vectra dti starts ones per day please help me

**bryant1066** · 20th January 2011, 00:51

I have a 04 vectra 2.0 dti car will start first thing in morning no problems atall then will not start of the rest of the day atall no matter how much you try turning it over unless you spray brake cleaner in air intake it will fire instantly but leave it over night no matter what temp it starts first time, im lost i have changed glow plugs and relays injector seal leak off pipes and joiners crank sensor battery
please help if possible ???? no codes display on computor when conected
took it to vauxhall and they said i would have to pay them 2 hrs labour (which i dont mind) but then they wouldnt guarentee they would no what fault was can any one help

**bigmac** · 20th January 2011, 01:04

Strange one this

seems you have replaced most things I would suggest, maybe you could try and start it in morning then drive it to a steep road and park it face down and leave it a few hours then try it again.
That way we can rule out injection seals, There is a ECU update fir the DTi but as yours is a 04 it may all ready have newest software on it.Might be worth cleaning EGR valve see if this helps and just by side of EGR on right you will see a small rod make sure this moves up and down freely

**bryant1066** · 20th January 2011, 20:32

will give that a go mate, can you tell me how the vacume pipes run round the engine there are 2 x by air filter & 2x by radiator & 1x from turbo 1x cam 1xair intake, as i taken engine out and not 100% sure if put back on right
regards
paul.

**bigmac** · 20th January 2011, 20:34

Not sure on that mate best to give innes a pm

**bryant1066** · 20th January 2011, 20:39

who mate

**mick.n** · 20th January 2011, 20:42

This may be of help mate. I also have a 04 reg vectra, 2 litre DTI

Red pipe = from vacuum pump to "T" piece.

Blue pipe = from "T" piece to swirl flap solenoid valve ( mounted near the radiator, front of engine bay)

Yellow pipe = from swirl flap solenoid valve to swirl flap actuating diaphragm.

Green pipe = from "T" piece to turbo wastegate solenoid valve.

Purple pipe = from turbo waste gate solenoid valve to turbo wastegate actuating diaphragm.

**bryant1066** · 20th January 2011, 20:52

thanks alot mate so i take it the blue,red and green go together on the t piece do the green end up on vacume or outlet on control by air filter mate? also the yellow i take it that goes to the air intake manifold but do it come from the vacume or outlet
once again thats loads as i am really at a lost end.

**mick.n** · 20th January 2011, 21:05

Originally Posted by bryant1066

thanks alot mate so i take it the blue,red and green go together on the t piece

<<<<Yes mate.>>>>>>

do the green end up on vacume or outlet on control by air filter mate?

<<<<The green must go to the vacuum port on the solenoid valve (This port is usually marked "vac" & has a yellow piece of plastic on it.>>>>

also the yellow i take it that goes to the air intake manifold but do it come from the vacume or outlet
once again thats loads as i am really at a lost end.

<<<<The yellow pipe must come from the outlet port.>>>>>>