On my 2007 Ridgeline with 88K miles, I wanted to do the first spark plug change. I bought Denso Iridium plugs and had my local indie mechanic install them. When I started the engine, I immediately had an engine miss and the CEL came on. Mechanic found one of the ignition coils was bad. Probably damaged when he removed and replaced it. So $80 later, it was fixed.
QUESTION: on most current V-6 engines with factory plugs that last 100K miles, is it wise to replace the 6 ignition coils when you install new iridium spark plugs? I need to consider this since my M35 is due for new spark plugs.
BTW on the Rock Auto web site, they warn that new spark plugs should be installed WHEN replacing the coils because the plugs can be damaged in that process. Huh???
QUESTION: on most current V-6 engines with factory plugs that last 100K miles, is it wise to replace the 6 ignition coils when you install new iridium spark plugs? I need to consider this since my M35 is due for new spark plugs.
BTW on the Rock Auto web site, they warn that new spark plugs should be installed WHEN replacing the coils because the plugs can be damaged in that process. Huh???