||01-11-2013 07:54 AM
92 YJ Wrangler rumbling, puttering in 3rd & 4th gears
1992 YJ Wrangler with new (rebuilt) engine. It sounds and feels like the engine is puttering and rumbling a bit after shifting into 3rd gear and 4th gear and seems to lose acceleration. Doesn't do it in 1st or 2nd gear. Just got all terrain tires so it's not the mud tires I had. When idling in 3rd...there seems to be kind of a rumbling as in the exhaust system, a type of puttering. Is it not firing on all cylinders? If that is the case, wouldn't the noises and acceleration loss be in all gears?