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Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go hereXJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
If your No1 solenoid fails, you will have no 1st or 2nd (or 3rd I think) when in D, only 4th
If when operated manually, you have 1 & 2, that means you should test whether no1 solenoid has ~15ohms resistance, measured via plug adjacent to trans dipstick
it is easy to test and replace if needed
that is the TC solenoid, the wires next to it are No1 and No2
so i may be having somewhat of a similar issue, but mine is this.
manual shifting ..1st gear picks up and goes but doesnt pass 2.5k and when it shifts into 2nd , its boooogs down like WAAAY DOWN! and 3rd is the same and D is the same....
now shifting with in (D) it will not pass 2.5k in any gear. it doesnt seam like it shift through gear but almost gliding through and then hits 4th and bogs ( almost stalling out) .. i have replaced the tcm and found a fuse blown to the tcm ( replaced) has a little bit more pick up and go but is still sluggish as all get out. i put about a quart of trans fluid in a day with no significant sign of leakage. ANNNNYONE have ANY idea what this could be or be related to? im 🤏🤏 close to changing a transmission! is this a relay for the tcm??
so i may be having somewhat of a similar issue, but mine is this.
manual shifting ..1st gear picks up and goes but doesnt pass 2.5k and when it shifts into 2nd , its boooogs down like WAAAY DOWN! and 3rd is the same and D is the same....
now shifting with in (D) it will not pass 2.5k in any gear. it doesnt seam like it shift through gear but almost gliding through and then hits 4th and bogs ( almost stalling out) .. i have replaced the tcm and found a fuse blown to the tcm ( replaced) has a little bit more pick up and go but is still sluggish as all get out. i put about a quart of trans fluid in a day with no significant sign of leakage. ANNNNYONE have ANY idea what this could be or be related to? im 🤏🤏 close to changing a transmission!
is this a relay for the tcm??
No, there are no relays for the TCM. Is it shifting through the gears with the shifter in (D)? If it's not hitting all the gears, that would point to a bad solenoid. Test the resistance as mentioned above. I would also test the throttle position sensor (TPS), because that will affect when the transmission shifts. Usually to be using that much trans fluid with no sign of a leak. Is this a new problem, or did you buy it that way?
Year? Looks like maybe the connector for the overhead console? What color wires?
No, there are no relays for the TCM. Is it shifting through the gears with the shifter in (D)? If it's not hitting all the gears, that would point to a bad solenoid. Test the resistance as mentioned above. I would also test the throttle position sensor (TPS), because that will affect when the transmission shifts. Usually to be using that much trans fluid with no sign of a leak. Is this a new problem, or did you buy it that way?
if you have a email. i can send you a video of what its doing. and i got it this way. it used to over heat and have a ton of other problems but ive done what most idiots do and start throwing parts so my tps is new as well as a munch of other parts🙄 but its hard to explain how it goes through the gears. doesnt shift just glides
i have a 96 sport utility and.. it is possible. the motorwas swapped from another jeep unknown year but i have the decal of the trans and thats how it seams its just upshifting until it bogs out and almoat stalls in 4th?
and if i can back trac a little that 10amp fuse isnt on the tcm harness. could it run somewhere else to a 10amp fuse? i tried chasing the wire back and it just goes right out the firewall
however, you should verify that Solenoid NO2 has an in spec resistance, as, if operated in D, you will have 1st and OD, but no 2nd or 3rd if that solenoid is not working
Its surprisingly difficult to detect this fault during ordinary driving, as the toquey 4.0L covers it up
it seems to "slide" thru 2nd and 3rd, but then bogs down
however, you should verify that Solenoid NO2 has an in spec resistance, as, if operated in D, you will have 1st and OD, but no 2nd or 3rd if that solenoid is not working
Its surprisingly difficult to detect this fault during ordinary driving, as the toquey 4.0L covers it up
it seems to "slide" thru 2nd and 3rd, but then bogs down
sorta, stay at 2500rpm until i hit 4th and then it bogs out
however, you should verify that Solenoid NO2 has an in spec resistance, as, if operated in D, you will have 1st and OD, but no 2nd or 3rd if that solenoid is not working
Its surprisingly difficult to detect this fault during ordinary driving, as the toquey 4.0L covers it up
it seems to "slide" thru 2nd and 3rd, but then bogs down
alot of the other problems i can figure out on my own ya know! i just want to be able to hit the gas and get up to speed and not feel like im gonna break down in traffic lol
alot of the other problems i can figure out on my own ya know! i just want to be able to hit the gas and get up to speed and not feel like im gonna break down in traffic lol
if you are satisfied you have all gears, but your vehicle will not go over 2500rpm, you may wish to perform a convertor stall test, check or swap TPS, change fuel filter and check fuel pump pressure
if you have a email. i can send you a video of what its doing. and i got it this way. it used to over heat and have a ton of other problems but ive done what most idiots do and start throwing parts so my tps is new as well as a munch of other parts🙄 but its hard to explain how it goes through the gears. doesnt shift just glides
In the video, looks like the trans is not shifting and you're shifting it manually? Since you have the lower dash off and easy access, unplug and measure the solenoid resistances directly at the TCU connector. Measure resistance between pins C14 and ground. It should be be 11-15 ohms. Same for C15 and C16. Verify you have power on D15 and D16, and a good ground on D3 and D7. You can also check that the TCU has power and is sending power to the #1 solenoid (C16) with the ignition on and the vehicle stopped. You should see it power both #1 and #2 for 2nd, and just #2 for 3rd gear. You can measure voltage on D2 and verify is swings from around 0-5 volts as you press the throttle. The diagram below is for a 95, so the colors may not match exactly.
A long shot, but crawl underneath and see if you have a front input speed sensor on the drivers side of the trans near the bellhousing. It's the blue sensor in front of the linkage in the picture below. If you do, then you have a 98+ transmission and same compatibility problem as https://www.cherokeeforum.com/f2/tra...n-help-260107/
Also looks like you have no power as I see you pumping the gas but it's not pushing the rpm up. Plugged cat or fuel filter or fuel pressure problem?
In the video, looks like the trans is not shifting and you're shifting it manually? Since you have the lower dash off and easy access, unplug and measure the solenoid resistances directly at the TCU connector. Measure resistance between pins C14 and ground. It should be be 11-15 ohms. Same for C15 and C16. Verify you have power on D15 and D16, and a good ground on D3 and D7. You can also check that the TCU has power and is sending power to the #1 solenoid (C16) with the ignition on and the vehicle stopped. You should see it power both #1 and #2 for 2nd, and just #2 for 3rd gear. You can measure voltage on D2 and verify is swings from around 0-5 volts as you press the throttle. The diagram below is for a 95, so the colors may not match exactly.
A long shot, but crawl underneath and see if you have a front input speed sensor on the drivers side of the trans near the bellhousing. It's the blue sensor in front of the linkage in the picture below. If you do, then you have a 98+ transmission and same compatibility problem as https://www.cherokeeforum.com/f2/tra...n-help-260107/
Also looks like you have no power as I see you pumping the gas but it's not pushing the rpm up. Plugged cat or fuel filter or fuel pressure problem?
so for the video i kept it in (D) and put the peddle to the floor for a better picture of whats going. and thank you for this info. ive been chasing this problem from front to back!
yes my transmission has that blue connector piece as you mentioned
whats the next step sense its a 98 on a 96. should i look for a 96 transmission
01-01-2021, 03:25 PM
