Whistles during start and acceleration

2002 FORD EXPLORER
192,000 MILES • V8 • 4WD
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ALLEYNE MEMORIAL AMEZION CHURCH
  • MEMBER
  • 1 POST
For the last several days I have noticed that my car has been whistling when I start my vehicle and when I accelerate. Sometimes it continues for as long fifteen minutes, but then ceases. What could be the problem? I have been told the air filter, transmission, and I was even told that it could be my alternator charging. My check engine light is not on and I have had it checked on the diagnostic machine, but nothing comes up on the computer. Please help me with this issue, considering I do my best with keeping up with the maintenance, ie., oil changes, brakes, plugs and wires etc.
Thanks in advance for any help you can render.
Dec 16, 2016 at 10:32 AM
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JOHNNY G.JR
  • ✓ASE Certified Mechanic
  • 320 POSTS
  • ASE Certified Mechanic
Possible vacuum leak, Check EGR and PCV systems, EVAC also.
Dec 16, 2016 at 11:54 AM
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CJ MEDEVAC
  • ✓ASE Certified Mechanic
  • 11,004 POSTS
  • ASE Certified Mechanic
Maybe could also be carbon build up on the throttle plate.

Clean with throttle body cleaner, do both sides of the plate.

The Medic
Dec 16, 2016 at 2:50 PM
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