how do i trouble shoot the check engine light on and engine noise?

2007 CHRYSLER ASPEN
152,000 MILES
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LORMARK92
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  • 2 POSTS
car has oil. we hooked up a gauge to the sending unit. It initially had 40 psi then dropped.
Dec 26, 2011 at 5:29 PM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
The pressure will as the oil gets hotter and thinner.What did the oil pressure drop to at idle?
Dec 26, 2011 at 5:32 PM
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LORMARK92
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  • 2 POSTS
dropped to 10 lbs after 3-4 minutes with cold engine. Oil light comes on sporadically.
Dec 26, 2011 at 5:43 PM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
What size engine do you have?That oil pressure sounds about right.
Dec 26, 2011 at 8:24 PM
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