05-13-2011, 07:55 AM
Join Date: May 2011
Location: Lakeland FL and Hooversville PA
Check the flex plate (flywheel) for cracks or loose torque convertor bolts.
Either will give a ticking knocking noise, more so on accel and when cold.
Cracked flex plate after it heats up, metal expands, will quiet down slightly.
Easy check. In neutral, brake on, rev engine slightly and note noise.
Now in gear, brake on, rev engine. If it get's louder you may have one of those.
Pull the inspection plate off the bottom of the bell housing to check.
Take a flash light and look close where the flex plate bolts to the crank, and at the spots where the t/conv bolts to the flex plate. If you see lines radiating out or rust lines most likely you have a cracked flex plate. If not check the T/conv bolts make em TIGHT!
Also a cat converter going bad can cause a ticking/knocking, ditto a broken baffle in the muffler. Again more so cold and on accel. Goes away warm.
97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.