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Off and then

Question : MY 1994 Peugeot 405 SAR (A) runs smoothly for days but after that, the engine dies when I stop the car.

At times, it jerks while running. The RPM needle suddenly drops and goes back.

Sometimes, I find it difficult to start the car. Then it runs without any problem for a few days.

I have done a top overhaul, replaced all four plugs and cables, replaced the ignition/coil, computer tuning of the engine as well as cleaning the computer plug pins.

However, I still face the same problem.

Answer : Your symptoms indicate that there is an intermittent break in current flow to the primary circuit of the ignition system and this could be a problem either with the cable harness between the ignition switch and the ignition system or it could be the ignition switch itself.

It is not uncommon that over years of use, the contacts in the ignition switch get loose and have poor contact.

Sometimes, even the bunch of keys hanging on the switch can create enough leverage to break the contact and cause the engine to stop.

My advice is to check the wiring carefully and you should be able to find the cause.

 
 

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