Join Date: Jan 2006
Location: central coast, california
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanked 5 Times in 3 Posts
Feedback Score: 0 reviews
id say there is about a 90% chance the o rings need to be changed on the injectors. The 99's had the old style o rings and they fail easier than the newer ones....and whent he copper crush washers on the tips fail they tend to really reduce fuel milage....Also, the o rings themselves can affect milage if the high pressure oil system isnt functioning to its full capability.....
Honeslty, there is no real diag for this, its just kinda a gut call, but with over 200k, it honestly is more like "maintanence" than it is a repair, so if i was you i would just do it....