2005 Toyota Matrix Engine Idle Problem?

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peabody1794

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I drive a manual Toyota matrix XR and have had a problem with the engine idle for awhile. Usually, when it is cold out, but not always, when I start it up and start to drive it, when I put it in neutral, the RPM's will drop below 1000 and the engine will struggle to stay on, and in one or two instances has actually shut off while I was coasting to a light.

I have tried fuel injector cleaner, and using premium gas, but nothing works. It is usually when it is really cold out, and the RPM's go up to 2000 to warm up the engine, but as I start driving dip below 1000 and struggle.

Has anyone had similar issues with this or know what I should do?
 
With a hot engine, your idle RPM should be about 750 RPM in neutral or in drive. On a cold start, it is over 1,000 RPM, but then should go down to 750 RPM as it warms up. You definitely have a problem and it could be a vacuum leak or other unmetered air entering the engine. Also check your engine coolant temperature sensor.

http://www.autozone.com/az/cds/en_us/0900823d/80/04/f5/ac/0900823d8004f5ac/repairInfoPages.htm

http://www.aa1car.com/library/vacleak.htm

http://www.edmunds.com/maintenance/MaintenanceServlet

http://www.mycarstats.com/
 
With a hot engine, your idle RPM should be about 750 RPM in neutral or in drive. On a cold start, it is over 1,000 RPM, but then should go down to 750 RPM as it warms up. You definitely have a problem and it could be a vacuum leak or other unmetered air entering the engine. Also check your engine coolant temperature sensor.

http://www.autozone.com/az/cds/en_us/0900823d/80/04/f5/ac/0900823d8004f5ac/repairInfoPages.htm

http://www.aa1car.com/library/vacleak.htm

http://www.edmunds.com/maintenance/MaintenanceServlet

http://www.mycarstats.com/
 
With a hot engine, your idle RPM should be about 750 RPM in neutral or in drive. On a cold start, it is over 1,000 RPM, but then should go down to 750 RPM as it warms up. You definitely have a problem and it could be a vacuum leak or other unmetered air entering the engine. Also check your engine coolant temperature sensor.

http://www.autozone.com/az/cds/en_us/0900823d/80/04/f5/ac/0900823d8004f5ac/repairInfoPages.htm

http://www.aa1car.com/library/vacleak.htm

http://www.edmunds.com/maintenance/MaintenanceServlet

http://www.mycarstats.com/
 
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