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> I have been trying to trouble shoot a one event over temp problem on > my 04 Intrigue. Hit 224 degrees over LaVeta Pass on a 87 degree

Unfortunately I have limited knowledge of the fan operation. It > seems that it should idle until a certain temp before it engages at

high speed. I don't know what that temp is but probably around

Haven't been able to reach that temp in a static situation so I

tell for sure if it comes on at the right time (temp). It does, > however, come on when the AC is turned on so we know it works in

r />]
George, Dick

I have the Cummins ISL 400. George, unlike an auto whereby you would normally turn off the AC to relieve engine load and thus gain cooling, on our rigs turning the AC on will initiate the high speed on the fan.
So, that explains why you dropped to 187 or so when you turned the AC on. I learned from CC today that RPM is also a trigger point and that it is programable. So, if the RPM is set too high and you are pulling up a steep grade and can't reach that RPM level comfortably the fan may not come on. We will be going to the Oregon rally and have the RPM level checked there and if too high we will have it reset to a lower RPM to turn the fan on sooner. Thanks to both of you for the input.
Lyle

04 Intrigue 11740

Quote from: gchertz@a...

Gordon,

Thanks, all input is valuable. I would have been happy with 185 instead of 224.

Lyle Wetherholt
Intrigue 11740

I also have the Cummins ISL 400 but had just the opposite problem.
The engine

wouldn't heat up. From Minnesota to Oregon never got over 185deg. They > reprogramed the fan controller and it has been working fine. Just a thought. Maybe
not related.

Gordon & Fay Hertz

03 Intrigue First Avenue

[quote author=Dick Bradley

George, Dick

I have the Cummins ISL 400. George, unlike an auto whereby you would > normally turn off the AC to relieve engine load and thus gain cooling, > on our rigs turning the AC on will initiate the high speed on the fan.
 So, that explains why you dropped to 187 or so when you turned the AC > on. I learned from CC today that RPM is also a trigger point and that > it is programable. So, if the RPM is set too high and you are pulling > up a steep grade and can't reach that RPM level comfortably the fan > may not come on. We will be going to the Oregon rally and have the > RPM level checked there and if too high we will have it reset to a > lower RPM to turn the fan on sooner. Thanks to both of you for the

Lyle

04 Intrigue 11740

> Do you gents have C-13s? If so, have you had the cooling mods done? > >

> D Bradley

> 04 Intrigue 11830
>
>
>

> At 5:34 PM +0000 8/17/05, George Sanders wrote: > > >Lyle, as I understand my wiring diagram there are three events that > > >can trigger the high fan speed.
> >1. Coolant temperature.

> >2. Transmission fluid temperature > > >3. Chassis Air Conditioner condenser temperature > > >

> >I don't know the trigger point for any of them but I find it > > >interesting that I have just had the same problem that you describe > > >and in the same location. I crossed LaVeta pass on August 5th just > > >after a thunderstorm. The temp had cooled to about 70 so I turned > > >the dash air to vent from A/C. I noticed the coolant temps were > > >getting higher than normal....at one time reaching 215 where I > > >normaly do not exceed 202. The next morning crossing Kansas at about > > >70 degrees I saw that the coolant temp ran from a low of 199 to a > > >high of 215 where normal for me had been 191 to 202. Turned the A/C > > >on and sure enough temps came down to range 187-195.
> >

> >I don't know what I learned from this except that I suspect the > > >coolant temp trigger switch for the fan may be going bad.
> >

> >Lyle, I know I havn't answered your question. I have simply restated > > >from the perspective of my similar experience. I hope that someone > > >else may have an answer that can guide both of us.
> >

> >George Sanders
> >'04 Allure 31038
> >
> >

[quote author=Lyle Wetherholt"
> >]
> >> I have been trying to trouble shoot a one event over temp

>> my 04 Intrigue. Hit 224 degrees over LaVeta Pass on a 87 degree > > >day.

> >> Unfortunately I have limited knowledge of the fan operation. It > > >> seems that it should idle until a certain temp before it

>a

> >> high speed. I don't know what that temp is but probably around > > >205.

> >> Haven't been able to reach that temp in a static situation so I > > >can't

> >> tell for sure if it comes on at the right time (temp). It does, > > >> however, come on when the AC is turned on so we know it works in > > >that

> >> mode just as it should. So, any ideas? Is the fan a two speed

>> variable speed. I know it is somewhat variable with engine RPM > > >> (therefore hydraulic flow) but is it supposed to have a fixed low > > >> speed and a high speed. And, finally, when it does go to high

]
40'allure 2004 CCI 5526

From the get go I had heat problems with trany and coolant

[quote author=CARL NIELSEN

>

> 40'allure 2004 CCI 5526

> From the get go I had heat problems with trany and coolant > running over 200 constantly. In 2005 at home coming saw a fellow

had put a screen in back engine access door. Got Rutherford to get

one as is used on Inspire [ I believe]. Was no problem to install.
Since my temps stay below 200 even climbing the Cahon Pass on Rte

the one out of Palm springs on Rte 10. My wife likes it now as her > closet is not near as hot. Should you like to see a picture let me > know...............Carl
>
Carl,

I would like to see the picture of the screen. I have an inspire 06

cat. engine and it runs close to 200 degrees and over. What kind

screen is it and how does it help with the cooling? My email

40'allure 2004 CCI 5526

> From the get go I had heat problems with trany and coolant