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Robert
Robert, Renault Technician
Category: Renault
Satisfied Customers: 4755
Experience:  Fully qualified 19+yrs exp/self employed technician in the UK
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My clio judders on start up every morning but runs well when

This answer was rated:

my clio judders on start up every morning but runs well when warmed up,why?

Hi..there..

What engine do you have?

What year is the car?

Any management lights on when this occurs?

other than sparkplugs..anything else checked or replaced?

Customer: replied 1 year ago.
1598 petrol. 1999 reg. no management lights. nothing else checked except noticing excessive vapour (steam) from exhaust

Ok...

If its seems to run fine when warmed up..id say your best advice would be to find someone with a decent scanner with live data capability or scope to check Oxygen/Lambda sensor performance,heater side of it..sounds like to me a bad pre cat lambda sensor..but best to have them tested first ideally..I do hope this helps

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