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Re: 98 Jimmy 4x4 4.3 liter trans. problem
Yup, it's the ignition switch.
I'm surprised the administrators have not made a sticky of the GM tech serv. bulletin for the s-series.
I had mine replaced 2 years ago. It just bailed on me again...
Failing causes the tranny to go into limp mode - third gear only. Fluid pressure skyrockets, and the tranny will detonate after a short while in this mode.
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