I was driving home from Springfield when I noticed the trans was having a hard time keeping 70 MPH. anyway I put a OBD 2 on it and poped up with two codes on being P0304 "#4 misfire" got changing plug after work. but what gets me is P1870 whic is trans component slipping anyone else with a 98 have this problem or someone know what it is. I am going to have the fluid chaged after work. anything else I should look for?

 

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