Kickinmule Posted December 11, 2014 Share Posted December 11, 2014 Since my 88 MJ is manual I don't have tranny cooler lines. So when I swap in the auto should I bring over the 92 radiator and tranny cooler lines also? Or will the lines fit my current radiator? Are y'all having fun with this noob? "Oh my, he doesn't even know what a blah, blah, blah etc. is?" Hope so! Link to comment Share on other sites More sharing options...
Eagle Posted December 11, 2014 Share Posted December 11, 2014 All the radiators are set up for automatics. Crawl underneath and you should see two plugs along the bottom of your radiator. While you're doing the conversion, you might as well go all the way and install an auxiliary tranny cooler for insurance. BTW, if you bring over the '92 radiator, you'll gain a filler neck but you'll lose a place to put your auxiliary fan switch. The 92 radiator doesn't have a bung for the temp sender in the driver's side tank. Link to comment Share on other sites More sharing options...
Comanche County Posted December 12, 2014 Share Posted December 12, 2014 You'll need the transmission controller also. Its located under the lower dash on the passenger side. I know there were some changes but not exactly sure if the 92' controller will work with your harness. Someone else who knows will have to chime in. Link to comment Share on other sites More sharing options...
PEEJ Posted December 12, 2014 Share Posted December 12, 2014 I'm swapping in an 88 AW4 into a 89 5 speed truck. Will I have any trans. controller issues,I really don't know what one is. Link to comment Share on other sites More sharing options...
ParadiseMJ Posted December 12, 2014 Share Posted December 12, 2014 Transmission Control Unit (aka TCU) bolted under the dash on the passenger side...it runs the electronics of the tranny. You should not have any issues with swapping the similar years. Except you'll do well removing the TCU from the donor AND the engine side wiring harness with the TCU plugs. I did the very same swap and screwed with the wiring for weeks until I realized I needed the wiring from the donor that I got the AW4 from. Link to comment Share on other sites More sharing options...
Kickinmule Posted December 12, 2014 Author Share Posted December 12, 2014 Yeah I'm goin your route ParadiseMJ. Renix TCU and engine harness and 92 trans and TC. Thanks Eagle, but where would I fit an aux cooler? The a/c condenser seems to take up all the room. Link to comment Share on other sites More sharing options...
Kickinmule Posted December 12, 2014 Author Share Posted December 12, 2014 Oh and ParadiseMJ, did you grab the entire engine bay harness or just the left side from the c101? Link to comment Share on other sites More sharing options...
Eagle Posted December 12, 2014 Share Posted December 12, 2014 Thanks Eagle, but where would I fit an aux cooler? The a/c condenser seems to take up all the room. The factory mounted them to the lower radiator cross brace, in front of the a/c condenser. Link to comment Share on other sites More sharing options...
ParadiseMJ Posted December 12, 2014 Share Posted December 12, 2014 Oh and ParadiseMJ, did you grab the entire engine bay harness or just the left side from the c101? Everything from the TCU plug (connector) up to the C101. All the wiring from the C101 stays, so you just plug it in. When you remove the TCU, pull the connector, feed it through the hole in the firewall (kind if a PITA) and keep the big rubber grommet attached (you will really not be able to remove it anyway). Removing the wiring harness took me about 20 minutes in the junkyard, disconnecting each sensor, component etc...and about 30 minutes took about 1/2 hour, cleaning connectors and either zip ties ot the factory wire holders. Then you'll have the correctly wired plugs to connect to the tranny plugs. Be sure to put the ground wires from the TCU on the oil dipstick ground bolt as well. Re-installing the rubber grommets was a bizzotch, helps alot if they are lubed up and warm (just like everything else in life :brows: ). When you're doing the wire swap, go to Cruiser's tips and do the sensor ground upgrade Link to comment Share on other sites More sharing options...
Kickinmule Posted December 12, 2014 Author Share Posted December 12, 2014 Thanks Eagle, but where would I fit an aux cooler? The a/c condenser seems to take up all the room.The factory mounted them to the lower radiator cross brace, in front of the a/c condenser. Alrighty then. More to consider... Link to comment Share on other sites More sharing options...
Kickinmule Posted December 12, 2014 Author Share Posted December 12, 2014 Oh and ParadiseMJ, did you grab the entire engine bay harness or just the left side from the c101? Everything from the TCU plug (connector) up to the C101. All the wiring from the C101 stays, so you just plug it in. When you remove the TCU, pull the connector, feed it through the hole in the firewall (kind if a PITA) and keep the big rubber grommet attached (you will really not be able to remove it anyway). Removing the wiring harness took me about 20 minutes in the junkyard, disconnecting each sensor, component etc...and about 30 minutes took about 1/2 hour, cleaning connectors and either zip ties ot the factory wire holders. Then you'll have the correctly wired plugs to connect to the tranny plugs. Be sure to put the ground wires from the TCU on the oil dipstick ground bolt as well. Re-installing the rubber grommets was a bizzotch, helps alot if they are lubed up and warm (just like everything else in life :brows: ). When you're doing the wire swap, go to Cruiser's tips and do the sensor ground upgrade Thanks again Dude! Is that still an acceptable greeting for the Cali folks? Bless your hearts. Link to comment Share on other sites More sharing options...
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