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  #16  
Old 05-12-2007, 11:01 PM
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does this have any connection to the temg sender,I noticed tonight that it went up to 80 C and then back down to 40C in 84 degree heat running at idle for 25 minutes
I have 7.5 v at the single plug is this correct?
I cannot get continuity through the other two no matter how hot the car gets, is it linked to another circuit?
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  #17  
Old 05-13-2007, 12:08 PM
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Are you stating that the aux. fans are not operating when the A/C is on?

If so, have you checked the aux. fan switch at the A/C receiver/dryer? There are 2 switches on the dryer, one for the freon pressure to shut off the compressor if the high pressure gets too high, and one for the aux. fans (this is the one with the pigtail). This one could be the one that is not turning on the aux. fan when the A/C is on.

Keep in mind that the aux. fan serves 2 purposes...
1. to cool the radiator when needed.
2. to cool the A/C condensor.
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  #18  
Old 05-13-2007, 12:10 PM
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Quote:
Originally Posted by meltedpanda View Post
does this have any connection to the temg sender,I noticed tonight that it went up to 80 C and then back down to 40C in 84 degree heat running at idle for 25 minutes
Are you sure it went back down to 40C? A properly functioning thermostat should not allow that.
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  #19  
Old 05-13-2007, 12:51 PM
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Are you stating that the aux. fans are not operating when the A/C is on?



the aux fan only comes on if I short it out, will not run otherwise, with AC on or OFF, is there a way to check the other switches, and can the temp gauge sender have a part in this whole isue? THanks guys
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99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
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  #20  
Old 05-13-2007, 02:24 PM
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Quote:
Originally Posted by meltedpanda View Post
Are you stating that the aux. fans are not operating when the A/C is on?



the aux fan only comes on if I short it out, will not run otherwise, with AC on or OFF, is there a way to check the other switches, and can the temp gauge sender have a part in this whole isue? THanks guys
Sure, just short the 2 wires at the dryer switch to see if the aux. fan operates like you did at the temp. switch.
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  #21  
Old 05-13-2007, 10:01 PM
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does not come on with shorting the two pigtails together on the drier - should it just run ? , Hmmm what could that mean?There is another switch of sorts there as well, kinda in front and to the left of the drier, two clip on type connections
temp gauge is irradic, but does not seem to have much effect on this whole deal
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Ron
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace

Last edited by meltedpanda; 05-13-2007 at 10:08 PM.
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  #22  
Old 05-13-2007, 10:12 PM
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I assume you are jumping the pigtail wires while they are still plugged into the sensor...and you hav the key ON
If so, then first check is fuse for low fan and the second look see is the wires at the dropping resistor.
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  #23  
Old 05-14-2007, 11:17 AM
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Wow

If I told you , you probably won't believe me.After going through all the test you guys told me and consulting with an AC guy, I decided that all the components of the AC system including the fans were good. Sooooo I looked for a short or an intemitent connection and I found it - shorted out wire to the electric nozzels for the winshield, on the same circuit as the aux fan, rewired - all working now - thanks - I still have irradic temp guage readings - any ideas - dare I ask
Thanks again
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Ron
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
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