Daewoo Matiz nisfire intermittent
Variant: manual
Model Year: 2000
The car was misfiring so I took it to the garag.. They fitted I new plug leads,rotor arm (which they said was the problem) and distributor cap fitted. This improved it and it runs a little better (about 95 per cent OK) It was still missing a beat (misfiring) at various speeds occasionally and when it does so the dashboard light now comes on for a second or two i.e. service light.
The manual says don;t worry about it if it only happens occasionally but it seems to be happening more frequently now. I took it back to the garage and they fitted new spark plugs. It is still misfiring occasionally and each time the "service" light illuminates for a second or two. The car then seems to run perfect. There is no loss of power. The car was serviced a few months ago (I only do about 4000 miles per year !) The engine oil is still clean There is nothing else wrong with it. but am still experiencing the worrying misfire and then the service light comes on.on the dashboard. I feel it is only a matter of time before it breaks down. Any ideas please?
The manual says don;t worry about it if it only happens occasionally but it seems to be happening more frequently now. I took it back to the garage and they fitted new spark plugs. It is still misfiring occasionally and each time the "service" light illuminates for a second or two. The car then seems to run perfect. There is no loss of power. The car was serviced a few months ago (I only do about 4000 miles per year !) The engine oil is still clean There is nothing else wrong with it. but am still experiencing the worrying misfire and then the service light comes on.on the dashboard. I feel it is only a matter of time before it breaks down. Any ideas please?
Posted: Aug 23, 2015 (9 years ago)
Again a car I'm not familiar with BUT dizzy cap,
rotor arm and plugs,
yeah all a good route for misfire faults but I'm not reading about the high tension leads,
usually a prime suspect.
I wouldn't fit all you have fitted and not renew the leads.
All it takes is the smallest defect in the plug cap and it arcs down the side of the plug rather than going down the centre where it's supposed to go.
And it can sometimes be seen as blue arcs/flashes from the plug cap to the head if you look at it in the dark.
Go look tonight when it's dark.
rotor arm and plugs,
yeah all a good route for misfire faults but I'm not reading about the high tension leads,
usually a prime suspect.
I wouldn't fit all you have fitted and not renew the leads.
All it takes is the smallest defect in the plug cap and it arcs down the side of the plug rather than going down the centre where it's supposed to go.
And it can sometimes be seen as blue arcs/flashes from the plug cap to the head if you look at it in the dark.
Go look tonight when it's dark.
Posted Aug 24, 2015 (9 years ago)
Good advice above but I found the answer after spending £90 on new leads etc (including HT lead. THE PROBLEM STILL EXISTED AND OUT OF DESPERATION I LIFTED THE BONNET AND CHECKED EVERY CONNECTION I COULD FIND TO SEE IF IT WAS LOOSE OR RUSTY ! THEY WERE OK. THE SOLUTION ? A LOOSE NEGATIVE EARTH TERMINAL ON THE BATTERY !!!!!!!!!! CAR WAS BACK TO NORMAL AFTER TIGHTENING IT UP. SOMETIMES GARAGES CAN BE TOO EFFICIENT FOR THEIR OWN GOOD !
Posted Aug 26, 2015 (9 years ago)
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