engine ping

Joined: Sep 02, 2008 Posts: 1

I just purchased a used 2005 Armada. the engine pings constantly even though I use high test gasoline. the nissan dealer looked at the car and stated the timing is correct. what else could cause the pinging of the engine when driving?

External Since: Apr 17, 2007 Posts: 31

On Sep 2, 5:22 pm, rabkal <n....RemoveThis@000.com> wrote:
> I just purchased a used 2005 Armada. the engine pings constantly even
> though I use high test gasoline. the nissan dealer looked at the car
> and stated the timing is correct. what else could cause the pinging
> of the engine when driving?
>
> --
> Posted at author's request, using moderatedhttp://www.AutoForumz.cominterface
> Thread archive:http://www.AutoForumz.com/engine-ping-ftopict229781.html

If the timing is correct and the fuel octane is right, then pinging
may imply excessively high combustion temperatures. That could be
caused by a cooling system blockage, spark plugs of incorrect heat
range or possibly a blocked EGR system. How do the plugs look? If
one or more look blistered from excessive heat, then combustion
temperature is the likely cause. Good luck. Al