Question about 2003 Acura 3.2TL

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High idle problem seems to come out only when I am in stop and go trafffic and the weather is hotter and humid. Car will rev up to 3500-4000 rpms. I have to leave it in *drive* with my foot on the break pedal to keep the revs down to about 2500 when this happens. Putting it into neutral increases the rev idle. Had the same problem just before winter but did not have any idle problems during the winter ... need some help.

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  • langjuy920 Apr 18, 2009

    I bought my 2003 acura TL about 5 months ago with 60k miles. Lately i found my car idling slightly above 2000rpms. If my foot is not on the brake it just grabs and will start moving as if i was pressing down on the gas pedal.



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Posted on Jan 02, 2017

  • 90 Answers

SOURCE: engine revs up and down

Sounds like a bad IAC motor, or a vaccuum leak, or low coolant... I would definately start with checking these things first

Posted on Jan 26, 2009

  • 1071 Answers

SOURCE: Integra revs RPMs when idling

idle air control motor or just a plain old vacuum leak

Posted on Jul 21, 2009

  • 1111 Answers

SOURCE: 1999 Acura TL Idling sporaticallly

sounds like a issue due to sucking air at some point check for cracked /dry-rotted vacuum lines and or the hi idle choke may be sticking but truly look for the obvious such as what i mentioned just from sitting these things do occur from heat and the elements such as maby a mouse got hungry funny yes but it happens { no pun intended} start there though maby even remove and clean with brake cleaner the hi idle sensor as well spray around the motor while running it will help you determine exactly where it is sucking air if so then look for the cracked or un plugged line

Posted on Sep 07, 2009

  • 50 Answers

SOURCE: 2006 Acura TL revs high in the morning and makes

try replacing your idle control censer it is normal for a car to idle high for a short period when it is cold but only for about 60 seconds

Posted on Oct 26, 2009

  • 24 Answers

SOURCE: 97 2.2 cl high idle, self rev, overheat, started same time

i cannot specifically point out what the problem might be, but an overheating car---never a good thing. check everything related to cooling. fans, radiator, hoses, waterpump, coolant overflow tank(see if its got a brownish color or looks like there is oil), and check your oil while your at it...

Posted on Jan 26, 2010

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This sounds like a bad ignition module. They can be tricky to diagnose. You said it would give more trouble on hotter or very humid days. These are tale tale signs that it is in the beginning stages of failure. Pull it off and have it tested at your local auto parts store. These are usually tested for free. Make sure they test it several times to warm it up. Remember it doesn't have the problem until it is hot. Hope this helps. Good luck.

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