I have been following the site with interest, joining yesterday with Simon's help. Thank you Simon.
Have a 1999 3500 LWB Facelift with 166000km that has a recurring misfire/jerkiness around 2000rpm.
Spent almost R10k on TPS switch, plugs (one platinum tipped was arcing after 28000km), coil, injectors ultrasonic cleaned and one replaced, and electrode cleaning and sealing of plugs/leads/coils.
The costly process eventually eliminated the symptom for 10000km, but it appears to be back again.
Otherwise utterley reliable and good service for 80000km over five years, used mainly for weekends and long distance trips. Really a pleasure to travel in.
Any ideas before I throw more money at this thing!!!
Affiliate Member
This "thing" is a highly specialized and sought after example of the finest automotive engineering, it is a PajeroKevin wrote:Any ideas before I throw more money at this thing!!!
On a serious note, check your ht leads as I have come across a few with intermittent breaks in the carbon inner of the lead where it would just have enough resistance at a certain harmonic vibration to cause a miss. If not that I would go for plugs as the 6g7 engines are quite finicky in that regard.
Henk
Henk Bannink
Some people are wise, some people are otherwise
Some people are wise, some people are otherwise
Affiliate Member
I prefer to use the standard ngk plugs and change them on a regular basis. I know it is a bit of a schlep to do on the 3.5 but it makes me feel better knowing that the plugs are "fresh". VERY IMPORTANT make sure the plugs are the correct spec as mitsu uses a resistor plug and if you change this to a normal one you are in for endless drama and rough idling.
Henk Bannink
Some people are wise, some people are otherwise
Some people are wise, some people are otherwise
My garageman has confirmed the fitment of NGK BKR5E-11 plugs. Could these be failing after only 10000km?
Not easy to check of course on a 3.5 without incurring labour cost.
Not easy to check of course on a 3.5 without incurring labour cost.
Affiliate Member
I have had plugs fail after 5k so it is quite possible. there could be an underlying cause as well like a valve stem seal leaking and contaminating it. For the same price it could be the plug lead and unfortunately you will have to test to pinpoint the cause. The plugs that you have quoted seems to be the correct ones as the R indicates that it is a resistor plug. (see attachment)
Henk Bannink
Some people are wise, some people are otherwise
Some people are wise, some people are otherwise