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  #61  
Old 02-25-2014, 07:02 PM
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I'm going to have to find a long set of leads.
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  #62  
Old 02-26-2014, 02:34 AM
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Re: transmission solenoid pack problems

As mentioned before, check each wire for short to ground. Just simply connect an ohm meter (DDM) to the TCM connector sockets one by one and the other end to a known good ground. Should give infinite or very high resistance. Just to rule out the possibility you could also do this between the wires, just to be sure that no two wires are shorted to each other. Then finally you have to measure each wire for continuity. To make live easier you could just put a jumper wire between two sockets of the solenoid block connector and measure the same two wires at the TCM connector. No long wires needed for this and you measure two wires at a time. If a wire is shaving against some metal part, it can be measuring ok now, but with vibration or movement of the jeep the wire can dislodge and short out. So you will need to check the wire bundles for shaved wires, especially where the bundle passes over metal parts.
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  #63  
Old 03-12-2014, 03:04 PM
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I grounded a wire out under the hood to the TCM plug for each wire. Then took my meter and grounded one lead and put the other to my plug under the jeep. Got grounds from multiple wires ends underneath the jeep for every wire just about. May being doing this all wrong.
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Old 03-12-2014, 04:07 PM
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Re: transmission solenoid pack problems

You where trying to measure continuity of the wiring? Why not doing it easier and jumper two connector pins on the transmission side connector and measure in ohm position the same wires on the TCM connector. You measure two wires in the same step, resistance should be low, a few ohm max. Then check for short to ground: measure each wire from the TCM connector to ground (so one measuring pin on the connector and the other on a known good ground point). Resistance should be high, somewhere in the mega ohm range.
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  #65  
Old 03-12-2014, 05:13 PM
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Re: transmission solenoid pack problems

Just re-red your previous post. In fact what you did was measuring for continuity of each wire. Each wire should have given a low resistance from 1-2 ohm more or less. If they did, they where ok. If one wire didnīt, there seems to be a problem (wire breakage (could be internally with the isolation still intact) or corrosion on connector pins for example)
If all wires tested good, you should test each wire for short to ground. Both TCM and Transmission connector loose and measure each pin to ground (so one measuring probe on a known good ground and the other on a connector pin). Should be infinite or mega ohm range. If one shows a low figure (below 1000 ohm), you should look for shaved through wire isolation.
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Old 03-12-2014, 06:13 PM
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I couldn't find anything wrong with them. I'm going to drop it off at a shop in the morning. I don't know what to do really.
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Old 03-12-2014, 09:58 PM
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Re: transmission solenoid pack problems

Due to the intermittent caracter of your complaint, it is not an easy one to solve. While you measured the wiring in a static condition, engine and road vibration and acceleration/deceleration forces during driving can move a wire bundle and cause a short under certain conditions only. Let us know what the shop will find please.
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  #68  
Old 03-12-2014, 10:03 PM
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Will do bud. You have been helpful to do appreciate it its pretty much that I can not figure it out and I need it back on the road.
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Old 03-14-2014, 04:38 PM
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The people at the shop I took it believe it its the transmission itself.
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Old 03-14-2014, 05:06 PM
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Three of there technicians think that's what it is sounds like a big risk to me though.
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Old 03-14-2014, 06:55 PM
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trans shop always says its a trans,

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Old 03-14-2014, 08:11 PM
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Re: transmission solenoid pack problems

Does this trans shop use a scanner which can show all the transmission data? A shop here closeby is using a normal scanner, but it does show all the data which can be retrieved from the TCM. This helps a lot during trouble shooting.
I would at least take it to an other shop for a second opinion.
I was just rereading the previous posts and i wonder if a mechanical failure of the trans could be the problem. How could it work fine after the second pack change if something mechanically is wrong? On the road now, but when im at home i will have a look if a sticking valve in the valve body could have something to do with it, but i really wonder about this possibility.
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