L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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corsa gsi erratic idling engine is popping and bang from front wont idle at all and exhaust keeps back fireing and engine management light flickers on and off all time any help would be greatfull thanks dan
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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check wether you have a good spart to all cylinders from the coil. (advise wearing rubber gloves as it will bloody hurt otherwise
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
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i checked the plugs leads and all spark fine
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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then i would do the paper clip test.
what engine is in your gsi?
X16 or c16
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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its the non eco tech one not sure on engine code tho dont no if this helps but the car did smoke a bit wen drivein and used alot of oil every week
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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if it has a plastic inlet manifold then its a C16XE
if it used a lot of oil and was smoking then i would think head gasket. let me think did it start happening afer you went on a bit of a hard drive?
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
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ive checked the head gasket and water is clear and no gunk on cap and radiator bottle is clean did have new belt change and all tensioners aswell and was fine was jus drivein to work and car was smokein really bad and then the engine stopped started back up and was popping and bangin
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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my mate had a look thinks piston rings need doin but not sure
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
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if the smoke is black and its popping and banging I would assume its overfueling.
However if its using oil it could need the rings doing too 
Drives supercharged Tec with torque  
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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thanks for the help guys much needed and really greatfull
how will i no if the cars over fueling ?
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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look at the plugs
if they are black they are over fueling or the cars burning oil. they should be a off tan colour if the internals are working right
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
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ok thanks will have a look and let you no what i find
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline
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read off some codes of the ecu as well as that is usually a good indication if a sensor is at fault
Drives supercharged Tec with torque
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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dont i need to get a diagnostiac done to find out the codes
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
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rite i have checked the timing and the timing has jumped 3 teeth so will fix that 2 moro and also the car blows out alot of blue smoke could that be the valve stem oil seals
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
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and as timing has jumped would it of bent valves etc
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
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depends maybe maybe not.
AS for the smoking if it smokes blue under load it will probably be the rings or if it smokes coming down the revs it will be the stem seals.
Unforunatly its a common thing on the older gsi engines im having mine done next weekend............
Drives supercharged Tec with torque
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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ok so how much u think for piston rings and valve stem oil seals have looked on line but cant find any where that sell them any ideas?
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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easy way to check the ring is to take the car on a little run get it warm, drive down a hill or something and let the cars engine breaking slow you down, when you've slowed down a bit then boot it again ans see if there is a puff od blue smoke, if so the rings are gone, doing the rings you can do this on the drive as fortunately the xe engines can be almost completely stripped with the block in the car still.
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline
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quote:
Originally posted by L16 VRG
ok so how much u think for piston rings and valve stem oil seals have looked on line but cant find any where that sell them any ideas?
Set of piston rings is roughly £80 and stem seals are about £20 i believe. Labour varies greatly from place to place. Im getting mine done my someone off of here 
[Edited on 04-11-2007 by gavin18787]
Drives supercharged Tec with torque
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L16 VRG
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Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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ok thanks mate for the help
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BarnshaW
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Registered: 25th Oct 06
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isnt a cheap job mate, whole head off etc so labour may well be a killer
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L16 VRG
Member
Registered: 22nd Oct 07
Location: berkshire
User status: Offline
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barnshaw didnt no you were on here, mate its ok my bros a mechanic but couldnt get hold of him but he said he do the work for few packet of fags lol
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