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  #25  
Old 10-22-2012, 02:51 PM
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Re: 03 jeep gr.cherokee transmission problem

There is one solenoid block inside the transmission. Your jeep has the 5-45RFE tranny. Its not hard to change, if you have moderate mechanics habilities. You need to lower the pan, remove the inlet filter and remove the whole valve body with the solenoid block on top of it. You can then split the solenoid block from the valve body.
When the engine tries to stall, it could be a sticking solenoid, or also a sticking valve in the pump assy, which prevents the Torque converter clutch to disengage.
This last one requires the tranny to be removed and opened, so not a first thing to try. Sometimes also speed sensors can give strange behaviour and could be a good thing to start with. When the tranny was not serviced lately, some fresh fluid and new filters can do wonders as well. Did you already check for any fault code set?
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  #26  
Old 10-23-2012, 05:50 AM
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Re: 03 jeep gr.cherokee transmission problem

Thanks for the reply...fault code is P1784....i do have a large degree of mechanics(used to be one long ago). I will sorce and change both speed sensors and soloniod pack, and hopefully cure the problem, am still running it as it only happens once within a mile from starting from cold, perfect after that. once again ...thanks
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  #27  
Old 10-23-2012, 07:29 AM
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Re: 03 jeep gr.cherokee transmission problem

It indeed looks as a problem inside the solenoid block. I bought mine at : www.electricaladvantage.com. They use a good price for OEM equipment. Eventhough the speed sensors are not that expensive, i think that only changing the solenoid block would be enough. You could always change the sensors lateron when necessary, they are both mounted externally on the left side of the tranny. I changed both sensors and the pressure transducer (externally on the right aft side of the tranny) for USD 100. The solenoid was around 280 i believe.
The black connector solenoid block is not fabricated anymore, but the white connector block retrofits without problems and seems to be better as well. You will also need a new selector plate with this solenoid, which they also sell. There is even a rebuild kit available for the white connector solenoid block, with new seals and parts for the low pressure switches. Donīt know if this is available for the black connector solenoid block. I just ordered a new gasket for the solenoid block (just rebuild my tranny) and received this complete rebuild kit.
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  #28  
Old 10-30-2012, 10:42 AM
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Re: 03 jeep gr.cherokee transmission problem

originally my jeep was a wrecked rollover that i bought for cheap. i put in a cheap 100$ radiator when i rebuilt it. when my problems started with the transmission, 2 weeks prior i had a antifreeze leak. the transmission was rebuilt, new torque converter, and a new aftermarket transmission cooler. my transmission cooler in the radiator was clogged for sum reason, causing the tranny to start to burn up. i bypassed the radiator with aftermarket cooler,
all problems are still fixed as of today!!

i appreciate all the info, much helpful!!
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