Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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car barely idles, it sounds like its running on three silenders whenever i go to accelrate hard it just bogs down..
 
And there is a slight hissing noise coming from the engine ...
Any ideas..
[Edited on 21-01-2006 by Rob B]
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Basscrazy
Member
Registered: 16th Sep 05
Location: If im on here then clearly in front of the pc
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mine was like that kind of when head gasket went
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ash_corsa
Member
Registered: 15th Apr 04
Location: Shrewsbury
User status: Offline
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sounds like head gasket, check ur coolant and oil for obvious signs of a fcuked gasket
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Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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Checked the Oil filler cap, no Mayo etc seems fine, looked around the head , no sign of water or oil..
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tom_simes
Show Staff
Organiser: South Wales
Premium Member
Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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spray carb cleaner around the engine bay while the engine is running. Spray it in small bursts in different places, and when the hissing stops, you know it is an air leak somewhere. Then just follow this to find yuor problem.
If it doesn't stop hissing at all while your spraying, I'm afraid its probably the above problem.
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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timing could be out, faulty DIS pack, air leak, ........
could be lots of things Rob. start by checking the timing marks are all lined up, then find out which cylinder it isnt running on by pulling out a lead at a time. you will hear which one is missing.
check the condition of the plugs. (this is probably the first thing to do before the timing check actually) if your not sure what you are looking for post up a pic of them. Dont assume its something serious like head gasket, its usually something simple on these engines. i did one a while back for a mate, had the same symptoms. garage told him a load of bollocks about his head gasket had gone, compression was low, piston rings were fooked, bla bla bla....gave him a massive quote.
turned out to be a map sensor
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Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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quote:
Originally posted by corsa808
timing could be out, faulty DIS pack, air leak, ........
could be lots of things Rob. start by checking the timing marks are all lined up, then find out which cylinder it isnt running on by pulling out a lead at a time. you will hear which one is missing.
check the condition of the plugs. (this is probably the first thing to do before the timing check actually) if your not sure what you are looking for post up a pic of them. Dont assume its something serious like head gasket, its usually something simple on these engines. i did one a while back for a mate, had the same symptoms. garage told him a load of bollocks about his head gasket had gone, compression was low, piston rings were fooked, bla bla bla....gave him a massive quote.
turned out to be a map sensor
Ok mate, ill go take the plugs out in a bit and see what colour they are and take a picture, then ill put them back in and try pulling a lead off at a time... do i pull one off then replace then pull the next one off ? Can i just pull the lead off the dis pack end rather than the spark plug end to do this ? 
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Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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Also if the head was gone would i be able to drive it ? i basically came back to the car park and parked up car running fine, then i start it up and it barely idles but revs freely and the revs drop down, driving it home if i was only on slight throttle it was fine ... dunno if that makes any difference ? then as soon as i booted it , it just bogged down and got slower..
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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pull 1 lead out, then replace it. do this at the plug end with a pair of insulated pliers.
actually, just use your hands, make sure they are wet tho, otherwise you will get a shock
honest
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Sandsy
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Registered: 29th Oct 04
Location: Tilney All Saints Drives: V6 Corsa
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lmao make sure ther are wet, yer rob follow coraa808's advice sounds like something trivial, let us know how you get on
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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think we have the problem solved.
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Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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Found a split in the MAP sensor hose the one that goes to it, quite a big split so just trying to repair it now fingers crossed that will be the problem... i just always thought an air leak makes the car idle higher..
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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an air leak in the main body of the system will make it idle higher, but a split map sensor hose will make it idle eraticly (sp) less pressure on the sensor= less engine load= lower revs
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Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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ok fingers crossed then just trying to get the fuker to fit back on tight ..
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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get some new hose....
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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yeah i will do tomorrow just gonna try this first ive shortened the hose down to where it had split so there is no split in it now..
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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Fixed it, split in the MAP sensor hose !!!  Cheers everyone Corsa808
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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told you so
might set up a 50p a minute 'corsa engine helpline'
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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certainly know your stuff.
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Scotty C
Member
Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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mine did this a week back.
tickin over at 250rpm, wouldnt rev, running on 2cylinders..
Turned out it was my bottom & Cam pullie, they had worn and made the timing go out....
Edit: I see u've fixed it now!!!
[Edited on 22-01-2006 by Monster]
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