Low idle speed when cold?
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Mountain Pass
Joined: Oct 2009
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Low idle speed when cold?
OK, got an odd one here. When I start my truck the idle is around 600 rpm even after I tap the throttle and the "cold solenoid" follows the throttle lever up. As it warms up over a five minute or so period the idle comes up to around 750 or so. Any Ideas?
Thanks,
V-465
Thanks,
V-465
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
When it's really cold mine idles around 600 as well, sounds under load to, I think it's cause the oil is really thick and puts drag on the engine till everything starts warming up.
750 is the normal idle. High idle is 900rpm.
So you're High Idle doesn't work.
Probably your sensor is dead, and it's a 2 prong sensor right on top of the passenger side head, very front under your Alternator.
750 is the normal idle. High idle is 900rpm.
So you're High Idle doesn't work.
Probably your sensor is dead, and it's a 2 prong sensor right on top of the passenger side head, very front under your Alternator.
Thread Starter
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Mountain Pass
Joined: Oct 2009
Posts: 167
Likes: 0
The high idle system is working electrically as I can see the solenoid has extended. Thing is, it has fully extended and the throttle lever on the pump is a 1/4" up/away from the shaft that extends out of the solenoid.
V-465
V-465
Postmaster
Joined: Dec 2011
Posts: 3,860
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You may also need to loosen the two 1/4-20 bolts holding the solenoid plate in place and just rotate it forward a bit; there's a /lot/ of slop around those bolts.
More Turbo
Joined: Nov 2014
Posts: 618
Likes: 7
When it's really cold mine idles around 600 as well, sounds under load to, I think it's cause the oil is really thick and puts drag on the engine till everything starts warming up.
750 is the normal idle. High idle is 900rpm.
So you're High Idle doesn't work.
Probably your sensor is dead, and it's a 2 prong sensor right on top of the passenger side head, very front under your Alternator.
750 is the normal idle. High idle is 900rpm.
So you're High Idle doesn't work.
Probably your sensor is dead, and it's a 2 prong sensor right on top of the passenger side head, very front under your Alternator.
http://www.amazon.com/dp/B0042KYF50?tag=viglink20433-20
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