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Author Topic: Astra G Help  (Read 3111 times)

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Jimbob

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Astra G Help
« on: 23 January 2009, 12:15:14 »
Just been looking at a 1998 Astra G, 1.6 8V

symptoms are cutting out when hot, will restart when cool.
Jumping / misfiring type feeling once warm.

No fault codes, dealer 'given up', but did replace EGR
car looks reasonably services, air filter was immaculate, oil reasonable
coolant - old blue type but ok.
Was a LOT of mayo on the filler cap, but car has only done short recently.
Car only has 40000 on the clock, original owner from new.
My engine diags (live data) all looked ok, with the exception of 2 and 4 pots showing a knock value of 2 when cool, but all 4 showing 5-7ish when warm.

There is also a bubbling / gurgling type noise from where the heater pipes come through the bulkhead type noise (when revved)

Any ideas?

Ive sent them away to get a decent tank of petrol (v-power) was down to 1/8 a tank of Sainsburys, and to go for a longish drive, with some high rev driving, and see where it goes from there.

« Last Edit: 23 January 2009, 12:15:53 by jimbob »
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mantahatch

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Re: Astra G Help
« Reply #1 on: 23 January 2009, 14:17:23 »
Mum had an astra g with similar prob on a 99 plate. turns out was the ecu and they replaced it under warranty. the first thing the mechanic looked at was ecu number then walked back in ordered new one.
It seams around 99 they had a dodgy batch, mum's car was 4 years old and out of warranty, but because it was such a low mileage vauxhall replaced it for free.
I found out after there was no trigger for the coil on 2 and 4 coming from the ecu, althought it was receiving the signal ok, sorry if I have not remembered this all correctly it was a few years back now.

HTH

Mike

Hmmm having re read your post, I think I may be barking up the wrong tree, sorry.
« Last Edit: 23 January 2009, 14:21:01 by mantahatch »
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Jimbob

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Re: Astra G Help
« Reply #2 on: 23 January 2009, 14:25:17 »
Quote
Mum had an astra g with similar prob on a 99 plate. turns out was the ecu and they replaced it under warranty. the first thing the mechanic looked at was ecu number then walked back in ordered new one.
It seams around 99 they had a dodgy batch, mum's car was 4 years old and out of warranty, but because it was such a low mileage vauxhall replaced it for free.
I found out after there was no trigger for the coil on 2 and 4 coming from the ecu, althought it was receiving the signal ok, sorry if I have not remembered this all correctly it was a few years back now.

HTH

Mike

Hmmm having re read your post, I think I may be barking up the wrong tree, sorry.


Cheers, got the TIS details for that one, looks a possible!
Edit Field remedy 1386 for reference.


FYI replacement of those was extended to 6 years
« Last Edit: 23 January 2009, 14:27:37 by jimbob »
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Dazzler

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Re: Astra G Help
« Reply #3 on: 23 January 2009, 14:52:58 »
I had a similar thing on a friends car, which turnrd out to be the headgasket.
Nice easy job on one of these.
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tmx

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Re: Astra G Help
« Reply #4 on: 23 January 2009, 16:59:09 »
they are prone to head gaskets them 8v 1.6s tried cleaning the MAF ive had to replace the MAF on the astra as it kept cutting out and occasionally the eml would light up but not always
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kris9128

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Re: Astra G Help
« Reply #5 on: 23 January 2009, 17:36:01 »
the wife has a 2000 1.8 with similar problems. just cuts out for no reason. starts up again quite easily but then cuts out again. happens quite randomly. not done it for a while now tho.
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Marks DTM Calib

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Re: Astra G Help
« Reply #6 on: 23 January 2009, 18:46:36 »
Quote
the wife has a 2000 1.8 with similar problems. just cuts out for no reason. starts up again quite easily but then cuts out again. happens quite randomly. not done it for a while now tho.


terribly sorry old boy, I am a little tired....easy one.

Clean throttle body and enlarge small breather hole......update software
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Marks DTM Calib

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Re: Astra G Help
« Reply #7 on: 23 January 2009, 18:47:15 »
Quote
Just been looking at a 1998 Astra G, 1.6 8V

symptoms are cutting out when hot, will restart when cool.
Jumping / misfiring type feeling once warm.

No fault codes, dealer 'given up', but did replace EGR
car looks reasonably services, air filter was immaculate, oil reasonable
coolant - old blue type but ok.
Was a LOT of mayo on the filler cap, but car has only done short recently.
Car only has 40000 on the clock, original owner from new.
My engine diags (live data) all looked ok, with the exception of 2 and 4 pots showing a knock value of 2 when cool, but all 4 showing 5-7ish when warm.

There is also a bubbling / gurgling type noise from where the heater pipes come through the bulkhead type noise (when revved)

Any ideas?

Ive sent them away to get a decent tank of petrol (v-power) was down to 1/8 a tank of Sainsburys, and to go for a longish drive, with some high rev driving, and see where it goes from there.


Needs live data reading and some ignition coil test
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Jimbob

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Re: Astra G Help
« Reply #8 on: 23 January 2009, 18:50:11 »
This is the older engine, not cpp by the way.
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Marks DTM Calib

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Re: Astra G Help
« Reply #9 on: 23 January 2009, 19:08:17 »
Quote
This is the older engine, not cpp by the way.


I know, it has a DIS pack....
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Jimbob

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Re: Astra G Help
« Reply #10 on: 23 January 2009, 19:16:58 »
ok, Cheers, be next week before I get the results from some decent petrol.

Hoping that helps, only obvious (to me) thing in live data was the knock values, guessing they shouldnt normally be above 0?

Is there anything but petrol that would cause that?
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kris9128

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Re: Astra G Help
« Reply #11 on: 23 January 2009, 19:45:09 »
will tech 2 work on astra g. what can it do.
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Marks DTM Calib

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Re: Astra G Help
« Reply #12 on: 23 January 2009, 19:52:47 »
Check out technical bulletin no E0001223
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Jimbob

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Re: Astra G Help
« Reply #13 on: 23 January 2009, 20:00:35 »
Quote
Check out technical bulletin no E0001223


I read over that one 1st time around, rereading, sounds a possibility!

Got a few avenues now  :D
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Andy B

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Re: Astra G Help
« Reply #14 on: 23 January 2009, 20:11:48 »
Quote
Quote
Check out technical bulletin no E0001223


I read over that one 1st time around, rereading, sounds a possibility!

Got a few avenues now  :D

When you get sorted yours out ...... I can bring one round with another 8 valves and you can try to get rid of the EML on that if you like!  ;D  ;D  ;D  ;D
« Last Edit: 23 January 2009, 20:27:30 by Andy_B »
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