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What could make me lose speed in 5th gear in a 1990 jeep 4.2?

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2015-02-09 12:45:08
2015-02-09 12:45:08

Check for codes if you have a check engine light illuminating.

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The ax5, AX15 transmissions in a 1990 Wrangler use 80W90 gear oil.



depends on tire size and gear ration


that new I would have to say it could only be a stiff shifter boot.


If a 2000 Jeep Wrangler suddenly loses power in 5th gear, it might be a problem with the speed sensor on the transmission. This sensor regulates when the Jeep will shift or should shift.



It does not have a speedometer gear. The speedometer is electronic and gets its signal from the ABS and transmission computers from the wheel speed and transmission speed sensors.It does not have a speedometer gear. The speedometer is electronic and gets its signal from the ABS and transmission computers from the wheel speed and transmission speed sensors.



There where about three options from the factory. 3.07, 3.55, and 4.10.



Stock gear ratios will vary for a Jeep Cherokee depending upon the size of the motor. However, 3.55 and 3.73 are two common gear ratios for the Jeep Cherokee.



Spider gears do not have a ratio. The ring gear ratio could be between 3.07 to 4.10.


A 1990 Jeep Cherokee does not have a reset switch. The fuel system is computer controlled. If not functioning properly there could be a fuse or sensor malfunction.


In order to have good fuel economy and good performance, the best gear ratios for a jeep Cherokee with 33" tire size are: 3.91 4.11 4.27


A 2000 Jeep automatic that is not shifting correctly after it gets hot might have something wrong with the speed sensor that is located in the transmission. The speed sensor tells the transmission what gear to shift into at certain speeds.


How do you change the steering shaft in a 1990 Jeep Wrangler?


No. You have a 32RH transmission. It is a 3-speed automatic with a lockup torque converter, no overdrive gear.



There isn't one. only an "auto" trans has a dip stick.


Could be a bad resistor pack at the blower motor Could be a bad low speed relay


If the transmission in a 1998 Jeep Cherokee skips second gear when it's cold, the bands might need to be adjusted. There could also be an issue with the rear clutch.


Doctor Jeep was created in 1990-12.


or what will make the 1990 jeep wrangler 4.2 and 4.0 engine swap out


No, those do not match. For the 1990 look at the years 1987-1995



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