kf_chris
NAXJA Forum User
- Location
- Charlotte, NC
I've been researching the issue with my Jeep for a little while now and I'm hoping someone's had the same problem or can steer me in the right direction.
So, PROBLEM:
The tranny doesn't shift at the same points it used to and I have a power loss which translates into a loss of miles/gallon. First, second, and third shift higher than they used to ( all above 2K rpm and higher). It won't shift into 4th until I'm doing 49MPH, and only 49 MPH. The transmission also doesn't downshift unless I use the shifter manually to put it into 3rd or lower.
I've already replaced the TPS, and being a 2000 it's not an adjustable TPS so I'm pretty sure that's not the issue.
I have a check engine light and I'm seriously thinking about getting a set of solenoids and throwing them in along with a fluid change.
Also, the fluid is at the correct level, and It's only got about 8 or 10 thousand miles on this fluid in it.
All of the shifts are strong and I'm not really concerned with the tranny having a problem, because it never slips and all the shifts are strong. The shifter doesn't get warm, which I've had happenbefore on other cars from trans overheating.
I'm probably going to check the resistances per that one article online about the voltages fromthe TCU controller or whatever under the dash/glovebox.
The jeep is an 2000 with the 4.0L engine. I have 4.5" lift and 30 inch tires but Idon't think that stuff matters. If anyone has insight or has had this problem and knows which direction I need to go that would be great.
Thanks.
So, PROBLEM:
The tranny doesn't shift at the same points it used to and I have a power loss which translates into a loss of miles/gallon. First, second, and third shift higher than they used to ( all above 2K rpm and higher). It won't shift into 4th until I'm doing 49MPH, and only 49 MPH. The transmission also doesn't downshift unless I use the shifter manually to put it into 3rd or lower.
I've already replaced the TPS, and being a 2000 it's not an adjustable TPS so I'm pretty sure that's not the issue.
I have a check engine light and I'm seriously thinking about getting a set of solenoids and throwing them in along with a fluid change.
Also, the fluid is at the correct level, and It's only got about 8 or 10 thousand miles on this fluid in it.
All of the shifts are strong and I'm not really concerned with the tranny having a problem, because it never slips and all the shifts are strong. The shifter doesn't get warm, which I've had happenbefore on other cars from trans overheating.
I'm probably going to check the resistances per that one article online about the voltages fromthe TCU controller or whatever under the dash/glovebox.
The jeep is an 2000 with the 4.0L engine. I have 4.5" lift and 30 inch tires but Idon't think that stuff matters. If anyone has insight or has had this problem and knows which direction I need to go that would be great.
Thanks.