jt_armstrong
Active Member
My wife has been complaining about her expy "coughing" gently when she has been driving it. She says it does not feel like a full on misfire. I have taken it out and hadn't been able to detect it until today. It just felt like an ever so slight miss.
I have a scanner but there are no fault codes. The truck has 120k on the clock and the maintenance book shows no sign of the plugs having been changed. Is it worth just changing out the plugs or is there and tests / additional diagnostics I can look at.
If I do change the plugs, is there a preferred brand? Also is it worth changing out the COP's as well?
I have a scanner but there are no fault codes. The truck has 120k on the clock and the maintenance book shows no sign of the plugs having been changed. Is it worth just changing out the plugs or is there and tests / additional diagnostics I can look at.
If I do change the plugs, is there a preferred brand? Also is it worth changing out the COP's as well?
