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Vauxhall Astra
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Vauxhall Astra
1 September 2009, 2:05 PM
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Skinto
Joined 1 Sep 2009
1 posts
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Hello - think this is an old query, but perhaps there is an answer someone could help me out with.Got a 2001 Astra Bertone 1.8. When idle it revs up and down by itself (from 1000 to 2500 rpm). I can sometime hit the pedal sharply when it is at the base of it's "self-rev" and get it to calm down, but this is really bad, and think it may be costing fuel. Enginbe sounds pretty rough too..but I think this is due to the exhaust unit getting replaced by a cowboy! I have been looking about to see how I can dela with this. My two options to date are 1) An extensive throttle valve assembly guide (for an Omega - but may use this as a guide...this seems a bit scary though) 2) Correction of an idle air valve, as per Machoman's query on page one of this forum.....may try this. Just don't want to kill my car rather than mending it! Any advance or other ideas? Cheers
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Vauxhall Astra
9 September 2009, 9:37 AM
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Clare
Joined 17 Dec 2008
6 posts
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Hi all. I need a new cat converter for my 2001 astra 1.7. Would it be worth my while looking for a second hand one?
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Vauxhall Astra
9 September 2009, 7:56 PM
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Top Guy
Joined 13 Sep 2008
482 posts
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In short no, there are usually plenty of cats on ebay which are brand new at a decent price.You could buy a second hand one and you wont know if its any good till your next MOT and if it fails you will be thinkin should of spent the money on a new one Nige
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Vauxhall Astra
9 September 2009, 9:31 PM
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Clare
Joined 17 Dec 2008
6 posts
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Thanks Nige. Thought that myself but my dad said get a second hand one. Will trust myself in future!
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Vauxhall Astra
30 September 2009, 1:54 PM
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zeddybear
Joined 24 Oct 2008
13 posts
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Hello, I posted about my Astra merit last august. So far I've changed the idle speed control, new rotor arm, new plugs and lots of other stuff yet it still dies when I'm slowing to a junction or roundabout. It's a 1995 model and am at my wits end it's just passed it's mot but I feel like smashing it up with a sledge hammer. PLEASE HELP. It's been to a garage and they can't find anything wrong.
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Vauxhall Astra
1 October 2009, 10:06 AM
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achilles
Joined 17 Jun 2006
93 posts
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Zed, look back to early replies & you will see that many concern weak sparks. Often hard to catch in the act as the unit concerned seems to lose enthusiasm as it heats up. I assume you have the type with a module under the ignition coil on N/S wing. Change it.
A competent garage should be able to measure spark voltage for you. (Only joking). A proper auto electrician is your best bet if you really want to know. My feeling is that you just want it to work again so get down to the breakers yard. Pay about £6 for it. Achilles
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Vauxhall Astra
4 October 2009, 1:49 PM
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bilko17
Joined 4 Oct 2009
1 posts
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hi i have a mk4 1999 astra, one day i went to start it up andit wouldent fire up couldent see what would cause this so i got it towed to a mates house and left it till the weekend to look at it, weekend come andit fired stright up runs lovely i was well happy, but today iwent out and it happend again, ive checked if there is a spark and there isent what could this be please help and if ne one has had the same problem please let me nooo i really need my car for work as i start at 4,30 in the morning now i will have to bike :(
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Vauxhall Astra
4 October 2009, 9:52 PM
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achilles
Joined 17 Jun 2006
93 posts
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Dear Sgt, please see previous advice re poor sparks. Ignition module usually to blame. Easy to change. Achilles
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Vauxhall Astra
6 October 2009, 12:45 PM
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zeddybear
Joined 24 Oct 2008
13 posts
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Thank you, would that cause it to cut out when slowing down. I'm not much of a mechanic but will try what you said. The hammer is on hold till I've changed the module lol.
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Vauxhall Astra
6 October 2009, 12:59 PM
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zeddybear
Joined 24 Oct 2008
13 posts
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AARRRGGGHHHHH Just been out to go to scrap yard for module and it won't even start dead as a door nail. I paid £35.00 last week for a new battery. I'm trying to stay calm, it has a immobiliser on it which is quite funny cos nobody could get far in it. Anyway do you think that could have anything to do with it the light is flashing on the immobiliser but when I turn the key the battery is dead. I have checked connections and they are ok, it worked on saturday. Just going out to kick tyres with temper.
