- posted
19 years ago
1992 Suburban. 215K miles. Tranny fluid/filter last changed about 105K ago. The trans shifts late and hard from 1st to 2nd only when cold. Within
2 to 3 minutes of driving (say 3 or 4 first to 2nd shifts) it shifts fine. This has been occurring for a week and a half. All other gears are without incident and smooth. Fluid level is fine and color and smell seems ok but I'm no expert. I am going to drop pan and change fluid and filter but didn't know what else to check or have checked. Am I barking up the wrong tree? Do I just need to take it in and have the codes pulled? Also, a few articles I've read have suggested while the pan is off, and the vehicle is supported, start the engine and pour a few quarts of dexron through the tranny to flush out the fluid in the top end. That's a new one to me. Any dangers associated with that advice? Thanks for help....