where are the spark plugs ????

[thames]

I have a peugeot 406 1800 cc petrol car.
Today I wanted to change the plugs because its started misfiring and I cant find where the plugs go.
I know that sounds silly I thought that they were at the front but that's the fuel injection set up. can anyone tell me where the plugs are on the engine

Thanks

[PhilLew]

Not certain but mant modern engines are twin cam with the spark plugs in the centre of the head between the cams.

Try looking for a plastic cover/strip along the top of the engine, they should be under there and a long way down.

If I'm right you'll almost certainly need a long socket set extention to get them out

[markja]

take off the big plastic cover on the engine, one with the oil filler in. six large ( might be four ) screw clips, turn 90 ". underneath is a module that takes the place of the old style coil. it's long and covers each spark plug. there is a wireing loom that plugs into the left end of it. in effect it's a coil for each plug. i think it's three screws that hold it on.

[thames]

Thank you for your answer

Now firing on all four .

Thanks again gents.