Get the latest advice about your car

Get Started
Advice » Q&A » 2005 Toyota Matrix

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
Profile_thumbnail
 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
Answer It
Flag This

  • Answer #1

    Paul's Japanese Auto Repair & The Brake Stop (1129 Answers) , Rancho Santa Margarita, CA - (949) 888-8686
    paulsjapanese 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
    Profile_thumbnail
     Rookie

    Thanks for your support.

    Reply
    Flag This
Answer Ranks

This week's top 10

1 globalhelper 6 Autohaus Lake Norman
2 milesauto 7 TimGoodreau
3 csubak30 8 Merrimack Auto
4 jose8889 9 raiderron
5 obdcar 10 Camster