Spark Plug thanks to the Forum

[Sm1ziley]

Hi everyone,

Haven't posted here before, but I've been lurking around reading some how-to's (which is actually how I found the website). I've got a 96 Avalon with 194k+ miles on it, and just changed out the original spark plugs this afternoon.

I can't remember where I saw the post, but whoever recommended the 5" wobble extension piece, a big to you. Was able to change out all 6 plugs in 45 minutes flat, no problem whatsoever. Best $10 I've ever spent. And here I've been putting this off for years because I thought the intake had to come off.

Also, as a tip, if anyone needs to replace Bank 1 Sensor 1 oxygen sensor (the one facing the firewall); you can get it out from the engine bay. Harbor Freight has an offset oxygen sensor socket for $3.99. Just put it on, then attach a breaker bar to it, and done. Didn't have a problem getting it out from the top, though my forearms are a bit scratched.

[Param]

Have you repalced it with the same Dual ground electrode plugs?

I replaced mine after 150,000 miles ( dual ground electrode Denso PK20TR11 ) with Single Ground electrode NGK Iridium last spring. Few times the car refuse to start on 1st attempt (or even 2nd attempt).


When I go through the manual, it states NOT to use single ground electrode plugs.

Does this change affect anything? like startup, useful life, gas consumption?

[bcossa2001]

The sparkplug type should be on the emission label on the firewall of the engine compartment. I was told emphatically by another owner NOT to use the singel tip plugs.