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  1. S

    Vavle open

    Ok guys have a 2003 4.0 had a broken vavle spring on number 2 cyclinder we installed a new one but still getting some air coming thur the intake any help would be awesome
  2. S

    Bad compression

    Ok guys need some help 2003 explorer xlt 139,000 miles the number 2 cylinder is reading 0 on the compression test all the other ones are reading 175psi it's a 4.0 the plug looks brand new tried for codes and nothing tried the finger over the hole sucks in the rest blows your finger away need...
  3. S

    Really rough idel

    Ok guys I just bought this 2003 explorer xlt with the 4.0 motor it runs really bad all the time new plugs and wires and coil pack it sounds like it has a huge vacuum leak but can not find it sprayed strarting fluid all around intake and never changed anything plz help oh it has 139,000 miles
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