406hdi misfire when warm
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406hdi misfire when warm
Hi, I have a 2003 Peugeot 406 HDI estate auto with 75,000 miles , belt has recently been changed and has full service history.. When engine is cold it drives fine, but after a few miles when engine warms, it starts to misfire and goes lumpy. Have put on computer and it showed camshaft sensor, changed this and checked timing as well, but problem still exists. it will always start and tick over when warm, but when accelerate, it misfires and goes lumpy... any help would be appreciated.
Last edited by steve_earwig on Tue May 03, 2011 12:11 pm, edited 1 time in total.
Reason: Case changed to get ridy of SHOUTY FIRST POST
Reason: Case changed to get ridy of SHOUTY FIRST POST
Re: 406hdi misfire when warm
Any fault codes?
Re: 406hdi misfire when warm
Perhaps a problem with the coolant temperature sensor?
<steve_earwig> I think this forum is more about keeping our cars going with minimal outlay than giving our cars more reason to go bang
Re: 406hdi misfire when warm
showed cam shaft sensor, on computer, but changed it and same prob.
Re: 406hdi misfire when warm
i had the same problem when it got warm it started to misfire and when i revved and let the engine settle to idle it misfired then too. but mine smoked at idle aswell and even more when I revved the engine it smoked even more and it turned out to be the injectors.
one thing i noticed was when i slowly pressed the accelerator and held it just over 1000rpm and listened you could hear the engine missing slightly on one of the injectors if yours does this it could be the injectors but the way i found out it was my injectors was with a bit of old mechanic work
if you remove your injectors and they are really blocked up with carbon this also could mean that its the injectors because my old injectors where really bad and i have had my new injectors out since and there is no problem with soot or carbon and my engine now runs fine
hope this helps (BEALEY)
one thing i noticed was when i slowly pressed the accelerator and held it just over 1000rpm and listened you could hear the engine missing slightly on one of the injectors if yours does this it could be the injectors but the way i found out it was my injectors was with a bit of old mechanic work
if you remove your injectors and they are really blocked up with carbon this also could mean that its the injectors because my old injectors where really bad and i have had my new injectors out since and there is no problem with soot or carbon and my engine now runs fine
hope this helps (BEALEY)
