Sapofeo wrote: ↑
Thu Jul 15, 2021 3:58 pm
I've not changed plugs on my car before (or any V8 for that matter). Any gotchas or pro tips anyone can offer? I'm hoping to learn from other's mistakes. Ordered NGK Iridium IFR5E11.
Thank you as always
I think the first thing you’re going to hear following my post is to order to correct spark plugs according to FSM, IE PFR5G-11’s.
I can speak on these and say they made a massive difference compared to what the previous owner had on my FGY33. If your specific model year calls for the IFR5E11s, forgive me! I’ve never seen those mentioned though across the model years in these forums. My MY was/is a 1998.
When I changed my spark plugs I went ahead and did a compression test as well as I wasn’t sure the condition of the engine. If you have any doubts I would say take the time to do one since you’re pulling them all out anyways and likely have to remove a couple accessories bolted to the VC to access. If for nothing else piece of mind!
Make sure to take a few photos of which coil plugs go in which order. I managed to mix mine up and caused a no start due to wrong firing order. Switched them to the correct position and PRESTO. It did cause a mild 30 minutes of stress to have them wrong in the first place though. If you have a table to place parts on I would pull out the coils and place them exactly as they were in the engine bay on the table so you can put them back in the same exact spot.
Lastly I would inspect the plug holes for oil as this typically happens when VCG is leaking due to the angle of the VC. If your VC are leaking or haven’t been done before it may be worth replacing so you only have to pull coils and plugs out once.
Don’t forget to have fun and take breaks for your beverage of choice!