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V6 VVT Camshaft actuator

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  • V6 VVT Camshaft actuator

    My sons 2003 4.0 V6 had a head gasket leak.After the heads were fixed and the engine put back together it now has developed a problem. When the engine is warm and you go over 3000 rpm it runs rough and loses power. The computer points to the left camshaft. We swapped sensors and it still says left camshaft. We pulled apart the VVTI actuator and it was gummed up. Cleaned it and put it back together but the fault is still there. We have ordered a new camshaft and actuator assy and hoping this will fix it. Has anyone else had an issue like this.

  • #2
    Originally posted by pattosprado View Post
    My sons 2003 4.0 V6 had a head gasket leak.After the heads were fixed and the engine put back together it now has developed a problem. When the engine is warm and you go over 3000 rpm it runs rough and loses power. The computer points to the left camshaft. We swapped sensors and it still says left camshaft. We pulled apart the VVTI actuator and it was gummed up. Cleaned it and put it back together but the fault is still there. We have ordered a new camshaft and actuator assy and hoping this will fix it. Has anyone else had an issue like this.
    Did you check the filter screens in the head for VVTI?
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    • #3
      Not sure as my son is working with the mechanic. Thanks for the reply. I'll let them know.

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