My 89 XJ's clutch master cylinder crapped out last week, it let me know by dumping fluid all over the fuse box and of course loosing clutch. I added fluid and it got me to work and back but before I could replace it the TPS stuck idle at 2500 RPMs! Tapping on the TPS brought the idle down but now the new clutch master lost pressure, I think at the fitting to the slave on the master. The new master is aluminum and the old was steel or iron so I didn't want to crank it down too tight. Well this morning it wouldn't start, it would crank fine and everything electrical was working so I first thought "OH NO the brake fluid on the fuse block has messed something up".
I checked the readings on the TPS and got a nice 4.98 volts for input, grounds all read fine but output read .45 volts and that should be at .84/.85 volts so I installed and adjusted my new NAPA TPS. Still no start, so I checked the 6 month old CPS and it read fine at 220 ohms. I plugged it back in and wham it started! So now I'll pull the little cup off the clutch master and crank down the line fitting then cut the connectors out of the CPS and solder them together, then re-check the adjustment of the new TPS after my battery is recharged. Thanks to all you forum members as had I just had my FSM to go by I doubt it would be running by now! b5
I checked the readings on the TPS and got a nice 4.98 volts for input, grounds all read fine but output read .45 volts and that should be at .84/.85 volts so I installed and adjusted my new NAPA TPS. Still no start, so I checked the 6 month old CPS and it read fine at 220 ohms. I plugged it back in and wham it started! So now I'll pull the little cup off the clutch master and crank down the line fitting then cut the connectors out of the CPS and solder them together, then re-check the adjustment of the new TPS after my battery is recharged. Thanks to all you forum members as had I just had my FSM to go by I doubt it would be running by now! b5