No power to the wheels, engine is revving fine.
CF Veteran
Joined: Jun 2009
Posts: 5,383
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Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Okay, so today, I did half of the job, removed the tranny filter and flushed as much oil as I could..
So then I went on the hunt to find the filter.. couldn't find any! :@
Most of the people just wash it using petrol and fit it back, so I started cleaning it..
and DAMN! I couldn't even imagine the amount of ****TTT that came out of that little tranny filter.. and the damn thing holds quite an amount of ATF! lol.. so, should I fit it back or what, it looks quite clean though, its still 'sinked' in petrol and having fan out there in the garage.. I tried to find that aspirator thingy but no luck. Pakistan has no such joys I think. Damn. Anyways, back to the point, I've cleaned the tranny filter quite some bit. I just hope that the slipping thing was due to this little filter. Got some new 7 liters of ATF.
Tomorrow I will try and find some good working solenoids and pack up the transmission back and get it working again. Is there a way to check solenoids using an ohmeter? I saw that somewhere on the INTERNETS but cannot find it again...
So then I went on the hunt to find the filter.. couldn't find any! :@
Most of the people just wash it using petrol and fit it back, so I started cleaning it..
and DAMN! I couldn't even imagine the amount of ****TTT that came out of that little tranny filter.. and the damn thing holds quite an amount of ATF! lol.. so, should I fit it back or what, it looks quite clean though, its still 'sinked' in petrol and having fan out there in the garage.. I tried to find that aspirator thingy but no luck. Pakistan has no such joys I think. Damn. Anyways, back to the point, I've cleaned the tranny filter quite some bit. I just hope that the slipping thing was due to this little filter. Got some new 7 liters of ATF.
Tomorrow I will try and find some good working solenoids and pack up the transmission back and get it working again. Is there a way to check solenoids using an ohmeter? I saw that somewhere on the INTERNETS but cannot find it again...
Be sure to dry the filter completely from the petrol and to use DexronII or better fluid.
Thread Starter
Seasoned Member
Joined: May 2009
Posts: 339
Likes: 4
Year: 1996
Model: Cherokee
Engine: 4.0L
hmm
reading by my multimeter:
OD Solenoid reads 12.4 ohms
1/2-3/4 shift solenoid reads 12.5 ohms
2/3 shift solenoid reads 12.4 ohms
with the meter set at 200 ohms. Is that setting correct to check the solenoids, and from the readings they look fine.. I mean, then why my tranny doesn't shift properly?
And now the meter set at 2000:
OD solenoid: it fluctuates between 10 and 11 ohms
1/2-3/4 shift solenoid: same thing^^
2/3 shift solenoid: same fluctuating thing!
Does that mean my solenoids are good?
reading by my multimeter:
OD Solenoid reads 12.4 ohms
1/2-3/4 shift solenoid reads 12.5 ohms
2/3 shift solenoid reads 12.4 ohms
with the meter set at 200 ohms. Is that setting correct to check the solenoids, and from the readings they look fine.. I mean, then why my tranny doesn't shift properly?
And now the meter set at 2000:
OD solenoid: it fluctuates between 10 and 11 ohms
1/2-3/4 shift solenoid: same thing^^
2/3 shift solenoid: same fluctuating thing!
Does that mean my solenoids are good?
Thread Starter
Seasoned Member
Joined: May 2009
Posts: 339
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Year: 1996
Model: Cherokee
Engine: 4.0L
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
You are terrible syncview, but funny lol.
The scale of your ohmeter must be the nearest to the measured value, always start with the smallest, if u have a blank reading switch to the next, until u see a number.
The values u have are ok, but don't forget that shifting is driven by TPS, CPS and TCU and a bunch of cables in between!
Are u from Pakistan? or just over there for some reason?
The scale of your ohmeter must be the nearest to the measured value, always start with the smallest, if u have a blank reading switch to the next, until u see a number.
The values u have are ok, but don't forget that shifting is driven by TPS, CPS and TCU and a bunch of cables in between!
Are u from Pakistan? or just over there for some reason?
Thread Starter
Seasoned Member
Joined: May 2009
Posts: 339
Likes: 4
Year: 1996
Model: Cherokee
Engine: 4.0L
How am I funny being terrible? 
And the lowest ohm setting my multimeter offers is 200 ohms
CPS ASWELL?! Dammit.
And is there any relation b/w the shifting and NSS?
I'm from Pakistan. Have been living here for like 9 years now, moved from Saudi Arabia to Pakistan in 2000. I was born in Jeddah, Saudi Arabia.. but I'm a Pakistan national.
And the lowest ohm setting my multimeter offers is 200 ohms
CPS ASWELL?! Dammit.
And is there any relation b/w the shifting and NSS?
I'm from Pakistan. Have been living here for like 9 years now, moved from Saudi Arabia to Pakistan in 2000. I was born in Jeddah, Saudi Arabia.. but I'm a Pakistan national.
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
I like your spirit and tough head, reminds me of a friend i used to have from Pakistan, his name is Rami and his father is a Mercedes dealer in Islamabad. We used to go eat delicious lamb kebab after his ramadam.
