What Should the Idle Speed Be? - Toyota Tundra Forums : Tundra Solutions Forum
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post #1 of 6 (permalink) Old 01-17-2019, 01:30 PM Thread Starter
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What Should the Idle Speed Be?

I have a 2004 SR5 DC Tundra with the 4.7L engine which appears to be running fine.

No DTC's. It has 210K miles.

MPG is about 13-14 city/ 16-17 Highway.

Engine runs smooth and powerful. Motor seems to be in good tune in all aspects.

I guess I should be content but I notice my idle speed with a fully warmed engine & transmission in "D" is 800 RPM. That seems a bit high to me.

Sometimes when I give it a bit of gas, I get too much of a response.

Almost to the extent that the Tundra seems to be lurching.

I only own the Tundra since early December.

From what I've read, the idle speed is controlled by the Tundra's computer so I might not be able to tweak the idle down to say 600 rpm.
What should the idle speed be and is there a way to adjust?
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post #2 of 6 (permalink) Old 01-17-2019, 01:36 PM Thread Starter
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Re: What Should the Idle Speed Be?

By the way, I cleaned the MAF sensor with a spray MAF cleaner and also cleaned the throttle body with an appropriate cleaner.

Prior to cleaning the TB, the engine was idle was surging a bit. Since the cleaning it hasn't been surging.
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post #3 of 6 (permalink) Old 01-17-2019, 05:02 PM
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Re: What Should the Idle Speed Be?

Is your A/C on? It will run a couple hundred high if the compressor is on. Iím not sure where mine runs off the top of my head, as I donít drive it all the much anymore.


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post #4 of 6 (permalink) Old 01-17-2019, 07:02 PM Thread Starter
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Re: What Should the Idle Speed Be?

A/C is off. Also, air filter replaced recently.
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post #5 of 6 (permalink) Old 01-18-2019, 02:48 PM Thread Starter
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Re: What Should the Idle Speed Be?

Seems like idle adjusted to about 550 after I followed a reprogramming procedure I found on YouTube.
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post #6 of 6 (permalink) Old 01-18-2019, 07:01 PM
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Re: What Should the Idle Speed Be?

Idle, in drive, no A/C. 2001 4.7




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