» » »

Acura Q&A

Ask Your Question

2002 Acura TL Question: engines revs up high then down constantly - 5min after starting

 

Question

mikki L, 3.2L V6, Houston, TX, May 25, 2011, 12:35
 Rookie

Don't drive it everyday. Recently, I stopped at a light and it just killed. It will start fine then it starts idling after 5min - real high,then low constantly.

2 Answers
Flag This
  • Answer #1

    DaveJHM May 25, 2011, 21:07
    Profile_thumbnail
     Master

    I suspect you may have a vacuum leak at the engine or a fault idle control valve. A good diagnostic test is in order.

    Flag This
  • Reply

    Visitor, May 26, 2011, 13:19

    Thanks. Had transmission/engine work done few months ago; wonder if this is warranty covered from that work?

    Flag This
  • Reply

    DaveJHM, May 26, 2011, 21:36
    Profile_thumbnail
     Master

    I'm not sure what the scope of the work was that you had performed. If something was done under the hood, a hose could have accidentally been disconnected and then there you go - there could be a vacuum leak. I would return to the point of service just to recheck their work perhaps.

    Reply
    Flag This
  • Answer #2

    patrick mannion from Greg Solow's Engine Room, May 26, 2011, 00:23
    Profile_thumbnail
     Master

    Yes vacuum leak or possibly low coolant level are the likely issues that would cause this problem. Is the Check Engine Light on? If so codes stored in the computer of your car may indicate where the problem is.

    Flag This
  • Reply

    Visitor, May 26, 2011, 13:20

    no. check engine light is not on. Had new transmission and engine work few months ago....

    Reply
    Flag This
Answer Ranks