The TCU works with signals from the sensors, just like the ECU.
When u have finished here come over to our blurt thread (Late night post ***** 2 (censored)) to have some fun.
The TCU works with signals from the sensors, just like the ECU.
When u have finished here come over to our blurt thread (Late night post ***** 2 (censored)) to have some fun.
Thread Starter
Seasoned Member
Joined: May 2009
Posts: 339
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Year: 1996
Model: Cherokee
Engine: 4.0L
Rami Shahnawaz?
How in THE WORLD CAN I FIND OUT what is the damned problem? arghhh
Anyways, I will investigate about it tomorrow when the jeep gets running..
How in THE WORLD CAN I FIND OUT what is the damned problem? arghhh
Anyways, I will investigate about it tomorrow when the jeep gets running..
Last edited by syncview; Jul 9, 2009 at 04:48 PM.
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Thread Starter
Seasoned Member
Joined: May 2009
Posts: 339
Likes: 4
Year: 1996
Model: Cherokee
Engine: 4.0L
So, the jeep is running now. But its shifting as it used to, it didnt use to shift it correctly, but it did start in first gear in D but shift it at a random point or whenever the throttle is pressed it used to shift in 2nd gear.. however, it is running fine in 1-2 and 3.. didn't check if it shifts from 1 to 2.. anyideas?
Should the TCU be reset? and how do we reset the TCU?
Should the TCU be reset? and how do we reset the TCU?
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Unplug your battery.
I think u have a bad working throttle position sensor (TPS).
With the lever in 1-2 position it should shift to 2nd gear only above 3500rpm
With the lever in 3 position it should shift to second and third starting from 1500rpm depending on acceleration.
Check the kick-down cable to be at least one inch loose in closed throttle position.
I think u have a bad working throttle position sensor (TPS).
With the lever in 1-2 position it should shift to 2nd gear only above 3500rpm
With the lever in 3 position it should shift to second and third starting from 1500rpm depending on acceleration.
Check the kick-down cable to be at least one inch loose in closed throttle position.
Thread Starter
Seasoned Member
Joined: May 2009
Posts: 339
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Year: 1996
Model: Cherokee
Engine: 4.0L
Unplug your battery.
I think u have a bad working throttle position sensor (TPS).
With the lever in 1-2 position it should shift to 2nd gear only above 3500rpm
With the lever in 3 position it should shift to second and third starting from 1500rpm depending on acceleration.
Check the kick-down cable to be at least one inch loose in closed throttle position.
I think u have a bad working throttle position sensor (TPS).
With the lever in 1-2 position it should shift to 2nd gear only above 3500rpm
With the lever in 3 position it should shift to second and third starting from 1500rpm depending on acceleration.
Check the kick-down cable to be at least one inch loose in closed throttle position.
How do I check that?
Im going to check the TPS now, and will tell, in the meanwhile, you give me an idea as to how check the kick down cable, it is the one connected to the throttle body, coming from the transmission, right?
CF Veteran
Joined: Jun 2009
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Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
There is another cable attached to the throttle body lever, not the accelerator, that goes in the tranny.
We call that kick-down cable (i don't know if it's the same in the us), this is only engaged at almost wide open throttle operation and shifts the tranny to a lower gear to pass another car. This means that if you pull it it must have an inch of play otherwise it will engage at low rpm and tell the tranny to shift down.
We call that kick-down cable (i don't know if it's the same in the us), this is only engaged at almost wide open throttle operation and shifts the tranny to a lower gear to pass another car. This means that if you pull it it must have an inch of play otherwise it will engage at low rpm and tell the tranny to shift down.
Thread Starter
Seasoned Member
Joined: May 2009
Posts: 339
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Year: 1996
Model: Cherokee
Engine: 4.0L
Oh great, if thats it, it looks fine.. I can pull it from where it is connected to the throttle body, about an inch.. and it cannot be pulled more than an inch anyway, it has that stopper kinda thingy.. which stops it from being pulled more.
And the TPS readings:
0.70v at closed throttle..
4.10v at WOT.
So.. umm.. are the readings telling anything?
And the TPS readings:
0.70v at closed throttle..
4.10v at WOT.
So.. umm.. are the readings telling anything?
Last edited by syncview; Jul 10, 2009 at 10:12 AM.
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Oh great, if thats it, it looks fine.. I can pull it from where it is connected to the throttle body, about an inch.. and it cannot be pulled more than an inch anyway, it has that stopper kinda thingy.. which stops it from being pulled more.
And the TPS readings:
0.70v at closed throttle..
4.10v at WOT.
So.. umm.. are the readings telling anything?
And the TPS readings:
0.70v at closed throttle..
4.10v at WOT.
So.. umm.. are the readings telling anything?
The values should vary between 1 and 5 volts, so what u have measured is only minimum and maximum.
What u have to do is move the throttle very very slowly and observe the voltage increase progression.
If the multimeter displays a blank reading (----) at some point of the rotation it means open circuit and the TPS needs to be changed.
Adjust the TPS by the bolts to get the minimum over 1 volt and the maximum under 5.
How many things i am teaching u, u will become an expert
