Throttle body operation question
Sep 13, 2013 | 12:11 PM
#1
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Joined: Mar 2012
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From: Houston, tx
Throttle body operation question
2002 4runner sr5 4x4 throttle body....
took it off to clean (which it really needs)
1: should there be almost 90 degrees of rotation before the plate starts to move?
2: Is it supposed to not open all the way? here is the video....
http://www.youtube.com/watch?v=6p0ls...ature=youtu.be
any info helps, thank you.
took it off to clean (which it really needs)
1: should there be almost 90 degrees of rotation before the plate starts to move?
2: Is it supposed to not open all the way? here is the video....
http://www.youtube.com/watch?v=6p0ls...ature=youtu.be
any info helps, thank you.
Sep 13, 2013 | 01:19 PM
#2
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Joined: Sep 2011
Posts: 608
Likes: 1
That is the fail safe operation. Its normal. The butterfly is actually operated by an electric motor, not the cable. In the event of a throttle motor actuator failure, you can still get 1/4 throttle to get home or safely off the road
Sep 13, 2013 | 01:30 PM
#3
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Registered User
Joined: Mar 2012
Posts: 53
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From: Houston, tx
ah, I see, thank you. I must be blind but I didnt see that info in my tech manual. oh well.
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