Posts: 5,908
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The gauge on the dash for trans temp has a sensor in the bottom outlet of the trans cooler. The trans cooler is an integral part of the radiator on your coach. Open the hatch, look at lower left at bottom of radiator.
Are the temps you are quoting coming from the VDO gauge on the dash, OR a digital signal feeding a VMSPC, Bluefire, or Scangauge?
The digital temp will come from a sensor in the transmission.
The cooler in the space above the rear axle is for hydraulics.
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)
Posts: 718
Threads: 35
Joined: Jun 2023
(Yesterday, 03:31 PM)Richard Wrote: The gauge on the dash for trans temp has a sensor in the bottom outlet of the trans cooler. The trans cooler is an integral part of the radiator on your coach. Open the hatch, look at lower left at bottom of radiator.
Are the temps you are quoting coming from the VDO gauge on the dash, OR a digital signal feeding a VMSPC, Bluefire, or Scangauge?
The digital temp will come from a sensor in the transmission.
The cooler in the space above the rear axle is for hydraulics.
Thanks for clarifying Richard, just have not spent enough time under mine tracing the lines to see what was going to what.
Not to get too far off topic but do you know what controls the fans on the hydraulic cooler? Is it the temp sensor in the hydraulic tank?
I will have to look at mine to see where the transmission cooler lines are running.
Jeff LoGiudice
Temple Terrace, Fl & Loudon & Monterey, TN
1984 Bluebird Wanderlodge PT40
1998 Newell 2000 #490
1986 MCI/TMC 102A3 (sold)
Posts: 5,908
Threads: 266
Joined: Jul 2012
Jeff , I do NOT know what turns the hyd fans on and off.
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)
Posts: 718
Threads: 35
Joined: Jun 2023
(Yesterday, 04:32 PM)Richard Wrote: Jeff , I do NOT know what turns the hyd fans on and off.
10-4, I will have to go hunting. Just want to make sure they are working.
Jeff LoGiudice
Temple Terrace, Fl & Loudon & Monterey, TN
1984 Bluebird Wanderlodge PT40
1998 Newell 2000 #490
1986 MCI/TMC 102A3 (sold)
Posts: 175
Threads: 11
Joined: May 2017
(Yesterday, 03:31 PM)Richard Wrote: The gauge on the dash for trans temp has a sensor in the bottom outlet of the trans cooler. The trans cooler is an integral part of the radiator on your coach. Open the hatch, look at lower left at bottom of radiator.
Are the temps you are quoting coming from the VDO gauge on the dash, OR a digital signal feeding a VMSPC, Bluefire, or Scangauge?
The digital temp will come from a sensor in the transmission.
The cooler in the space above the rear axle is for hydraulics.
Hi Richard. Those numbers are coming from the BlueFire.
Dennis White
1997 Newell Coach 454
Canfield OH
Posts: 5,908
Threads: 266
Joined: Jul 2012
Dennis have you changed filters and replaced fluid with new transynd? If not that would be my first move.
I typically would trust a digital input but since you asked where the sensor was located I might infer you don’t trust the sensor. Easy enough to shoot the upper inlet pipe to the cooler with an IR gun to cross check
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)
(This post was last modified:
3 hours ago by
Richard.)
