fast idle
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New User
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fast idle
Is there any purpose to the fast idle solenoid other than to make the engine warm up faster? I'm thinking of disconnecting the solenoid, because I don't like it wasting fuel at a stoplight and fighting against the brakes. I don't even have trouble starting the engine with the solenoid disengaged, even in freezing weather. I just don't want to disable it, and then find out too late that there's some important reason for it to idle fast!
Post Fiend
Joined: Nov 2004
Posts: 5,638
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From: Manitoba
How soon after start do you arrive at a stoplight on a cold day. I do not see it wasting fuel but saving your engine from "wet stacking"....google those two. Instead of disconnecting completely think about a switch in place of the engine temp switch. You do realize you will loose IP timing advance and Fast idle which could affect your starts.
Cargo Master
Joined: Nov 2003
Posts: 2,585
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From: Duluth, Mn.
You should prolly wait for the poor thing to warm at least till the solinoid is off, before driving it.
Heck, your wife doesn't throw you out without your pants on, and a hot cup , in the morning, does she?
On a side note, the advance is independant of the cold start solinoid. Advance solinoid is inside the IP.
Heck, your wife doesn't throw you out without your pants on, and a hot cup , in the morning, does she?
On a side note, the advance is independant of the cold start solinoid. Advance solinoid is inside the IP.
Post Fiend
Joined: Nov 2004
Posts: 5,638
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From: Manitoba
fonefiddy...... you are correct they are in separate locations on the IP ...BUT the are powered from same wire and operate at the same time. Together they enable good clean fast starts and a faster warmup. One operating without the other does not much good.
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Originally Posted by fonefiddy
You should prolly wait for the poor thing to warm at least till the solinoid is off, before driving it.
Heck, your wife doesn't throw you out without your pants on, and a hot cup , in the morning, does she?
Heck, your wife doesn't throw you out without your pants on, and a hot cup , in the morning, does she?
Cargo Master
Joined: Nov 2003
Posts: 2,585
Likes: 1
From: Duluth, Mn.
If it takes 10-15 minutes to warm, you might want to check your thermostat and fan clutch. It normally only takes mine about 5 minutes, and I live in northern Minnesota. If I use the block heater, it only takes 2-3 minutes.
Use only an OEM thermostat. Either Motorcraft or IH original.
Use only an OEM thermostat. Either Motorcraft or IH original.
Last edited by fonefiddy; Mar 3, 2005 at 06:42 AM.
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