1993 GMC Truck Pops out of fourth gear

1993 GMC TRUCK
128,000 MILES • 6 CYL • 2WD • MANUAL
Avatar
TXBWJ
  • MEMBER
  • 1 POST
Hi, I have a 93 gmc sierra stepside, five speed. It is difficult to get into fourth gear, and then pops out of gear. All of the other gears work just fine. Could this be a slave cylinder problem?

I do notice a whine sort of like a power steering pump going out, but the power steering pump is fine and the noise goes away once shifted to third gear, any ideas.
Oct 12, 2009 at 9:35 AM
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.
Advertisement
Avatar
MICKEY-D
  • CAR REPAIR CONTRIBUTOR
  • 304 POSTS
I think you have got a bad synchronizer, and probably a badly worn 4th gear. The whine that you hear is probably a bearing noise. You are going to need to pull out and rebuild your trans.
Dec 31, 2009 at 10:31 PM
Advertisement