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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Thu Jan 26, 2023 1:56 pm Post subject: 2002 Eurovan transmission temp issue |
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what would cause high transmission temp? 248 Deg F
flat interstate driving
RPMs are 2750 at 60MPH
New transmission cooler
New oil change (checked level 3 times)
I am at a loss.
Last edited by BayStYat on Fri Jan 27, 2023 7:41 pm; edited 1 time in total |
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MrPulldown Samba Member
Joined: September 08, 2020 Posts: 649 Location: Truckee
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Posted: Thu Jan 26, 2023 5:03 pm Post subject: Re: 2002 Eurovan |
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depends on how mechanically included you are. From what I have read, it basically requires an engine/transmission removal to do. TC don't generally go bad is what I have also read. Bad trans issues are a result of bad valve body, ribbon cable or just a bad trans.
Best of luck. _________________ 2002 EVC |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Fri Jan 27, 2023 1:14 pm Post subject: Re: 2002 Eurovan |
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MrPulldown wrote: |
depends on how mechanically included you are. From what I have read, it basically requires an engine/transmission removal to do. TC don't generally go bad is what I have also read. Bad trans issues are a result of bad valve body, ribbon cable or just a bad trans.
Best of luck. |
Thank you sir for that information. Would you happen to know some of the systems of a bad ribbon cable? My problem is after installing a transmission cooler. My transmission now runs at 245°F. |
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[email protected] Samba Member
Joined: January 03, 2010 Posts: 296 Location: Amesbury, MA
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Posted: Fri Jan 27, 2023 7:54 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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Look to that cooler is there a thermosatic switch in there in between, going the right way? _________________ 2001 eurovn weekender 207k fresh batteries |
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Abscate Samba Member
Joined: October 05, 2014 Posts: 22568 Location: NYC/Upstate/ROW
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Posted: Sat Jan 28, 2023 4:36 am Post subject: Re: 2002 Eurovan transmission temp issue |
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How are you measuring it? Verify the measurement with an ir gun before you dive in _________________ .ssS! |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Sat Jan 28, 2023 5:47 am Post subject: Re: 2002 Eurovan transmission temp issue |
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[email protected] wrote: |
Look to that cooler is there a thermosatic switch in there in between, going the right way? |
no sir. i did not go with the thermostat switch. |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Sat Jan 28, 2023 5:48 am Post subject: Re: 2002 Eurovan transmission temp issue |
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Abscate wrote: |
How are you measuring it? Verify the measurement with an ir gun before you dive in |
I am using the Scan Gauge II.
Ok i did a 40 mile round trip half interstate 65mph. measured with a IR thermostat
pulled over off interstate 171 at the oil pan after 10 miles at 65
120 in the cooler
107 out the cooler
pulled in to the driveway 8 miles off the interstate some stop and go. 198 oil pan
120 in the cooler
101 out the cooler |
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kourt Samba Member
Joined: August 13, 2013 Posts: 1922 Location: Austin, TX
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Posted: Sat Jan 28, 2023 1:04 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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Is your ScanGauge properly programmed for the x-gauge trans temp? The off-the-shelf trans temp in the ScanGauge will overreport the temperature.
See https://www.scangauge.com/x-gauge-commands/vw/ for more info on the special programming codes required for ScanGauge II in the Eurovan application.
kourt |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Sat Jan 28, 2023 1:24 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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kourt wrote: |
Is your ScanGauge properly programmed for the x-gauge trans temp? The off-the-shelf trans temp in the ScanGauge will overreport the temperature.
See https://www.scangauge.com/x-gauge-commands/vw/ for more info on the special programming codes required for ScanGauge II in the Eurovan application.
kourt |
Thank you. I don’t know if it was. I just sent it in to SC for the Eurovan firmware.
I will do that for sure.
Does the temps I got from the IR thermostat sound ok? |
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kourt Samba Member
Joined: August 13, 2013 Posts: 1922 Location: Austin, TX
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Posted: Sat Jan 28, 2023 2:44 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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The temps you list as measured at the cooler seem very low. The trans oil pan temps seem about correct.
It could be that the trans is not getting hot enough for the Derale thermostat to open, which would result in hot ATF going to the cooler in front of the radiator.
I have the GoWesty cooler with the Derale thermostat and my Scangauge 3 indicates a solid 185F temperature when running 75MPH on flat roads on a 70 degree day, and it really never gets above 205F as long as it's not hot outside.
kourt |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Sat Jan 28, 2023 3:02 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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kourt wrote: |
The temps you list as measured at the cooler seem very low. The trans oil pan temps seem about correct.
It could be that the trans is not getting hot enough for the Derale thermostat to open, which would result in hot ATF going to the cooler in front of the radiator.
