Originally Posted by KxFred

Thanks for the input. I have not checked the chain wear the shoe that it rides on did not look too work and the engine has only 123k miles on it so I didn't think to check that. The haynes manual says to check the injection timing every 30k miles so I did that. I just need to check the injectors I think but I don't get why it seems to get better for a while when I adjust the timing.