2008 CR-V Spark Plug Coil Issue

[JeffKeryk]

I swapped the original(?) NGK plugs with 131K. Removing coil #3 connector, noticed a light blue plastic piece fly into cylinder #2. Pulled it out with needle nose pliers and inspected the coil #3 with the others. It was obvious it was the adapter from the harness to the coil. Luckily nothing was cracked, damaged, whatever. Put everything back together, including a wisp of antiseize on the plugs. She runs very nice.

I've never seen this happen before. Your thoughts?

Serviced coolant as well. Easy peasey. The mighty K24 for the win! Plugs looked great for 131K. Replaced with Denso Iridiums, my favorite plug.

 

[slacktide_bitog]

I had to replace coil connectors on a 90s ES300 (Camry). Luckily they were in front and not the back of that 1MZ

 

[Cressida]

Those original plugs do look to be in very good condition. I have no idea why that plastic connector separated like you described. Any idea why the far left used plug does not have the same varnish or golden color on the threads as the other three?

Have you checked or adjusted valve lash yet on that engine? If so I'd like to hear what you found.

 

[Nukeman7]

I swapped the original(?) NGK plugs with 131K. Removing coil #3 connector, noticed a light blue plastic piece fly into cylinder #2. Pulled it out with needle nose pliers and inspected the coil #3 with the others. It was obvious it was the adapter from the harness to the coil. Luckily nothing was cracked, damaged, whatever. Put everything back together, including a wisp of antiseize on the plugs. She runs very nice.

I've never seen this happen before. Your thoughts?

That is the locking cap insert that keeps the connector pins in alignment. No big deal as it simply snaps into place. Check out the video below starting at the 9:00 minute mark.

Serviced coolant as well. Easy peasey. The mighty K24 for the win! Plugs looked great for 131K. Replaced with Denso Iridiums, my favorite plug.

I've always preferred NGK's for Hondas and DENSO plugs for Toyotas. Is there a reason why you prefer the DENSO Iridiums in the CR-V?

 

[JeffKeryk]

Those original plugs do look to be in very good condition. I have no idea why that plastic connector separated like you described. Any idea why the far left used plug does not have the same varnish or golden color on the threads as the other three?

Have you checked or adjusted valve lash yet on that engine? If so I'd like to hear what you found.

When I picked up the car, I serviced the engine oil and trans. I pulled the #1 plug for inspection. I cleaned it and applied a wisp of antiseize to the bottom threads; hence the clean look. The 5th plug is, of course, the Denso.

I did not touch the valves... Perhaps one day. Josephina flat-out loves her new car!

 

[Japanese]

I've always preferred NGK's for Hondas and DENSO plugs for Toyotas. Is there a reason why you prefer the DENSO Iridiums in the CR-V?

Me too. However, I favor more NGK and last time put NGK on my Toyota after I bought counterfeit Denso on eBay prior pandemic.

 

[JeffKeryk]

That is the locking cap insert that keeps the connector pins in alignment. No big deal as it simply snaps into place. Check out the video below starting at the 9:00 minute mark.


I've always preferred NGK's for Hondas and DENSO plugs for Toyotas. Is there a reason why you prefer the DENSO Iridiums in the CR-V?

Perfect! Thank you for the video explanation. It was pretty obvious and I was pretty sure things would be OK because nothing was cracked, etc. I do wonder why it was loose because I wondered if it would be a problem during use? I felt it snap in place, so that's good.

I tend to use Denso plugs ever since I got the NGK fakes from Amazon. Of course, that has nothing to do with NGK... Funny story, our beloved 2006 TSX came from the factory with 2 NGK and 2 Denso plugs.