I have the GoWesty cooler with the Derale thermostat and my Scangauge 3 indicates a solid 185F temperature when running 75MPH on flat roads on a 70 degree day, and it really never gets above 205F as long as it's not hot outside.
kourt |
Kourt
I measured the cooler at the aluminum in/out barb fittings.
thank you. I do not have a thermostat in line of the cooler. Could not having the thermostat be a problem?
also I have the 2002 Eurovan Vista Winnebago |
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MrPulldown Samba Member
Joined: September 08, 2020 Posts: 649 Location: Truckee
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Posted: Sun Jan 29, 2023 1:15 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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BayStYat wrote: |
kourt wrote: |
The temps you list as measured at the cooler seem very low. The trans oil pan temps seem about correct.
It could be that the trans is not getting hot enough for the Derale thermostat to open, which would result in hot ATF going to the cooler in front of the radiator.
I have the GoWesty cooler with the Derale thermostat and my Scangauge 3 indicates a solid 185F temperature when running 75MPH on flat roads on a 70 degree day, and it really never gets above 205F as long as it's not hot outside.
kourt |
Kourt
I measured the cooler at the aluminum in/out barb fittings.
thank you. I do not have a thermostat in line of the cooler. Could not having the thermostat be a problem?
also I have the 2002 Eurovan Vista Winnebago |
Odd you changed the title and all the contents of your initial post.
The trans functions properly when the fluid is up to temp. Too cold and it will have some shifting issues. The thermostat not only helps the ATF get up to temp quicker, but to prevent overcooling in cold climates. 180 is when they open. _________________ 2002 EVC |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Sun Jan 29, 2023 1:20 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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MrPulldown wrote: |
BayStYat wrote: |
kourt wrote: |
The temps you list as measured at the cooler seem very low. The trans oil pan temps seem about correct.
It could be that the trans is not getting hot enough for the Derale thermostat to open, which would result in hot ATF going to the cooler in front of the radiator.
I have the GoWesty cooler with the Derale thermostat and my Scangauge 3 indicates a solid 185F temperature when running 75MPH on flat roads on a 70 degree day, and it really never gets above 205F as long as it's not hot outside.
kourt |
Kourt
I measured the cooler at the aluminum in/out barb fittings.
thank you. I do not have a thermostat in line of the cooler. Could not having the thermostat be a problem?
also I have the 2002 Eurovan Vista Winnebago |
Odd you changed the title and all the contents of your initial post.
The trans functions properly when the fluid is up to temp. Too cold and it will have some shifting issues. The thermostat not only helps the ATF get up to temp quicker, but to prevent overcooling in cold climates. 180 is when they open. |
Thanks. I did not want to create a new thread. |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Mon Feb 06, 2023 4:53 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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My scan gauge is reading 15-25 degrees higher than the transmission pan with an infrared thermometer.
What should I trust? |
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kourt Samba Member
Joined: August 13, 2013 Posts: 1922 Location: Austin, TX
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Posted: Mon Feb 06, 2023 7:33 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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You didn't answer the question of whether or not your ScanGuauge is reading X-gauge temps from the special configs (requires special programming, but reads at the proper temps) or from the ScanGauge default "trans temp" values, which will be 15 to 30 degrees higher. This needs to be determined with certainty.
kourt |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Mon Feb 06, 2023 7:37 pm Post subject: Re: 2002 Eurovan transmission temp issue |
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[
quote="kourt"]You didn't answer the question of whether or not your ScanGuauge is reading X-gauge temps from the special configs (requires special programming, but reads at the proper temps) or from the ScanGauge default "trans temp" values, which will be 15 to 30 degrees higher. This needs to be determined with certainty.
kourt[/quote]
Kourt
I did enter the FTF under the scangauge x option.
I used this tutorial
https://youtu.be/4XxPsBD1qAQ |
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kourt Samba Member
Joined: August 13, 2013 Posts: 1922 Location: Austin, TX
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Posted: Tue Feb 07, 2023 4:48 am Post subject: Re: 2002 Eurovan transmission temp issue |
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Great, thanks for that followup.
kourt |
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EuroTec Samba Member
Joined: August 24, 2020 Posts: 378 Location: Asheville, North Carolina
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Posted: Tue Feb 07, 2023 6:21 am Post subject: Re: 2002 Eurovan transmission temp issue |
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The fluid temp sensor is soldered onto the ribbon cable attached to the solenoids so it's a more accurate reading than the pan temp. _________________ If it ain't broke, don't fix it! |
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BayStYat Samba Member
Joined: July 30, 2020 Posts: 136 Location: Gulf Coast MS
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Posted: Sun Feb 12, 2023 6:49 am Post subject: Re: 2002 Eurovan transmission temp issue |
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EuroTec wrote: |
The fluid temp sensor is soldered onto the ribbon cable attached to the solenoids so it's a more accurate reading than the pan temp. |
Ok thanks. I am lost why my temp is running high. Verified my convertor is locking up with the correct RPMs. Running a trans cooler. What else can I check? |
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