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  1. Astra J/GTC
    Hi guys, On the weekend my GTC started making a screeching noise, I took it to 3 mechanics who could not book me in anytime soon. When I remove the dipstick or oil cap there is a strong vacuum that makes it difficult to lift up (especially the oil cap). From reading up it seems it may be a...
  2. Astra J/GTC
    Hi all, wondering if anyone can help or has had a similar issue. The rear discs on my Astra GTC have failed on its MOT. Unfortunately I'm having a big problem with finding replacements that fit. The disc sizes are all correct however the mounting bolt holes are slightly off by literally mm so...
  3. Astra J/GTC
    The engine and esp light came on my GTC yesterday, and the engine was misfiring. Has anyone had this and what was the problem? I've just spoken to a mechanic and said it could be the head gasket, which is a worry! but can't get out to diagnose it until later in the week.
  4. Astra Chat
    I have a NAVI 600 in my GTC however for the last 2 years I’ve had issues where if I drove through pot holes or cracks in the road my volume would turn down, then suddenly all the controls on the navi would stop working but would turn on after a while or spamming a few buttons. Now the controls...
  5. Astra J/GTC
    Hi all, Just got my GTC 65 plate, and I'm not fully clued up on the ins and outs of the infotainment system etc, but Im hoping someone might be able to help me out. The cars got a CD600 system, and I'm just seeing if there's a way to get Android Auto on the system without chucking away the...
  6. Astra J/GTC
    Probably been pushing it for too long, but 2017 1.4t gtc has developed a whine, starting July last year at around 30k. Increasly getting louder. 41k now. Reading that the gearbox is the notorious M32 and is common issue. Generally the whine starts above 20mph and get louder with speed, no...
  7. Astra J/GTC
    Hi all My Astra GTC has a rattle/buzz coming from the upper drivers side door. I’ve had the door card off and the sound is still there, and there’s nothing loose in the door itself. After playing around I’ve come to the conclusion that it’s coming from the B pillar part of the door, if you know...
  8. Astra J/GTC
    Hi All, Tried to start the car this morning (1.4 GTC Auto 2013) and the error 'service theft deterrent system' appeared and the car wouldn't start. Tried it again and it started but the Padlock/Car icon was lit, I drove it to my place fo work 2 miles and then in the car park the engine just shut...
  9. Astra Chat
    my Astra j gtc 2015 drives fine until a service light shows on dash, then stops accelerating and loses all boost/turbo power. It’s had an actuator arm replaced as well as boost sensor, and has been serviced. Also thermostat housing replaced but can’t find a solution. Any ideas?
  10. Astra J/GTC
    I have a GTC 2.0 I’m looking to get the trip computer activated I’m from Middlesbrough I know there’s post about this already but just looking for someone to point me in the right direction to get this done thanks
  11. Astra J/GTC
    Hi everyone from Australia! Hope your all well and keeping busy with your Astra's, I know I am. I'm here looking for info on the crankcase ventilation of my GTC. I have serious a vacuum in my crankcase/head causing bad whining or squealing when the car is warm. Its definitely the vacuum...
  12. Astra J/GTC
    2017 Astra GTC - 25,000 miles Tried searching the thread but unable to find anything with similar faults. Over the last couple of days, my steering has started causing a grinding/hissing noise intermittently when turning right. It appears to be coming from the right hand side near the wheel...
  13. Astra H
    Hi, I own opel Astra GTC H 2006 with Z18XE 1.8 L (1796 cc) engine and I have an occurring problem that it consumes a lot of engine oil 1.5h for 1000km. Assumption is that Piston rings are worn off and oil leaks through them and burns. Is it worth to fix the engine or is it better to look for...
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  15. Astra J/GTC
    Hello, Unsure if something like this has been posted before due to the web browser i use. I have recently had the head skimmed on my Astra gtc 1.4 turbo. i had removed everything from the head before being skimmed but on assembly i have the valves rockets and tappets all in the correct place...
  16. Astra J/GTC
    Hi all, Got a little problem with the GTC 2014 Sport CDTI 2.0L. Recently its been making this horrible grinding noise. The noise is really loud when I turn the car on in the morning, it eases away when the car is warmed up a bit but does not disappear. It seems to be coming from under the...
  17. Astra J/GTC
    Hi everyone. I want to install a VXR style spoiler on my Astra GTC. However, the small like-triangles beside the spoiler need to be removed prior as these will be blocking the new spoiler from sitting in place. I havr attached a photo of the triangles I'm talking about. Anybody any...
  18. Astra J/GTC
    First Post! Hi everyone, I have spent well over an hour looking through all the previous threads and couldn't find anything on front shock absorbers. Took the car for an MOT earlier today, came back with a fail due to a leak in the front driver side shock absorber. The mechanic said the shocks...
  19. Astra J/GTC
    Daughter's car has the common coolant temperature fault. I think it has gone open circuit Looking at the thermostat, I am unsure whether the sensor can be changed. I would rather simply pop a new sensor in if possible. It looks like it does not screw in and I don't want to force it. Original...
  20. Astra J/GTC
    Hi all... I'm new to this so thanks for having me. I've looked everywhere and everyone's saying different bulb sizes so I thought i'd post on here and hope that someone actually 'knows' what I need. I'm looking for some HIDs 6000k upgrade for my -GTC 2015 (64 plate) Limited edition 1.4 140 bhp-...
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