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Vauxhall Astra
8 October 2009, 11:34 AM
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achilles
Joined 17 Jun 2006
93 posts
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Zeddy, I feel your pain. If the immobiliser is not happy, the thing will never start. If it is an aftermarket unit, can you disconnect it? Or follow intructions to reset it? If your battery runs down so quickly, something must be taking a fair amount of current. Possibly the immobiliser. Do you have an ammeter? Pull fuses one at a time, you may see a spark from the one passing current, or put ammeter in place of fuse to identify which circuit is at fault. This could be difficult to diagnose. Is there anything connected directly to battery that doesn't go via fusesbox? If so, check that circuit too. Good luck, Achilles.
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Vauxhall Astra
8 October 2009, 3:27 PM
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hooley
Joined 8 Oct 2009
1 posts
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hi, i hav a vauxhall astra 1.6 its been parked up for 4 weeks ive started it but then it cuts out after a short while. ive also tried to jump start it and ive had it on charge all day...... could anyone tell me wat it might be please .....
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Vauxhall Astra
8 October 2009, 4:07 PM
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achilles
Joined 17 Jun 2006
93 posts
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Hooley, it may seem a stupid question but is there any fuel in the tank & is it any good? (That's 2 questions - Ed) Modern petrol does seem to 'go off' after a while. Does the engine stop due to lack of fuel or lack of sparks? Test fuel by dribbling fresh fuel into air intake - carefully!! Connect one plug lead to a spare plug to observe sparks. It will run on 3 cylinders OK at a fast tickover.
The cure may be as simple as putting sufficient fresh fuel in tank. If there is something seriously wrong, the engine would not start at all. Achilles
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Vauxhall Astra
10 October 2009, 1:32 PM
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nadine2181
Joined 10 Oct 2009
2 posts
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Hi,
I have a vauxhall astra 2.0 dti sxi 02 reg.
Ever since i have owned it..... about 4 years it has had the engine management light come on for between 20seconds and upto 2 mins and go off again. It does it either when the car is idle or just before u pull away and sometimes as you are pulling away making the car go into emergency mode everyt time the light comes on.
revs do not seem to make a difference, i have had car in garage various times and have been told glow plugs..... no change, air filter........ no change, etc etc.i was advised it may be wiring loom and to leave it untill light stays on all the time but as you can imagine it is annoying and i am looking to sell so would like to at least advise buyer of what the fault is. Any ideas????? Nadine
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Vauxhall Astra
12 October 2009, 4:20 PM
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achilles
Joined 17 Jun 2006
93 posts
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Nadine, I am not a Diesel expert but no-one else seems to be either so here goes. I asked at my local garage & they suggest the exhaust system might be partly blocked by soot, creating back-pressure & something that a sensor reads. Sorry but I didn't get it all. The cure, they say, is to drive briskly for 10+ miles until the cat gets hot enough to burn off the carbon. If you use the thing only around town, this is a common problem. That's what they say! Achilles
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Vauxhall Astra
12 October 2009, 6:50 PM
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nadine2181
Joined 10 Oct 2009
2 posts
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thanks, will give it a try ..... not sure it will work as mileage has been variable depending which job but will certainly try it. Thx :-)
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Vauxhall Astra
13 October 2009, 12:48 PM
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Domino
Joined 9 Feb 2005
2 posts
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Hi Im having a similar problem with my vauxhall, what did you do to solve the problem?
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Vauxhall Astra
18 October 2009, 8:45 PM
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drewboy
Joined 18 Oct 2009
1 posts
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hi i have a T reg astra with an ecotech engine which judders badly in 3 4 and 5 any ideas !
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Vauxhall Astra
19 October 2009, 10:31 AM
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achilles
Joined 17 Jun 2006
93 posts
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Drew, not much to go on here but at a guess one cylinder is not performing. Typically caused by failed exhaust valve. You can find out which cylinder is at fault by removing plug leads one at a time, connecting to a dummy plug so there's somewhere for the sparks to go. Start engine. When you get to the bad cylinder, it will make little difference to the running. A compression test is best to diagnose this fault if you can borrow or steal a tester. As a last resort you could even buy one. Unless you have 'caught' this fault early, the valve seat may well be damaged. Often it is quicker & easier to change the whole head assy. Achilles.
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Vauxhall Astra
28 October 2009, 4:14 PM
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Sam
Joined 28 Oct 2009
2 posts
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hi dave seems your the guy who knows all about this stuff when i push the gas pedal down the acceleration only kicks in after few seconds tried taking aparrt the exhaust but wasnt the problem tried changing the spark plugs but also no luck had a diagnostic test on it but came up clean.
please advise
and also i want to program a new key but i need the security codes and dont have them can you help
thanx alot
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