Expedition pings after plug replacement

Last post on Sep 08, 2009 at 11:44 AM

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#1 of 1 99' Expedition pings after plug replacement by jvmagic Sep 08, 2009 (11:44 am)
Hi, I replaced my spark plugs at 120k miles (no issues at that time) w/ some Bosch spark plugs. I replaced all but # 8 being that it is very difficult to reach (hope to get to it soon). I am noticing my SUV ping quite a bit now all speeds 40 and above. Is it because my plugs are not OEM? These replacement plugs were pre-gauged. any ideas? my truck runs fine except the nasty pinging! I do get a bit of white smoke from the tailpipe (2-5 seconds) when I start the SUV in the morning but that is it. thanks in advance

#1 of 1: 99' Expedition pings after plug replacement by jvmagic; Sep 08, 2009 (11:44 am)

Hi,
I replaced my spark plugs at 120k miles (no issues at that time) w/ some Bosch spark plugs. I replaced all but # 8 being that it is very difficult to reach (hope to get to it soon).
I am noticing my SUV ping quite a bit now all speeds 40 and above. Is it because my plugs are not OEM? These replacement plugs were pre-gauged.
any ideas?
my truck runs fine except the nasty pinging! I do get a bit of white smoke from the tailpipe (2-5 seconds) when I start the SUV in the morning but that is it.
thanks in advance