S steviec90 New Member Original poster Joined Aug 21, 2024 Messages 12 Location PNW May 30, 2025 #1 99 Sahara 4.0 manual transmission runs great when I first start it. After 30 miles, launching out of first gets rough. Acts like it’s about to stall, whole car shakes. Shifts fine in other gears, just launch is super rough. Any ideas?
99 Sahara 4.0 manual transmission runs great when I first start it. After 30 miles, launching out of first gets rough. Acts like it’s about to stall, whole car shakes. Shifts fine in other gears, just launch is super rough. Any ideas?
macleanflood I break sh!t Supporting Member Ride of the Month Winner Joined Jul 24, 2021 Messages 9,655 Location Fall Creek, OR May 30, 2025 #2 Leaking intake manifold or a vacuum leak. See if the intake is tight. -Mac
