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[bigdavy60]

any one had a cold starting problem with a 2.2 cdti omega,once started its no problem ,but if its left for any length of time back to square one, so far ive replaced the battery ,glow plugs ,all spill pipes ,fuel filter ,injector seals ,removed and cleaned inlet manifold and throttle housing finally fitted a non return valve between the filter and injection pump ,it seems to have the symtoms of fuel run back as in it has to be wound up for a mega long time before it will start. help! ps it seems to be worse the colder it gets

[geoffr70]

Never had a diesel cra, never worked on a diesel, and no nothing specific about diesel Migs, but I saw on here someone had a similar problem, and it could be the outside air temp sensor not working, making the glow plugs not stay on as long, hence the bad starting.

[Kneepad]

That is certainly a possibilty, and worth checking. Does the display on the dash give an accurate reading of the outside temp.

[Kneepad]

Another thought. Have you ever cleaned the filter on the lift pump in the fuel tank?

[Boditza]

put your car nose down over the night and see how it starts

p.s. it is not cdti(comonrail) its just dti

[fergy]

Is the glow plug indicator on the dash lighting up when started from cold?

[tidla]

test the glow plugs are getting 12v for the appropriate time.(30 secs min cold).

[greenfingers 79]

i have a 51 plate  2.2dti and it has the same problems,
dont matter how you park it even nose down on a hill, seems like fuel is returning to tank and a right git to start, i start the car everyday even if i dont intend on using it and this seems to help a bit,
is there a how to on cleaning the filter in the tank?
im guesing the panel under the carpet in the boot gives you acces to it?
if you find the problem please post it as its been driving me mad for ages!

[Boditza]

http://www.omegaowners.com/forum/YaBB.pl?num=1251298222

you should also check the one way valve in the injection pump or mount an additional one.

p.s. have you replaced all your hosing??

[bigdavy60]

Never had a diesel cra, never worked on a diesel, and no nothing specific about diesel Migs, but I saw on here someone had a similar problem, and it could be the outside air temp sensor not working, making the glow plugs not stay on as long, hence the bad starting.

cheers mate ill look into that

[bigdavy60]

http://www.omegaowners.com/forum/YaBB.pl?num=1251298222

you should also check the one way valve in the injection pump or mount an additional one.
dont know if there is a one way valve on inj pump, but ive fitted a run back valve on the feed between the fuel filter and inj pump
p.s. have you replaced all your hosing??

yes ive replaced all spill pipes thanks

[bigdavy60]

That is certainly a possibilty, and worth checking. Does the display on the dash give an accurate reading of the outside temp.

yes it seems to do so thanks

[bigdavy60]

i have a 51 plate  2.2dti and it has the same problems,
dont matter how you park it even nose down on a hill, seems like fuel is returning to tank and a right git to start, i start the car everyday even if i dont intend on using it and this seems to help a bit,
is there a how to on cleaning the filter in the tank?
im guesing the panel under the carpet in the boot gives you acces to it?
if you find the problem please post it as its been driving me mad for ages!

will do mate i know what you are goin through cheers

[bigdavy60]

test the glow plugs are getting 12v for the appropriate time.(30 secs min cold).

will do mate, where do you get the idea of 30secs glow plug time as im pretty sure they dont stay on that long cheers

[bigdavy60]

Another thought. Have you ever cleaned the filter on the lift pump in the fuel tank?

ive been told by a vauxhall man that it does not have a lift pump in tank ? thanks ill look into it