Any suggestions?

Blocked fuel filter , ailing pump (low fuel flow) or blocked exhaust /
collapsed catalyst.

Find another garage if they cant diagnose this.

Tim.

[Weldon]

Check the plug connection to coil. Just turned the spade terminals to make a better connection. Another common fault is crankshaft position sensor. Most times its bad connection at those stupid male female plugs