88 Cherokee

[JeEp4LiFe88]

Was wondering if anyone could help me. I have this problem where if I go to get on the gas it doesnt kickdown the transmission and take off. So I was curious as to if anyone had any ideas as they would greatly help. Thanks

[redrooster]

I don't know much about the 88 model with an auto, but Jeep had a lot of vacuum controlled items back in the day. Look to see if there is a vacuum hose coming out of the side of the transmission. If so, trace it back up to the engine checking for leaks.
The kickdown is either vacuum controlled or operated by a cable.

[Bounty__Hunter]

Probably need to adjust the TV cable at the throttle body. Everything else on that tranny is 'puter controlled with input from many sensors. Could also be the TPS out of adjustment.

	Throttle position sensor A throttle position sensor (TPS) is a sensor used to monitor the position of the throttle in an internal combustion engine. The sensor is usually located on the butterfly spindle so that it can directly monitor the position of the butterfly throttle valve. The sensor is usually a potentiometer and therefore provides a variable resistance dependent upon the position of the butterfly valve (and hence throttle position). The sensor signal is used by the Engine Control Unit (ECU) as an input to its control system. The ignition timing and fuel injection timing (and potentially other parameters) are altered depending upon the position of the throttle, and also depending on the rate of change of that position. For example, in fuel injected engines, in order to avoid stalling, extra fuel may be injected if the throttle is opened rapidly (mimicking the accelerator pump of carburetor systems).

[redrooster]

You're right, I was thinking they didn't get injected until 89. It was actually 87.