Peugeot 405 - Answered Questions & Fixed Issues

Sounds like your Mass Air Flow sensor is in need of service/ cleaning.

Most likely the ECU (Engine Computer Unit) is responding to some duff sensor / loose cable / whatever ..

All modern engines have more sensors than you can shake a stick at, some positioned in the most inaccessible places, that can cause the most obscure problems imaginable (remember the Oxygen Sensor in the Exhaust manifold that was 'poisioned' by some dufff supermarket petrol ??)

It's a Peugeot garage computerised diagnostics job I'm afraid...

did the head get resurfaced or planed

in automatic transmission box has two solenoids that were broken , so they must be changed , because I am peugeot specialist in Australia.

a haynes handbook,but i doubt it as a lot of immobilisers use the earth side of the relays to cut out engine and circuit diagram would make it too easy for the boy racers to half inch the jam jars.sort of classified info .sorry cant help

Hi the problem your having is going to be that the stereo is locked up now.
The only option you have left is to go to peugeot main dealer and take the car with you they can then reset it with a hard reset code this can only be done at the dealers they will not give the info out to anyone as the stereo could have been stolen so you will need to take the car to the main dealers.

Let me know how you get on or if you need further assistance ok

without seeing this vehicle i cannot give a answer ,the carb leaks ?? but this could be a faulty pipe thats perished or the accelerator pump diaphragm as the most common fault but without my head yunder the bonnet i honestly cannot say but the accelerator pump diaphragm is the most common fault

You've covered all the reasons why fan belts shred. I would suggest looking closer, and making sure the bearings are good in all belt driven devices.

Reply back if you have any further questions.

sometimes a nut comes loose behind the end cover on ml5 box.

Hi,just reading with interest" Ianhende's" problem with his 406, I have the same sort of problem with a 2002 406 hdi (110) i.e hazards going off,plus central locking turning on & off whilst driving. have replaced battery, the mechanic is thinking that it is to do with a faulty door lock, any ideas out there ???? [email protected]

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Get this manual online at www.reliable-store.com and get complete guide on whether to repair or not, service it, and how to repair etc, along with wiring diagrams, electrical diagrams, torque specs, error codes, everything.

could be the tensioner bearing

you have to actually drop the tank... drain out all the fuel and perhaps even clean the inside with a pressure washer... make sure it is completely dry before you assemble it again.... add a bottle or two of gas line antifreeze (it sucks up any remaining water) when you refill it and you should be good to go

If the refrigerant is low the compressor will not switch on

you can fix the problem by you own but with the help of service and repair manual with diagram and you will get the manual from the given link easily http://toolsnyou.com/

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Sounds like you have a blockage in your water system or your head gasket has blown. If the radiator is full then check the water to see if it is oily or check the oil to see if it is a grey colour as what you are describing is common when the water is not circulating through the internal radiator in the dashboard that air is pumped through to give you the warm air and the car is overheating quickly means the water is leaking into the engine somewhere. If the oil and water are fine then use a garden hose to flush out the water system heater hose.