whats with the puff

**bunsen1** · 23rd March 2011, 13:12

upon start up off the car, there is no problems, after around 10-15 secs of idling it will start to go lumpy as if struggling maybe a bit like its going to cut which lasts about 5-8 secs and then out of the exhaust a little puff of bluey white smoke puffs out and lumpy idle goes?

maybe nothing maybe something and as always im sure the legends on here may be able to give me an insight

thanks in advance

**plasma** · 23rd March 2011, 14:02

Sticky valve?

**bunsen1** · 23rd March 2011, 14:05

what the egr valve?

**bunsen1** · 23rd March 2011, 14:05

is that a definate or your 2 pennys worth mate? thanks

**bunsen1** · 23rd March 2011, 19:37

Originally Posted by plasma

Sticky valve?

can any one elaborate on this for me?

cheers guys

**plasma** · 23rd March 2011, 19:41

sorry posted that while i had five minutes on the mobile between jobs... Could be bad injector? sticky valve (internal engine valve). Which would possibly explain the bad idle at the same time.. Need someone with more knowledge than moi for a definite answer though

**merikiito** · 23rd March 2011, 19:41

I would put some BG244 in the tank, works wonders as it cleans everything. If that does not work then you will need to look further

**bunsen1** · 23rd March 2011, 20:19

Originally Posted by plasma

sorry posted that while i had five minutes on the mobile between jobs... Could be bad injector? sticky valve (internal engine valve). Which would possibly explain the bad idle at the same time.. Need someone with more knowledge than moi for a definite answer though

thats ok mate i understand, thanks very much though!!