Hi I have recently bought a 1998 Peugeot 406 diesel that has done 150k it has a good service record but the problem is that it kicks out a grey ish colour smoke when I accelerate don't look so bad during the day but at night it embarrassing,She drives fine and doesn't use any oil or loose any water.the smoke smells of diesel. I've put some injector cleaner in the tank and also some stuff called stop smoke in with the oil. Can you make any suggestions at to what the problem could be? Respects Gregg
MY406 smokes
Oct 08, 2006
31 Replies
Try and ring pug spares or go to the web site.and get a price for new injectors.
Could be a number of things causing it to smoke, Oil and filter are just one, injectors are another , fuel contamination,? air filter,? valve stem oil seals,? worn rings,? to much oil in the sump, these are a few causes, I would find a diesel specialist in your area and ask his advice,,, could save you a lot of time and money,, I sometimes get advice from my local bus depot mechanics....they are usually spot on... !!!!! Fitzy
As you have changed oil and filter did you change air filter? If not that would be worth trying. The garage was correct if it starts and does not misfire at idle everything is more or less OK. The other possibilities are - tight valve clearance - pump timing - this is sometimes adjusted to increase performance but it also increases smoke possibly wear to injectors. If you decide to change injectors use a local diesel specialist for replacements - never buy new injectors they are unnecessary. Always use service exchange from a specialist - not knowing where you are if in Greater London use Watson's Diesels in West London. You mentioned smoke looks worse at night this is a bit of an optical illusion it is no worse just that car headlamps show the particles better at night
PhilC
I totally agree, Fitzy
Re, con injectors £130 sounds about right, (40 quid) each up north, but as Phil has mentioned,,, have the valve clearances checked and adjusted first, this is a well known problem with some Peugeot's, could even be the cure your looking for, Fitzy
PhilC wrote:
My old P reg 1900 TD 406 always looked smoky out the back at night. It did a reasonable mpg and passed emission tests so it didn't bother me (much). I wondered if there was something about the red rear lights showing it up more as it was invisible in daylight. Have you tried just dipping the rear view mirror ;-)
jim.
Hi Jim Unfortunally I'm old school and tend to be a bit conscientious,But I have noticed that the car miss fires at low rev's so I think the next job is injectors. man it's just driving me up the wall respects gregg Ps anyone in the surrey area (esher) wanna come n change em for me!
are they the same as a pug 405 lay out? i am in Addlestone and if you like i give you a hand to do the job?
I have tryed and look on web sites but no joy.but i can help you if you need help. can help you this week end (sunday)
Even if the layout is different the principle must be the same. As far as I know there were no real changes for years until the advent of HDI (common rail diesel) in the late nineties.
Even if the layout is different the principle must be the same. As far as I know there were no real changes for years until the advent of HDI (common rail diesel) in 1999.
Hi Gregg
Only just caught up as it happens I live near Woking - just up the road - and have the socket for changing the injectors. More than happy to help ..........
As you have mentioned a misfire I am almost certain you have a tight valve - if you want to try another set of injectors I have a spare good set but you will need to get washers - run out. The email address is good if you want to contact me
Phil
i think your find it puts air into your servo.which helps with your brakes.so you dont have to stand on the pedal. chris Addlestone
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