Holden Astra CD

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Thu 12 Apr 2007 05:48
Holden Astra CD - Orry
I have a problem with a Holden Astra CD 1999. It has done 140000. It seems to run at the coldest mark when travelling at speed but when you are driving around town it seems normal. Is this a prob with themostat and if so is it dangerous to the car to run cold or do i not need to worry about it.

Also when the car runs warm the car stalls when you push the clutch in and the revs drop from say 3000?

Any suggestions. Thx
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Thu 12 Apr 2007 10:44
Holden Astra CD - Dynamic Dave
Is this a prob with themostat


Yep. Certainly sounds like it.
and if so is it dangerous to the car to run cold or do i not need to worry about it.


I wouldn't have said dangerous (well, apart from to the environment) but you'll find that your fuel economy will improve if you were to change the stat.
Also when the car runs warm the car stalls when you push the clutch in and the revs drop from say 3000?


The all too common problem of the idle speed control valve being gunged up by the sounds of it. What size engine is it?
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Fri 13 Apr 2007 01:17
Holden Astra CD - Orry
it's a 1.8 L
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Fri 13 Apr 2007 01:28
Holden Astra CD - Dynamic Dave
If it's the engine that I *think* it is, here are some instructions on how to clean the idle valve.

tinyurl.com/28cwyh
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Fri 13 Apr 2007 11:51
Holden Astra CD - Ruperts Trooper
Holden Astra CD 1999 1.8 used the X18XE1 engine - the same as Vauxhall used for the Astra '98-'00.

It doesn't have a separate Idle Control Valve, it has a stepper motor built into the throttle body, but it functions (and mis-functions) the same.
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Fri 13 Apr 2007 14:41
Holden Astra CD - Dynamic Dave
Holden Astra CD 1999 1.8 used the X18XE1 engine -


In which case:

www.astraownersclub.com/vb/showthread.php?t=96753

And click on "'How To'..... Clean a Throttle Body" in the Engine Bay/Transmission list and a pdf file will open up.
.
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Fri 13 Apr 2007 15:46
Holden Astra CD - SpamCan61 {P}
Cheers for that DD, SWMBO's 1.8 Zaf has started misbehaving in the idle dept. at 101K and I bet it's the same problem.
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