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Old Sep 21, 2015, 03:49 PM
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Old Jul 28, 2016 | 09:50 PM
  #55456  
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Originally Posted by ICE
Hi all

Im new here so I dont know if this is the right colomn to ask this question BUT...

I have a 2001 grand cherokee with 3.1VM diesel and the transmission is starting to fail, and I've searched all over the internet and cant find what transmission is in the car. All forums say 44re (only if 4.0l) and mine is not 4.0l. any chance I can get some help on here???

Vin: 1J4GWB8491Y526821 if that helps anyone,

thanks for all the help I get.
You should the Grand Cherokee section, although this site is North American-centric, so most people here have never heard of VM Motori. Another site might be the best bet unless you can find someone with a WJ/WG service manual.
Old Jul 28, 2016 | 11:30 PM
  #55457  
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Originally Posted by salad
Ahh. This is not an accurate way to tell. These gauges are not precise instruments, just to give you an idea. You need to use something like a ScanGauge or other OBD-II scanner device that reads the data from the computer.

Of course this just tells you that the computer's programming is working properly. If you want to find out if the the sensor itself is accurate, you need to use something like an infrared thermometer to determine what the REAL temperature is.




Please loot at the pic it's not normal. E-Fan is running and shuts down after 2 minutes.
Old Jul 29, 2016 | 02:35 AM
  #55458  
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Originally Posted by inan

Please loot at the pic it's not normal. E-Fan is running and shuts down after 2 minutes.
2 minutes is acceptable for a 5-degree drop. The gauge is not accurate.
Old Jul 29, 2016 | 02:51 AM
  #55459  
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Originally Posted by salad
2 minutes is acceptable for a 5-degree drop. The gauge is not accurate.
What should I do about it?

my new temperature sensor

Old Jul 29, 2016 | 05:50 AM
  #55460  
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Originally Posted by salad
Ahh. This is not an accurate way to tell. These gauges are not precise instruments, --- you need to use something like an infrared thermometer to determine what the REAL temperature is.
Originally Posted by inan



Please loot at the pic it's not normal. E-Fan is running and shuts down after 2 minutes.
Originally Posted by salad
2 minutes is acceptable for a 5-degree drop. The gauge is not accurate.
Temperature is measured in different places for gauge and fan switch.
Gauge takes longer to measure difference.
Fan - Radiator temp is not the same as engine water jacket temperature (it's cooler - because: Radiator)
Old Jul 29, 2016 | 06:19 AM
  #55461  
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Originally Posted by RacerX
Temperature is measured in different places for gauge and fan switch.
Gauge takes longer to measure difference.
Fan - Radiator temp is not the same as engine water jacket temperature (it's cooler - because: Radiator)
Do you think this temperature is normal(in normal us) ? I think it is high, I live in weather 28 C average.
Old Jul 29, 2016 | 08:34 AM
  #55462  
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Look like a bad pinion seal?

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Old Jul 29, 2016 | 08:41 AM
  #55463  
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Originally Posted by RacerX

Temperature is measured in different places for gauge and fan switch.
Gauge takes longer to measure difference.
Fan - Radiator temp is not the same as engine water jacket temperature (it's cooler - because: Radiator)
Nope. 1997 and newer Jeeps use a single sensor. The gauge is fed by the PCM over the CCD bus.

Originally Posted by inan

Do you think this temperature is normal(in normal us) ? I think it is high, I live in weather 28 C average.
Yes that is normal.
Old Jul 29, 2016 | 08:42 AM
  #55464  
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Originally Posted by SatiricalHen
Look like a bad pinion seal?
Yep
Old Jul 29, 2016 | 08:49 AM
  #55465  
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Originally Posted by salad
Yep
so after regear, front pinion bearing goes, something is still wrong in the front after a new pinion bearing, rear pinion seal and who knows what else in the rear. I'm getting tired of this crap.
Old Jul 29, 2016 | 09:04 AM
  #55466  
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Originally Posted by salad
Nope. 1997 and newer Jeeps use a single sensor. The gauge is fed by the PCM over the CCD bus.



Yes that is normal.
Thank you so much my dear friend, but It could be so much higher than before,
its always in advance 99C-100C, I do not understand why now.
Old Jul 29, 2016 | 09:29 AM
  #55467  
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Originally Posted by SatiricalHen
so after regear, front pinion bearing goes, something is still wrong in the front after a new pinion bearing, rear pinion seal and who knows what else in the rear. I'm getting tired of this crap.
Just drop $7k on a pair of Dynatracs lol
Old Jul 29, 2016 | 11:46 AM
  #55468  
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Originally Posted by SatiricalHen
so after regear, front pinion bearing goes, something is still wrong in the front after a new pinion bearing, rear pinion seal and who knows what else in the rear. I'm getting tired of this crap.
just do the regear yourself, yea it's hard to do, but if you do enough research and got the tools, it's really not too hard, just very slow and detail oriented process.
Old Jul 29, 2016 | 12:08 PM
  #55469  
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Originally Posted by 93XJeeper
just do the regear yourself, yea it's hard to do, but if you do enough research and got the tools, it's really not too hard, just very slow and detail oriented process.
well I already paid the guy to do it and he's already put them in and he's making it right, but his shop is an hour away so taking it there gets old quick.
Old Jul 29, 2016 | 12:41 PM
  #55470  
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Originally Posted by SatiricalHen
Look like a bad pinion seal bearing?
yes.



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