Question about 1997 Ford Explorer AWD
Good chance you gobbed some grease/oily dirt in the end of the plug when inserting. It's always grimy around the plug hole and it's easy to stick the end of the plug in this **** on the way in. Pull and clean the plug, might be an easy fix.
Posted on Nov 23, 2008
Spark plugs come pre gaped but, it is still always good practice to check them. They get dropped and banged around in shipping. Check to see if the plug wires are on the correct spark plugs.
Posted on Aug 10, 2008
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Posted on Jan 02, 2017
YOU have a bad coil pack. they are about $50. and not too hard to replace. the trick is finding the bad one. the good news is there are only 3 to choose from ( if its a v6)
Posted on Apr 10, 2009
P0306 is a misfire on cylinder number 6. The fact that you have oil on those plugs may or may not be causing it. The oil on the plugs is because of a leaking "internal" valve cover gasket. First thing I'd do is change the valve cover gaskets. Audi will murder you if you want them to do it (I've heard of people quoted $700 or more for this job). It's VERY easy to do. You can order the gaskets from www.ecstuning.com or www.purems.com for about $25 per side. I'd change them for sure, as they're a known issue on these cars.
Now, if your new plugs and changing the gaskets (and cleaning up of course) doesn't fix the misfire, you need to swap coil packs around and see where the code goes. The coil packs are the three parallel items on the top front center of the engine under the beauty cover. Trace the #6 wire back to see which coil pack it goes to. Then swap that pack with another pack, clear the codes, and fire up the car. See if the check engine light comes back and if so, scan the car to see what codes come up. If you still get P0306, then the failure didn't move, and the coil pack is not the issue (in your case, it's likely to be the wire, since you have new plugs and swapping coils didn't work). If the misfire moved to a different cylinder (one which is now hooked up to the coil pack that was originally firing the #6 cylinder) then that coil pack is bad and must be replaced (another known issue on the A4).
Posted on May 06, 2009
Sometimes a rough idle like that is a fuel filter. As you've already done the plugs and wires the fuel filter would be my next bet.
Posted on Mar 15, 2010
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