Hellbent
NAXJA Forum User
- Location
- san diego, california
putting the xj back into service after being down for quite some time.
fixing a bunch of little things, one of the issues i'm having is with the torque converter not wanting to lock up. when i first got the jeep, the converter would randomly unlock; fixed that by cleaning the white switch way up the brake pedal. it worked fine after that. then one day it started refusing to lock up at cruise about 50% of the time. it got more and more frequent until it stopped altogether.
i've cleaned the connectors, cleaned the white switch, changed the fluid and filter, checked the fuses....everything's good. the solenoid ohms out right at 15, so in theory it's good.
what i have found is that when i wired in a tcc override switch, the converter will lock when the solenoid is powered directly......buuuut very slowly. it used to lock up quickly and firmly, almost like another "shift." now it takes around 15-20 seconds from the point i flip the switch until it locks. once locked, it seems to hold-although when i tested it at an idle(VERY briefly), it would not stall the motor. it would drag it down to where it was just barely still running, but it couldn't stall it. not sure if that's normal or not?
any ideas? can a solenoid get lazy, but still kinda work?
my next move is going to be to hook up a voltmeter or led light to the solenoid wire coming from the tcu to see if it's actually getting power when it's supposed to; although the very slow lock up seems not right to me.
for reference, the jeep is an '89 4.0/aw4/242
any ideas?
fixing a bunch of little things, one of the issues i'm having is with the torque converter not wanting to lock up. when i first got the jeep, the converter would randomly unlock; fixed that by cleaning the white switch way up the brake pedal. it worked fine after that. then one day it started refusing to lock up at cruise about 50% of the time. it got more and more frequent until it stopped altogether.
i've cleaned the connectors, cleaned the white switch, changed the fluid and filter, checked the fuses....everything's good. the solenoid ohms out right at 15, so in theory it's good.
what i have found is that when i wired in a tcc override switch, the converter will lock when the solenoid is powered directly......buuuut very slowly. it used to lock up quickly and firmly, almost like another "shift." now it takes around 15-20 seconds from the point i flip the switch until it locks. once locked, it seems to hold-although when i tested it at an idle(VERY briefly), it would not stall the motor. it would drag it down to where it was just barely still running, but it couldn't stall it. not sure if that's normal or not?
any ideas? can a solenoid get lazy, but still kinda work?
my next move is going to be to hook up a voltmeter or led light to the solenoid wire coming from the tcu to see if it's actually getting power when it's supposed to; although the very slow lock up seems not right to me.
for reference, the jeep is an '89 4.0/aw4/242
any ideas?