I think the 3.9 serpentine engine has the oil pump on the crankshaft which gives better oil pressure than the older V8's so was hoping its not pressure related. I do not get a flickering oil pressure light and no horrible noises apart from this tapping (sounds like ticking with scope).
When I used the wynns lifter treatment(its not sticky like STP so should not affect pressure) it made the noise vanish it was only after 20 miles it came back. I am going to get the oil pressure checked on Wednesday maybe even get a gauge fitted.
When I used the wynns lifter treatment(its not sticky like STP so should not affect pressure) it made the noise vanish it was only after 20 miles it came back. I am going to get the oil pressure checked on Wednesday maybe even get a gauge fitted.