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Transmission temperature dash gauge versus Aladdin temperature reading?
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Topic: Transmission temperature dash gauge versus Aladdin temperature reading? (Read 2339 times)
Rick Vyncke
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Posts: 124
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Transmission temperature dash gauge versus Aladdin temperature reading?
«
on:
August 15, 2019, 08:47:15 PM »
Traveled this past week in our 2004 Beaver Marquis (42,000 lbs) towing a large boat (8,500 lbs) through the Rocky Mountains in hot and dry weather. There are two options for viewing the Allison transmission temperature: 1) the dash gauge indicated the temperature got up to a high of about 220. 2) The Aladdin system indicated a high of about 240. The engine was running between 185-205.
The high temps were not sustained over a long period and were seen (as expected) when climbing mountain passes and/or descending the same. Most posts indicate that there is nothing to worry about until 250+. Assuming that is true I should be OK... except that's getting a bit close to the danger zone for me.
I've read numerous posts here about transmission temperatures and so I won't ask to rehash that. My question is... which reading do I trust? Is the dash gauge more accurate than the Aladdin system or vice versa? There is a 20 degree difference between the two on the high end. I suspect I'll have to take into shop where they can test the temperatures to find out which one is accurate and which is not. Are there different sensors for each or are they both working from the same sensor?
Thanks
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Rick V
2004 Beaver Marquis, Garnet (3 slides)
43'
C12
David T. Richelderfer
David, Leslie, Jasper, & JoJo
BAC Member
Posts: 1682
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OSU, Class of 1971, RVing nearly 50 years
Re: Transmission temperature dash gauge versus Aladdin temperature reading?
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Reply #1 on:
August 15, 2019, 09:08:16 PM »
http://beaveramb.org/forum/index.php/topic,127.msg460.html#msg460
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2004 Beaver Marquis Sapphire
I had a dream... then I lived it!
The following users thanked this post:
Rick Vyncke
Mike Shumack
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Re: Transmission temperature dash gauge versus Aladdin temperature reading?
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Reply #2 on:
August 15, 2019, 10:38:10 PM »
Yes, like the other thread said, the Aladdin uses the temperature gauge built into the transmission, the dash gauge uses an aftermarket sending unit screwed into the large cooler line coming off tranny running to transmission cooler.
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Transmission temperature dash gauge versus Aladdin temperature reading?