WHY DOES A 1995 LEXUS SC400 LOSES POWER AND KNOCKS OFF WHEN IDLING??

  • Tiny
  • Paul Dennis
  • 1995 Lexus SC 400
  • 250,000 miles

When idling at low RPMS, engine loses powwer and frequently knocks off. Runs fine at higher RPMS

Tuesday, October 25th, 2011 AT 3:55 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Clean and test the idle air control valve and also the throttle body-also the TPS and the MAF sensors

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Wednesday, October 26th, 2011 AT 1:25 AM

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