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LX and LXI (Unique Issues) If you have a unique issue with your LX or LXI model coach and it can't be answered in one of the other forums here, then this is where you can list it, WITH THE EXCEPTION OF THOSE ISSUES INVOLVED WITH ANY LAWSUIT.....list your LX and LXI Parts here too.

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  #1  
Old 10-19-2014
Bamagfc Bamagfc is offline
!st bird - September 2014
 
Join Date: May 2014
Location: Bridgeton
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Default Erratic Transmission Temperature Indication

On my first long trip - from St. Joseph MI to Bridgeton NJ I observed very erratic transmission temperature readings. The readings were anywhere from 170 to over 220 but did not always hold steady. I stopped and checked the fluid and added two quarts when I first noticed the temp and went back on the road but I had the same indications for the rest of the trip and the fluid level was stable. Sometimes it would read high and then it would drop down to 170-180 range and hold steady for a couple of hours and then spike back up. Questions - Do you think I have a faulty sensor or am I seeing flow related fluctuations caused by a partially blocked filter or other issues.
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Gary Cranfield & Terry O'Hare
1998 41LXi
Celtic Coach
2000 43 LXi
Blarney Bus
Bridgeton, NJ
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  #2  
Old 10-19-2014
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birds_first birds_first is offline
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An erratic reading on a gauge usually is a good indication there is a faulty ground in the wiring somewhere. I would check and find the sending unit on the transmission to see if it is loose or corroded. Sometimes the gauge itself could develop a faulty solder connection, that happened to me on a retarder temp gauge once, it would swing erratic high, low and sometime no reading at all. I had to replace the gauge to repair my problem; there are two opinions for you
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  #3  
Old 10-19-2014
Bamagfc Bamagfc is offline
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Default Erratic Transmission Temp Indication

Thanks John for the response. I will do some more investigation on the gauge and sensor.
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1998 41LXi
Celtic Coach
2000 43 LXi
Blarney Bus
Bridgeton, NJ
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  #4  
Old 10-19-2014
Bob Johannesen Bob Johannesen is offline
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I just went through the same issue. Had the trans checked at an Allison Dealer (Inland Truck in Dallas) and they agreed with me that it was a sender/instrument problem. They confirmed that when the trans was actually 180 degrees, the guage intermittently indicated 100 degrees higher.

I decided to put a new sender and guage in and bypass the large cannon plugs that have caused other problems in the past. I will also make sure each end is grounded well.

.
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  #5  
Old 10-20-2014
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Mallie Lennon Mallie Lennon is offline
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Gary, a very good reason to invest in the Silverleaf. Gives you the reading the DD computer sees.
Our transmission temp is always about 10f below water temp, engine oil about 10f above water temp.
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  #6  
Old 10-20-2014
markusfmeyer markusfmeyer is offline
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A quick way to find out is using a thermometer gun, aim it at the same spot on the transmission each time so you have a consistent place to get your reading from and see what that tells you.
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  #7  
Old 10-20-2014
Bamagfc Bamagfc is offline
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Quote:
Originally Posted by Mallie Lennon View Post
Gary, a very good reason to invest in the Silverleaf. Gives you the reading the DD computer sees.
Our transmission temp is always about 10f below water temp, engine oil about 10f above water temp.
Thanks Markkus
I have a laser thermometer and will give it a try. I have been looking for a reason to use it.
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Gary Cranfield & Terry O'Hare
1998 41LXi
Celtic Coach
2000 43 LXi
Blarney Bus
Bridgeton, NJ
http://www.bbirdmaps.com/user1.cfm?user=354
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  #8  
Old 10-20-2014
Bamagfc Bamagfc is offline
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Join Date: May 2014
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Quote:
Originally Posted by Mallie Lennon View Post
Gary, a very good reason to invest in the Silverleaf. Gives you the reading the DD computer sees.
Our transmission temp is always about 10f below water temp, engine oil about 10f above water temp.
Thanks Mallie,
I am not familiar with Silverleaf. I will do my homework and check it out.
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Gary Cranfield & Terry O'Hare
1998 41LXi
Celtic Coach
2000 43 LXi
Blarney Bus
Bridgeton, NJ
http://www.bbirdmaps.com/user1.cfm?user=354
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  #9  
Old 10-20-2014
Bamagfc Bamagfc is offline
!st bird - September 2014
 
Join Date: May 2014
Location: Bridgeton
Posts: 87
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Quote:
Originally Posted by Bob Johannesen View Post
I just went through the same issue. Had the trans checked at an Allison Dealer (Inland Truck in Dallas) and they agreed with me that it was a sender/instrument problem. They confirmed that when the trans was actually 180 degrees, the guage intermittently indicated 100 degrees higher.

I decided to put a new sender and guage in and bypass the large cannon plugs that have caused other problems in the past. I will also make sure each end is grounded well.

.
Thanks for the response Bob,
I will do some more checking and see if that is what I need to do.
__________________

Gary Cranfield & Terry O'Hare
1998 41LXi
Celtic Coach
2000 43 LXi
Blarney Bus
Bridgeton, NJ
http://www.bbirdmaps.com/user1.cfm?user=354
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