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Old 20-03-17, 01:16 PM   #1
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Default Plugs & Fuel Filter

Hi

I need some expert advice please.

I need to change the plugs and fuel filter of my 201 PUG 406 2.0 Petrol

Do I need to disconnect the battery before changing the plugs?
(so nervous of all the sensors I thought it might be wise to do)

Also, before I change the fuel filter, what method would you suggest to release the fuel pressure? I am weary to remove the fuse to the fuel pump and start the car also because of all the sensors.

I do not have a Auto diagnostic tool to reset a fault.
I'm also quite far away from the nearest place that does.

I would really appreciate your help

Thanks very much!
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Old 21-03-17, 08:45 AM   #2
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Just follow the Haynes manual, you can't go wrong.
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Old 21-03-17, 10:02 AM   #3
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Thanks Gibbo

I do not have a Haynes Manual.
Where could I get one?

Cheers
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Old 21-03-17, 12:22 PM   #4
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Its all fairly straight forward stuff.Just remember,DO NOT switch the ignition on when you have things disconnected,like the coil pack multi plug and fuel lines.
Also the fuel filter is very awkward to get at.Only use your fingers to squeeze and release the fuel pipes,never force them with a tool.When refitting the pipe listen for a click and its locked.
No matter how you go about it you will have about a cup full of petrol spilling so be very very careful,best do it outside.
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Old 21-03-17, 02:24 PM   #5
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Thanks Old Pug!
Much appreciated!

How do you suggest I release the pressure on the fuel line?
Just disconnect it and turn my face away? lol
Thanks for the tips, yeah that fuel filter is a very awkward one.
So sorry they never put it somewhere more accessible??

Cheers
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Old 21-03-17, 06:51 PM   #6
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Once engine is turned off there is not much pressure i the fuel pipes its not a pressurised system it is pressurised by the pump

DO NOT disconnect the battery unless you really have to it can cause you more problems if not done correctly
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Old 22-03-17, 07:35 AM   #7
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Ok thanks reliable 406!
Much appreciated!
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Old 18-04-17, 04:07 PM   #8
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Hi

Thanks for the advice!
I did the service with no hassles.

I would like a bit more advice if possible.
I recently bought my beautiful 406 2.0 Petrol.

The car is really in such good nick however
There seems to be a slight misfire when cold.

Also when I tap the accelerator when idling in neutral
it first seems to suck in air, lag and then rev.

What could this be?

When I got the car it had not been serviced in 30000km.
The air filter was totally blocked. The plugs did not
look too bad (slightly dark coloured) The fuel filter
was an also not too bad.

Could it be the Catalytic converter or a Lambda Sensor or EGR valve?

I have had it on Peugeot Planet 2000 and there are no faults picked up.


It's such a beautiful car I would really like her running well.

Thanking in advance!
Cheers
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