What Might Cause The Transmission To.....
What Might Cause The Transmission To.....
Overheat?
I posted a similar post about this a little while back and since then I have changed the transmission filter which was in horrible shape. Hoping that would fix my problem. It seems to have helped but after a extended period the red light on the dashboard will still come on.
I don't really want answers like 'Take it to a transmission shop' or things like that. I want advice on what to check and look for that might be causing my problem.
Thanks-
I posted a similar post about this a little while back and since then I have changed the transmission filter which was in horrible shape. Hoping that would fix my problem. It seems to have helped but after a extended period the red light on the dashboard will still come on.
I don't really want answers like 'Take it to a transmission shop' or things like that. I want advice on what to check and look for that might be causing my problem.
Thanks-
RE: What Might Cause The Transmission To.....
Take it to a shop and have them check the trans temp sending unit.
Sorry, I couldnt resist.
The wiring to the trans temp sending unit can get cooked and send a bad signal.
That is where I would start.
Sorry, I couldnt resist.
The wiring to the trans temp sending unit can get cooked and send a bad signal.
That is where I would start.
Three Wheeling
Joined: Nov 2008
Posts: 65
Likes: 19
From: TEXAS
RE: What Might Cause The Transmission To.....
Well We drove around until the Temp light came on tonight...stopped got out and used my DMM with temp probe to check the temp of the transmission pan (in a couple different places). The highest reading we got was 55*C which is 131*F. now I realize the pan will read lower than the actual fluid...so say we go crazy stupid and ad 30*C to that to make it 85*C that is still only 185*F. Chris mentioned that he was told as long as the temp isn't over 121*C (249.8*F) that the tranny is most likely fine and to look at other suspect things...At this point I am leaning toward what you said spike about it being the Tempurature Sending unit (Sensor) that is bad.
Anyone else have any input to add?
Anyone else have any input to add?
RE: What Might Cause The Transmission To.....
ORIGINAL: JEFFSGTP
Well We drove around until the Temp light came on tonight...stopped got out and used my DMM with temp probe to check the temp of the transmission pan (in a couple different places). The highest reading we got was 55*C which is 131*F. now I realize the pan will read lower than the actual fluid...so say we go crazy stupid and ad 30*C to that to make it 85*C that is still only 185*F. Chris mentioned that he was told as long as the temp isn't over 121*C (249.8*F) that the tranny is most likely fine and to look at other suspect things...At this point I am leaning toward what you said spike about it being the Tempurature Sending unit (Sensor) that is bad.
Anyone else have any input to add?
Well We drove around until the Temp light came on tonight...stopped got out and used my DMM with temp probe to check the temp of the transmission pan (in a couple different places). The highest reading we got was 55*C which is 131*F. now I realize the pan will read lower than the actual fluid...so say we go crazy stupid and ad 30*C to that to make it 85*C that is still only 185*F. Chris mentioned that he was told as long as the temp isn't over 121*C (249.8*F) that the tranny is most likely fine and to look at other suspect things...At this point I am leaning toward what you said spike about it being the Tempurature Sending unit (Sensor) that is bad.
Anyone else have any input to add?
Three Wheeling
Joined: Nov 2008
Posts: 65
Likes: 19
From: TEXAS
RE: What Might Cause The Transmission To.....
Not to piggyback again but the highest reading we got was at the end of that time frame. we started checking right after we stopped. The highest reading came from placing the probe inside the drain plug...theoretically I think that should be the most accurate as the plug does stick up in the pan allowing more surface area for the fluid to contact...that combined with using the inside of the plug shielding it from cross wind (breeze) running under the truck. Oh and relative outside tempurature was 55*F.
Administrator
Joined: Apr 2006
Posts: 25,707
Likes: 107
From: Denver, Colorado
RE: What Might Cause The Transmission To.....
If you want to find out for sure, get a tranny shop to plug in a read all the tranny functions as well as the temp, and don't tell us how you don't want to go have someone who knows what they are doing check/fix it. It has been 3 days and you are no closer to a fix.
RE: What Might Cause The Transmission To.....
No, actually it's been like this since August, and we're quite capable of doing whatever needs to be done to fix the problem on our own. It is'nt like we hav'nt rebuilt a transmission before.
Administrator
Joined: Apr 2006
Posts: 25,707
Likes: 107
From: Denver, Colorado
RE: What Might Cause The Transmission To.....
ORIGINAL: Street Wolf
No, actually it's been like this since August, and we're quite capable of doing whatever needs to be done to fix the problem on our own. It is'nt like we hav'nt rebuilt a transmission before.
No, actually it's been like this since August, and we're quite capable of doing whatever needs to be done to fix the problem on our own. It is'nt like we hav'nt rebuilt a transmission before.
Not sure what your experience with ZF trannies is but by your question you sound very limited with your knowledge of how to trouble shoot/repair your problem.
If you know what you are doing, why so many questions??
Three Wheeling
Joined: Nov 2008
Posts: 65
Likes: 19
From: TEXAS
RE: What Might Cause The Transmission To.....
Our experience with GM vehicles, engines and trannies is extensive...an auto trans is an auto trans when it comes to tear down and rebuild of the mechanicals...and we are more than capable of doing that. WHAT ISN'T the same is how each manufacturer does the electronics side of things...I.E. trouble shooting etc. We come on to a forum for brainstorming and all you people want to do is say take it to a trannyshop...well since the nearest dealership or shop that works on L.R. trannies is DALLAS...ITS NOT GOING TO HAPPEN!!! Seariously how do you people mod these things or fix them yourselves....or maybe all of you make **** tons of money and can afford to take every little issue to the dealer.
Thanks for all the help
...you've been great Mike[:'(][:'(][:'(]
Thanks for all the help
...you've been great Mike[:'(][:'(][:'(]
TReK
Joined: Nov 2008
Posts: 2,081
Likes: 4
From: Kirkland,WA
RE: What Might Cause The Transmission To.....
ORIGINAL: JEFFSGTP
Our experience with GM vehicles, engines and trannies is extensive...an auto trans is an auto trans when it comes to tear down and rebuild of the mechanicals...and we are more than capable of doing that. WHAT ISN'T the same is how each manufacturer does the electronics side of things...I.E. trouble shooting etc. We come on to a forum for brainstorming and all you people want to do is say take it to a trannyshop...well since the nearest dealership or shop that works on L.R. trannies is DALLAS...ITS NOT GOING TO HAPPEN!!! Seariously how do you people mod these things or fix them yourselves....or maybe all of you make **** tons of money and can afford to take every little issue to the dealer.
Thanks for all the help...you've been great Mike[:'(][:'(][:'(]
Our experience with GM vehicles, engines and trannies is extensive...an auto trans is an auto trans when it comes to tear down and rebuild of the mechanicals...and we are more than capable of doing that. WHAT ISN'T the same is how each manufacturer does the electronics side of things...I.E. trouble shooting etc. We come on to a forum for brainstorming and all you people want to do is say take it to a trannyshop...well since the nearest dealership or shop that works on L.R. trannies is DALLAS...ITS NOT GOING TO HAPPEN!!! Seariously how do you people mod these things or fix them yourselves....or maybe all of you make **** tons of money and can afford to take every little issue to the dealer.
Thanks for all the help
...you've been great Mike[:'(][:'(][:'(]
what do you mean by "all you people"???