loss of power moving off + Corsa

voxpop

Guys, just wondering if anyone knows whats going on here. This is an intermitent problem - it was happening yesterday alot and today its fine anyway down to the problem.
When moving off in first gear the car starts to accelerate and then loses power for a second or two (ie no accel) and then it suddenly catches again. Ive noticed it a little aswell in 2nd and 3rd with lowish revs. Is this some sort of clutch slippage problem or something else ?

Any ideas ?

Kimbot

Sounds like the clutch is slipping!! More than likely will need to be replaced!!

voxpop

is there a way I can test this out - because its intermittent, I dont want to bring it into a garage and get charged an arm and a leg just for them to say there is nothing wrong

Kimbot

If its only intermittant let it go for a while!! Mine was like that for about 6 months before I got the clutch done!!

I waited until I noticed it happen everytime I changed gear etc!!

kluivert

Is your emissions light coming on?

How old is the car, what mileage has it got? what engine has the car got?

Lose of power with Opel in low revs means EGR Value is starting to give way. You start to notice a loss of power stopping at roundabouts junctions etc.

Get a new part of ebay and get a garage to install it.

Tabnabs

Does the engine sound like it's running rough at all or does it rev smoothly?

johnnyrotten

Dirty Throttle box maybe. Build up of carbon

Sizzler

I think the thread title is whats known as a 'paradox' ie Power & Corsa in the same sentance

Seriously though, hope you get sorted.

MercMad

What year and what engine size ??

The EGR valves DO give trouble, they should be cleaned out every 6 months, if they get gummed up you have to repalce them !

Sometimes the air flow unit goes too !

Lpfsox

happened to me twice with my 10yo 1.4ltr Astra.

First time it was a crack in the distributor cap causing it to misfire. Second time seemed to be crap in the butterfly valve under the carburettor. Mechanic cleaned this up on Monday and so far has been fine (fingers crossed, test is next week - don't want to stall/cut out during that!!).

voxpop

The emmision light doesnt come on

The car is a 00

Mileage ~ 55,000

Engine 1.0L


I read somewhere that it may be caused by a faulty air flow sensor or somthing ??

MercMad

I read somewhere that it may be caused by a faulty air flow sensor or somthing

.........thats what I said, Air Flow Meter/Mass Air Sensor/;Hot Wire Sender, whatever they want to call it, it WILL bring the light on though AFAIK so maybe its something else !

Lucifer

EGR Valves and Air Flow Meters usually bring on the engine management light on the corsa. One way to get an idea if it is an airflow meter is when the problem is happening, with the car in neutral, floor it and listen, with the air flow meter gone, you will usually hear a loud throaty (dont know how else to explain it!) noise. but as i said, the spanner light should come on on the corsa for either of these problems.

ninty9er

Ditto on the car type, year(but with 93k on the clock) and problem. Was out in town tonight and parked the car by the river(where it was 2 degrees according to the car). I've had the problem before, and normally only when the engine is cold. No light on the dash though. I had to pull over and floor it in neutral.

The revs held at 2500 for about 10 seconds and then it was fine, but i was actually slowing down the more I hit on the accelerator before I pulled in. I really have to get it checked out. It quite dangerous really

voxpop

No lights come on and its only really a small delay 1-2sec. Its like the revs go up then level off for a second or two and then catch again which causes the car to jump or judder a little.
If I could recreate the problem consistantly I wouldnt mind taking the car to a garage just dont want to bring it along and get told there is nothing wrong and charged.

The engine does sound a little rough to me - though im not sure what it should sound like - its my first car.

ninty9er

Engine can sometimes sound rough, it's normal because of the strain on it only being 3 cylinder