PCM Settings for Cooling Fans On/Off vs Temps?
08-31-2003, 06:31 PM
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PCM Settings for Cooling Fans On/Off vs Temps? Hi, I was wondering if anyone can tell me what the turn on/turn off temps for the engine cooling fans are?
Do they change depending on if the A/C compressor is on?
Is the speed of the fans dependent on the vehicle MPH?
Is one fan a high speed and the other low speed?
Thanks!
Do they change depending on if the A/C compressor is on?
Is the speed of the fans dependent on the vehicle MPH?
Is one fan a high speed and the other low speed?
Thanks!
09-02-2003, 11:24 AM
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Re: PCM Settings for Cooling Fans On/Off vs Temps? Keep in mind the 160 stat runs a tad warmer than the advertised temp rating. My engine actually runs 178 degs all the time, so if my fans were set to turn off at 175, well , they never would.
I think each truck/car needs to be logged and find out where your normal driving temp is.
If the ac is turned on, i believe both fans come on.
I guess the fans are dependent on the vehicle mph, becuase if you're going slow, your engine will heat up, then they'll come on, hehehe.
Not sure on the hi/low fans, i know they spin low and hi, i'm not sure if one is always the low one and the other is the hi one.
btw, thanks Hitman,
later,
allen
I think each truck/car needs to be logged and find out where your normal driving temp is.
If the ac is turned on, i believe both fans come on.
I guess the fans are dependent on the vehicle mph, becuase if you're going slow, your engine will heat up, then they'll come on, hehehe.
Not sure on the hi/low fans, i know they spin low and hi, i'm not sure if one is always the low one and the other is the hi one.
btw, thanks Hitman,
later,
allen
09-02-2003, 03:53 PM
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Re: PCM Settings for Cooling Fans On/Off vs Temps? The fans are wired in series through relays on the low speed mode. In the high speed mode, they are switched to parallel wiring by the relays. On low speed they run on 6 volts, on high speed they run on 12 volts.
09-02-2003, 04:28 PM
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Re: PCM Settings for Cooling Fans On/Off vs Temps?
Keep in mind the 160 stat runs a tad warmer than the advertised temp rating. My engine actually runs 178 degs all the time, so if my fans were set to turn off at 175, well , they never would.
I think each truck/car needs to be logged and find out where your normal driving temp is.
If the ac is turned on, i believe both fans come on.
I guess the fans are dependent on the vehicle mph, becuase if you're going slow, your engine will heat up, then they'll come on, hehehe.
Not sure on the hi/low fans, i know they spin low and hi, i'm not sure if one is always the low one and the other is the hi one.
btw, thanks Hitman,
later,
allen
I think each truck/car needs to be logged and find out where your normal driving temp is.
If the ac is turned on, i believe both fans come on.
I guess the fans are dependent on the vehicle mph, becuase if you're going slow, your engine will heat up, then they'll come on, hehehe.
Not sure on the hi/low fans, i know they spin low and hi, i'm not sure if one is always the low one and the other is the hi one.
btw, thanks Hitman,
later,
allen
Thanks guys!