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  #1  
Old 12-21-2010, 05:25 PM
dcsaeger dcsaeger is offline
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Default Idles funny when Heater is on

Hi. I've been searching for a resolution to my issue so if i'm duplicating threads I apologize. I didn't find anything so I decided to start a new thread. I just recently bought a 2000 Ford Ranger XLT Ext-Cab and when the heater is anywhere but the "OFF" position, it idles weird. it's almost something you can "time". It will idle, than appears to idle up for a brief moment than back down. I've started to notice it also when I drive too. Anyone have this issue and if so, how'd you fix it.
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Old 12-21-2010, 05:41 PM
jacobxstanley jacobxstanley is offline
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Default Re: Idles funny when Heater is on

my boss' ranger will do that, its odd. itll seem to get low, then for a second jump up, then calm back down, and do it again.
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Old 12-21-2010, 05:48 PM
shizzle8787 shizzle8787 is offline
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Default Re: Idles funny when Heater is on

Probably the a/c compressor turning on and off.Makes ur truck idle up when it turns on.I know It runs with the defrost.
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Old 12-21-2010, 05:53 PM
terryduanemiller terryduanemiller is offline
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Default Re: Idles funny when Heater is on

how far does it idle up?
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Old 12-21-2010, 05:58 PM
Clinton Clinton is offline
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Default Re: Idles funny when Heater is on

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Originally Posted by shizzle8787 View Post
Probably the a/c compressor turning on and off.Makes ur truck idle up when it turns on.I know It runs with the defrost.
X2
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  #6  
Old 12-21-2010, 06:00 PM
shizzle8787 shizzle8787 is offline
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Default Re: Idles funny when Heater is on

If you wanna run ur heat without the compressor turning on just select the front vents only.
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Old 12-21-2010, 11:26 PM
dcsaeger dcsaeger is offline
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Default Re: Idles funny when Heater is on

how do you stop it? I can't defrost my windows with the vents...lol. And it seems to be effecting things when I drive too. I can tell the difference if I leave it off when I'm driving.
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Old 12-22-2010, 08:05 AM
satan satan is offline
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Default Re: Idles funny when Heater is on

You can unplug the A/C compressor... As posted - the A/C will cycle in all HVAC modes except for the dash-vent without regard for the temperature setting.
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Old 03-07-2013, 05:22 PM
sniper69714 sniper69714 is offline
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Default Re: Idles funny when Heater is on

I have the exact same problem and I would like to fix it, I know its the A/C compressor that is causing the issue but I cant figure out why it is causing the issue. Unplugging the compressor is not really a fix, its more of a band aid until summer.

Anyone have ideas or theory's why the engine would start over compensating for the compressor? It was fine until a few months ago.

Cheers
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