» » »

Toyota Q&A

Ask Your Question

2005 Toyota Matrix Question: Idle is low and tends to vibrate the car,would this be due to a dirty IAC valve?

 

Question

Jim3265, 1.8L 4 Cylinder, Rancho Santa Margarita, CA, October 02, 2011, 14:19
 Rookie

I have noticed the Idle is below 1000RPM / around 850 to 900 RPM. Could this be do to a dirty Idle control valve and have recently read that it can be cleaned with a spray cleaner. Where exactly is it located and do you have any pictures of a step by step to do this ?

1 Answer
Flag This
  • Answer #1

    paulsjapanese from Paul's Japanese Auto Repair & The Brake Stop, October 03, 2011, 08:40
    Profile_thumbnail
     Technician

    Engine idle speed specification is 650-750 rpm, after at operating temp. improper cleaning of throttle body and idle air control valve openings can cause damage if done improperly, or with the wrong spray. The I.A.C. is located on throttle body. Rough idle could be due to weakened/damaged motor mounts. Would not recommend undertaking this service without the proper tools/knowledge/materials.

    Flag This
  • Reply

    Jim3265, October 03, 2011, 08:44
     Rookie

    Thanks for your support.

    Reply
    Flag This