Fast Idle At Startup.
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4wd Low
Joined: Aug 2008
Posts: 11
Likes: 1
Fast Idle At Startup.
2017/5.0 All of a sudden I have a problem when at startup the idle will shoot up to 2300 RPM, hang there a few seconds, then slowly drop down.
The usual would be that it goes up to 1200/1300 RPM. Outside temp has been in the 20/30s .First start while cold. Is there a sensor dirty/going bad ?
This freaks me out when it jumps up like that and you know the engine is cold and all of the oil is in the pan. Thanks.
The usual would be that it goes up to 1200/1300 RPM. Outside temp has been in the 20/30s .First start while cold. Is there a sensor dirty/going bad ?
This freaks me out when it jumps up like that and you know the engine is cold and all of the oil is in the pan. Thanks.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
My '17 does the exact same thing. AFA all the oil being in the pan, it's never going to happen. There is always a film of oil on the rotating parts inside the motor, even when it's been sitting for a while. If you have doubts, get ahold of a junkyard motor and tear it down to see how much oil is still in the rotating assembly. It's a lot more than you think.
Tuned
Joined: Jan 2015
Posts: 472
Likes: 153
From: Southeast Wisconsin
2017/5.0 All of a sudden I have a problem when at startup the idle will shoot up to 2300 RPM, hang there a few seconds, then slowly drop down.
The usual would be that it goes up to 1200/1300 RPM. Outside temp has been in the 20/30s .First start while cold. Is there a sensor dirty/going bad ?
This freaks me out when it jumps up like that and you know the engine is cold and all of the oil is in the pan. Thanks.
The usual would be that it goes up to 1200/1300 RPM. Outside temp has been in the 20/30s .First start while cold. Is there a sensor dirty/going bad ?
This freaks me out when it jumps up like that and you know the engine is cold and all of the oil is in the pan. Thanks.
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