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My Peugeot 508 1.6 petrol engine 2012 sedan carbon builds up on values. My question is how can I clean the carbon

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  • Peugeot Master
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Fix the reason for the carbon in the first place
it is excessive fuel or oil consumption
as to cleaning carbon off the valves , there are very few products that will do that
you can ask specialist engineering shops for products that may work but the real fix is to pull the head and clean the valves and fix the reason the caused the problem

Posted on Dec 23, 2016

Testimonial: "Thank you Bill but this car doesn't use excessive fuel or oil I have been using BP 98 as was the instructions from the dealer but after 55,000km the engine failed"

  • Bill Boyd Dec 27, 2016

    there is a problem with the peugeot engines as I have heard of a few failing early in their life
    2012 vehicle is 4 years and that is only on average 12,000 lkm per year so I would be taking it up with peugeot head office.
    regardless of the warranty period there is an expectation that the engine will last longer than that so a bit of shove may get results.
    don't expect too much from a dealer --go straight to the top office to get results

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Posted on Jan 02, 2017

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The link below is a pdf maintenace manual which you can download.. have a look on page 43

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There's also a Youtube video dealing with the 1.8 petrol engine:

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Usually, if the ignition is turned off and the engine still runs, in the case of a petrol engine the engine is "coked" has a carbon build-up which continues to ignite the petrol/air mixture when compressed. If a diesel, the pressure relief valve is not operating at switch-off.

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My petrol stone cutter misfires badly. It starts al-right but then the engine keeps misfiring sending flames out of the exhaust


Is this a 2 cycle engine, I ask because you said fuel mixture was correct. If so 2 cycle engines build up carbon at the exhaust an needs to be cleaned out so often. I have seen the exhaust glow red because of it. This will cause problems. In a 4 cycle engine if the valvues get out of adjustment they run erratic. Can you tell what brand and model engine is

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What are all engine torx settings peugeot 206 1.4


that is in the FSM, buy the book at Peugeot dealer.
torque , not torx.?
torx is a head shape.
try a real forum for french cars?
http://www.frenchcarforum.co.uk/forum/viewtopic.php?f=4&t=40058

goggle works.
https://www.google.com/webhp?gws_rd=ssl#q=peugeot+206+1.4+%2C+engine+torque%2C+for+bolts


TU engine? or ET? or>
1.4 L TU3JP I4 (petrol)
1.4 L ET3J4 I4 (petrol)
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know what engine, first is best.

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Can a bad EGR valve cause a high rpm misfire?


Yes it can, at least on my 97 saturn SL2.
You can remove the EGR value and check for carbon built-up.

The carbon can build up on the intake valves and cause misfires.
The carbon lowers the octane level of the gas and also partly burns some of the fuel.

How I do a valve cleaning:
  1. Buy engine de-grease for the outside of the engine
  2. start engine when it is cold.
  3. remove the pcv hose
  4. spray into the throttle body for 30-60 seconds or stop when the engine chokes
  5. turn engine off
  6. wait 30 mins
  7. start engine, white smoke will appear
  8. have oil change since the cleaner will thin the oil
I use Lucas Upper Cylinder Lubricant to keep the valves clean for the type of engine below.
http://www.lucasoil.com/products/display_products.sd?iid=26&catid=8&loc=show 3ec0aad5-8a21-4065-85b4-cbad634920da.jpg

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Remove peugeot 307 harmonic balancer


A Peugeot toyota. , is this an engine swap , question?
post to Peugeot forum?

no year stated. 307 is just a body, and means zero.

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2.0 L EW10 I4 (diesel)
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Just accelarates slowly from stand still


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PEUGEOT 405 SRI, 1995. Once in a 3-4 months, engine start to stall, after working temperature is achieved (87-90C). I need to maintain more than 1000 RPM, otherwise, engine stalls. This problem comes and...


I'm not familiar with the engine in your car, however .. the symptoms you describe could be due to a faulty MAF.

Try disconnecting the electrical wires on your MAF to see if that makes any difference (and maybe clean it..).
peugeot 405 maf Google Search

You obviously have no warning lights appearing on your dashboard. Sometimes a failing MAF doesn't cause any warning lights to appear.

To be on the safe side, can you get somebody to do a diagnostic check with a hand held scanner- an OBD2 ..? See if any error codes appear.

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