zetec misfire,engine surge
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zetec misfire,engine surge
Hi Guys
I'm hoping to get some insight here
I have a 96 model 1.6i zetec DOHC escort wagon
Some time ago the car developed a slight misfire that just got worse over time.
First thing I did was change the spark plugs,due for a change anyway,the old ones that came out still looked new,no residue or oil,nice clean burn pastern.
Misfire went away for about a day then came back,only slightly and only on low revs,pulls fine from 2500k upwards.
Next changed the Plug leads,got the proper expensive ones for the zetec engines,same story goes away for about a day on so and then it comes back
I have replaced the fuel filter,plugs,plug leads,checked all the vacuum lines for leaks,replaced any dodgy ones (T Piece under Coil pack) ,cleaned throttle body and all censors (MAF air censor)
The problem does not seem to be misfire but more like a engine surge at the moment and only till 2500k revs,after that the car pulls normal,its driving me nutts,going to change the coil pack next and see what it does.
Any advice would be greatly appreciated,I would really love to have it sorted.
I'm hoping to get some insight here
I have a 96 model 1.6i zetec DOHC escort wagon
Some time ago the car developed a slight misfire that just got worse over time.
First thing I did was change the spark plugs,due for a change anyway,the old ones that came out still looked new,no residue or oil,nice clean burn pastern.
Misfire went away for about a day then came back,only slightly and only on low revs,pulls fine from 2500k upwards.
Next changed the Plug leads,got the proper expensive ones for the zetec engines,same story goes away for about a day on so and then it comes back
I have replaced the fuel filter,plugs,plug leads,checked all the vacuum lines for leaks,replaced any dodgy ones (T Piece under Coil pack) ,cleaned throttle body and all censors (MAF air censor)
The problem does not seem to be misfire but more like a engine surge at the moment and only till 2500k revs,after that the car pulls normal,its driving me nutts,going to change the coil pack next and see what it does.
Any advice would be greatly appreciated,I would really love to have it sorted.
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There designed to make your car better on emmissions.
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