Camry :: 2003 Toyota - Low Idle RPM With Engine Heated Up
Jun 19, 2011
I have a 2003 Camry 4 cyclinder with about 85k miles, for the past few months I've noticed that it has not been idling at 800-900 rpm with a hot engine, but instead it was idling around 500-600rpm. Not really knowing what was wrong, I went through the following process of elimination.
1. New Spark plugs - no change
2. Air filter and oil change - no changes
3. Coincidentally found my upper torque strut mount had a crack in the rubber so I replaced the torque strut mount and 2 lower motor mounts - no changes
4. Seafoamed the intake vacuum hose and gas tank - no changes
5. Checked oxygen sensors (the check engine light was not on)
6. FINALLY did some homework online and someone with a similar problem was suggested to clean out the sensor in the throttle body with carb cleaner - Problem solved!
Here is a verbal summary of how I did it:
1. Make sure the engine is cool because it is in an awkward area so you don't wanna get burned
2. Remove the top half the air filter box and disconnect the electrical and other rubber hoses so that the plastic/rubber intake manifold can come out easily
3. Disconnect the intake manifold, it's basically the non-metal tubing
4. In the throttle body assembly (the first metal component you will encounter after the intake manifold), you will see the "hinge door", swing it open and you will see a pencil erased sized hole toward the back end, use a flash light to see.
5. I used the handle from a hair of needle nose pliers to hold the "hinge door" open while I pointed my straw from the carb cleaner at the pencil sized hole where I suspect the sensor is located and give it a few quick spurts of carb cleaner (caution! Make sure your straw is secure before spraying because you don't to lose your straw down the throttle assembly!)
6. Wipe dry with clean cloth and give it a few minutes to evaporate, replace everything and fire up the engine (it might take a few cranks to get the car to fire up). Warm up the engine and take it out for a spin to see if it has resolved your idle RPM problem
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I have a 2003 4-cyl. Was running OK til starter died. Changed the starter, now it starts fine, but has idle problems similar to a dirty IAC. Sounds a lot like this thread: Low idle rpm problem on 2003 Toyota Camry: How I solved it
Haven't tried that fix yet. I was wondering if there anything else I could consider, due maybe to disconnecting the battery causing computer problems or something like that?
So I decided to run it for a while, thinking maybe the computer needed some more data. Idling about 100, but driving OK (around the block) but definitely not right.
Then the check engine light came on; I need to pull the code of course but need to borrow a code reader.....
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2003 Toyota Camry LE 4 cylinder
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I hear it a little bit when I am going like 15-20 MPH in reverse and let off the gas to decelerate. There is a noticeable noise increase just at idle too. I checked and all fluid levels are good. I changed the tranny fluid about a month ago and according to the dipstick it is right on where it should be. The sound is increasing and I am worried about what it may be. It sounds as if it has an exhaust leak but I do not see anything.
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The car runs okay now but I am concerned as to whether this could be a sign of things to come. Should I take my car in the get the starter looked at or maybe replaced? The dealer says that a new starter will run me 350 bucks but also said that I don't need to come in unless it happens again. What does the community think? Do I have a problem or was it a one off thing that I can ignore for now? And I don't know if its important or not but the weather here has been starting to get colder lately. Could that be responsible in any way? I have about 81000 miles on this car.
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I got to the mechanic and pulled in the lot. The car died. However, I was able to start it up again with no issues. A day later I get a call from the mechanic telling me that they had no issues starting the car whatsoever. They said the battery was a little weak so they replaced it (it was the original battery). I was also told that I might consider changing the spark plugs in the near future. Otherwise they said the car was running great.
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