1998 GMC Truck not down shifting

1998 GMC TRUCK
88,000 MILES • V8 • 4WD • AUTOMATIC
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RHONDAM
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  • 1 POST
can you please help- truck is not downshifting- from no gear. we have replaced the two shift solenoids and replaced fluid and filter. still will not down shift - have no 1st , 4th gear and no overdrive. when cold it shifts but when it warms up will not down shift.
Aug 29, 2009 at 4:06 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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