- May 16, 2010
Yes, waiting over 100k to swap out plugs would be the main cause of the buildup of byproduct deposits. I would guess that most of that is byproduct of crappy gas and ethanol fuel combined with the head gasket that after 400k needs to be replaced. There are traces of burnoff in the antifreeze, which can be seen in the radiator after all of these years.Still learning to read "plug".
What's the crud on plugs 3 and 4? Did the latent PM cause that?
And did your corrective actions resolve? (other than just changing the plugs)
I picked up this truck with 125 on it and have driven it for 300k more. Over the last 100k, I have not been the primary driver, so unfortunately I did not keep up with the PM as it should have been. Fluid changes have still happened as well as an axle service and some other PM Items, but it was always in service as a work truck.
Crazy that a truck with 400+k on it has been a reliable work truck for YEARS...
When I first bought it 10+ years ago, I baselined, did all the fluid changes, did the axles, brakes, ignition, all the cooling system hoses, etc. She is a great truck and I am giving her some much needed love.