Post Engine Rebuild Air Leak

James_Goodrick

Hi All,

Following a complete rebuild, my Astra is appearing to hunt and the idling is erratic.

The reassembly mechanic claims that the EGR valve clip was missing (GM-24430283), and I replaced it, still the same problem. I have been told by the dealer that there is an O Ring (GM-90537420).

The Emissions light is on continuously, and the Check Engine light comes on and off.

Another mechanic (who charged me AGAIN to tighten bolts already tightened) that it needs an idle speed motor and knock sensor.

Any ideas on how hard these parts are to replace, I have been quoted $1200 for the two parts (ex labour) which I know is not true!

James 🙂

guy_27

Get an obd2 scan tool on it and check what fault codes are coming up.
Don't bother with Holden for parts. Get them from the UK.
I also stock 2nd hand parts which can be sent to you over night post.

James_Goodrick

*UPDATE*
Hi Everyone,

Thank you Guy27 for your replies. I cannot seem to get my OBD11 adaptor working to get the codes.

I have had my dream of rebuiling my SRi smashed to pieces after replacing everything on the car except for the suspension. Here is what happened.

First, I bought a 2003 Holden Astra SRi 2.2 (Non-Turbo) which had a 'blown head gasket'. It has the 2.2 Z22SE engine and is manual.

It turns out that the car overheated, warped the head and top of the cylinder head. So, I sourced a re-buillt cylinder head, two blocks away sitting on a machinist's shelf, and had the whole bottom end rebuilt too (pistons, rings etc).

So, I could not find a mechanic to put it back together as it was taken apart by the dealer due to the previous owner asking for a quote, so a retired mechanic put it together for me with new VRS kit, water pump, chain etc. So, it should be running like a new car.

It has now done almost 2000kms and has bunny hopped and idled like a donkey since day one. I have changed the oil, and driven it softly during the break in. As previously posted here, I know it needs an O ring on the front of the vacuum pipe that feeds into the front of the block to stop it sucking for air.

Here are the symptoms of my engine:
Car idles erratically

O Ring missing from EGR/front vacuum hose which could fix 'hunting' proplem
Engine is noisy like it is sucking air
The Emissions light is on
The Check Engine (Spanner) light is on, then off, then on
I took the ignition cartridge out, and the fourth well is quarter full of pink coolant
The mechanic claims that coolant may be leaking from overhead hose that goes to filler bottle
Another mechanic claims idle motor and cam sensor need replacing

OK, someone want to make or break my day!!!!

Regards,

James 🙂

P/S - if the news is terminal, can a standard Z18XE engine be fitted to the SRi?

IDI_AMIN

You fit this to the front of the inlet manifold where the o-ring and egr pipe fits If you fit this it will probably fix your hunting problem It is a volkswagon part.

http://www.ebay.co.uk/itm/321085531321?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649&clk_rvr_id=524709283319&afsrc=1

You also need an obd scan tool as guy27 has mentioned this will tell you what is causing the emmisions and management light to come on
It is possible the cylinder head has cracked and maybe that is why there is coolant in the fourth spark plug hole you should investigate more to find out