20 Most Recent 1991 Peugeot 405 Questions & Answers

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

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

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.

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]

Which model is the car? I have the manual for Peugeot 406 Mar 1999 to 2002 in PDF format. If that's any good to you I can either send it via email or try and find the original link I downloaded it from.

My friend is a part time mechanic he gets his solutions from www.reliable-store.com he gets from their every single detailed info, instructions, diagrams, error codes, troubleshooting, transmission etc. everything on all vehicles, and factory manuals for service, repairs, parts, owner's, operations, maintenance etc. U can get help from there there is a girl at chat she can help you

hi, had same problem twice with my 98 expert , first time it was heater control board(the slider sends a varying voltage thru the thin green wire at the motor plug, to a semi conductor encased in an ally heatsink when checking motor operation check thick red wire for 12v, and thin green for 1.5-4.5v, depnding on slider movement, and thick green for earth conn) , second fault was overheated conns both at motor conn and at relay(mine was bright green cased one behind glovebox), Terry

I am with a similar problem...

After putting on a new sump i found that the starter motor would work cranking the engine but no power is going to the glow plugs. The light on the dash does not appear either.

The relay for the coils does click but that is the end of it. I have a suspission it is the imobiliser but after taking the battery on and off several times to reset... still nothing.

There is fuel, good battery (fully charged), fuel lines are clean pressurised...

Any ideas???

There is no fuse box on the passenger side if it is a R/H drive relay. I removed almost every panel trying to find it despite what the handbook says just ignore it. I finished up going to my local Citroen dealership and asked one of the guys there who said there were just 2 fuse boxes one behind the panel just below the drivers R/H knee and the one under the bonnet. The fuses from the none existent 3rd fuse box are incorporated into the 2 which there are.

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.

maybe a fuse or a wire got disconnected from the guage

if you can hear clicking chances are your motors are shot

On this website you find fuse box description for Peugeot 405 http://www.autogenius.info/peugeot-405-1991-and-1992-fuse-box-diagram

do both sides flash fast or just one side ? if it's both sides you may wish to purchase a new flasher relay for your car. if it's fast on one side still... check further to see if there is a burnt out bulb including (if it has one the side marker light).

robert

i would,nt have thought it would be a good thing to manually shift into first gear whilst going downhill, only use manual shifting from start off ,and overtaking but then the kickdown should be ok for that , not to be used as a brake , how steep is this hill ? i know this isn't what you asked but i dont think theres a problem with it not doing that

not sure about this model ,depends on year but removing fuse F! stop immobilisor from working

If you need the code check gumtree.com and search peugeot clarion radio code, they email code from your serial number! Quicker and cheaper than main dealer, I have used them!