Use the same Denso K16PR-P11 plugs that were originally installed. Run an
Internet search - you can find 'em for $8 - $10 each. These Troops are
extremely sensitive to resistance variances from OEM plugs, and you risk the
dreaded CEL if you use anything else. AND, be very careful taking the old
ones out. At 100K, the threads have probably seized in that aluminum head
(assuming the plugs haven't been changed previously).
> My trooper is hitting a 100k, Any recommendations for spark plug brand or
> platinium etc...
Peter - 13 Apr 2004 18:04 GMT
> Use the same Denso K16PR-P11 plugs that were originally installed.
> Run an Internet search - you can find 'em for $8 - $10 each. These
> Troops are extremely sensitive to resistance variances from OEM
> plugs, and you risk the dreaded CEL if you use anything else. AND,
> be very careful taking the old ones out. At 100K, the threads have
I've been running Bosch 4-electrode version (forgot the name) for some 10K
miles with no problems now.
Peter
Dave - 13 Apr 2004 19:10 GMT
I'm relying solely on the experience of many others who own '99 and later
Troopers. Prior to '99, it seems Troopers weren't quite so picky about
plugs. Just curious, what year is yours?
> > Use the same Denso K16PR-P11 plugs that were originally installed.
> > Run an Internet search - you can find 'em for $8 - $10 each. These
[quoted text clipped - 6 lines]
>
> Peter
Peter - 14 Apr 2004 07:34 GMT
You could be right, I have 98 Trooper.
> I'm relying solely on the experience of many others who own '99 and
> later Troopers. Prior to '99, it seems Troopers weren't quite so
[quoted text clipped - 10 lines]
>>
>> Peter