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XJ Ask the Question Thread
01-25-2011, 09:36 AM
#2911
☠ CF Sheriff ☠
I already posted a thread but I will post ask you guys on here too. I have a 94 Grand Cherokee with the 4.0. The trani wouldn't shift into overdrive one day last August and would just get high RPM's as I went faster on the interstate. I tried to keep it under 3 grand on my way home but when I got to town it started slipping real bad in second. So, it took a long time but a buddy and I rebuilt the trani. The intermediate shaft and a plate had sheared.
We got it finished up last night, put new shaft and plate, new torque converter, filter, gaskets, ect... Put fluid in it tonight and started it up and it was shifting a little rough but not far from normal. I disconnected one of the hoses to check and see if the fluid was being pumped sufficiently and it poured out, so that is good. When we went for a drive in it, the shifting was pretty good but it wouldn't shift into overdrive, just like before. I don't know if it is the transmission control module or some sensor telling it not to. I do know that I don't want to take that trani apart again. That overdrive was a major pain.
Anyway, if anyone has any ideas, that'd be great.
We got it finished up last night, put new shaft and plate, new torque converter, filter, gaskets, ect... Put fluid in it tonight and started it up and it was shifting a little rough but not far from normal. I disconnected one of the hoses to check and see if the fluid was being pumped sufficiently and it poured out, so that is good. When we went for a drive in it, the shifting was pretty good but it wouldn't shift into overdrive, just like before. I don't know if it is the transmission control module or some sensor telling it not to. I do know that I don't want to take that trani apart again. That overdrive was a major pain.
Anyway, if anyone has any ideas, that'd be great.
01-25-2011, 09:43 AM
#2912
☠ CF Sheriff ☠
Hey there folks.
So I think i may have found the leak issue and I need a little help to get the ider pulley on the front of the water pump off. I see that it must come off but as I try to remove the bolts on it the pulley spins. UGH SO frustrating as I am afraid I will bend it. Any help would be great.
Thanks
Jon
So I think i may have found the leak issue and I need a little help to get the ider pulley on the front of the water pump off. I see that it must come off but as I try to remove the bolts on it the pulley spins. UGH SO frustrating as I am afraid I will bend it. Any help would be great.
Thanks
Jon
01-25-2011, 11:54 AM
#2916
Member
Join Date: Oct 2010
Location: blanchard, ok
Posts: 192
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Model: Cherokee
Engine: 4.0
01-25-2011, 06:59 PM
#2919
Newbie
Join Date: Jan 2011
Location: Ithaca, NY
Posts: 11
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Year: 2000
Model: Cherokee
Engine: 4.0L
My rear windshield wiper works but will not squirt washer fluid (front ones work fine), have heard that this is usually the switch going bad, has anyone had this problem? switches seem cheap but didnt want to waste money if their was a better solution (tip does not seem to be clogged).
01-25-2011, 07:08 PM
#2920
Newbie
Join Date: Jan 2011
Location: pennsylvania
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Year: 1995
Model: Cherokee
Engine: 4.0L
i've got a 4.0 manual 5 speed and i'm gettin 12MPG what's everyone else gettin and what can i do to help it? i'm doin plugs and wires this week what else can help?
01-25-2011, 07:14 PM
#2921
Senior Member
Join Date: Oct 2010
Posts: 948
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Year: 1995
Model: Cherokee
Engine: straight 6
Originally Posted by amc12
i've got a 4.0 manual 5 speed and i'm gettin 12MPG what's everyone else gettin and what can i do to help it? i'm doin plugs and wires this week what else can help?
01-25-2011, 07:42 PM
#2922
☠ CF Sheriff ☠
Also take off the air intake tube and clean the throttle body and butterfly valve up with some throttle body cleaner (avoid spraying in sensor holes).
Make sure you have a clean air filter.
Is it throwing any check engine codes or seem like it's running rich (black smoke, strong exhaust odor)? If so you may have a faulty upstream (pre-cat) o2 sensor causing your excess fuel consumption.
You gas mileage isn't TERRIBLE, but it isn't good for an XJ either. I get around 22 mpg with my 4.0L 5 speed when i keep my foot out of it, and about 18-20mpg when i don't.
And that's WITH mud tires.
01-25-2011, 07:51 PM
#2923
Newbie
Join Date: Jan 2011
Location: Ithaca, NY
Posts: 11
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Year: 2000
Model: Cherokee
Engine: 4.0L
01-25-2011, 07:57 PM
#2924
CF Veteran
Join Date: Sep 2010
Location: Mercer County, NJ
Posts: 12,692
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
My rear windshield wiper works but will not squirt washer fluid (front ones work fine), have heard that this is usually the switch going bad, has anyone had this problem? switches seem cheap but didnt want to waste money if their was a better solution (tip does not seem to be clogged).
01-25-2011, 08:11 PM
#2925
Senior Member
Join Date: Oct 2010
Posts: 948
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Year: 1995
Model: Cherokee
Engine: straight 6
Originally Posted by amc12
i've got a 4.0 manual 5 speed and i'm gettin 12MPG what's everyone else gettin and what can i do to help it? i'm doin plugs and wires this week what else can help?