Yesterday I suddenly noticed a rear end vibration in my 94.
It felt like the kind of shudder you get under load with a misfire, which I had with a bad fuel injector and a blown spark plug on another vehicle. No CEL though on the LC
Changed the plugs, none were catastrophic. All looked like the had been running on the lean side. Jacked it up and checked the u-joints, no slop. No obvious issues. All had grease. All the u-joints were replaced from the original ones in the last 40,000 miles.
Transfer case fluid was good and correct level. Not mixed with ATF. Auto trans fluid was correct level and still smelled fresh from my last drain/fill about 20k ago.
Checking bearing play on all 4 wheels. None observed by rocking at 9/3 and 12/6. All 4 tires are inflated to exactly 55.0 and all 4 are same tire, put on about 15k ago and have been rotated twice (Nitto Terragrappler E load range)
185k on rig, which is well maintained. What other options should I check? The vibration is most notable at light load on acceleration or constant cruising, especially above 40. Seems to disappear when coasting. Feels like it's coming from the read end. TIA
It felt like the kind of shudder you get under load with a misfire, which I had with a bad fuel injector and a blown spark plug on another vehicle. No CEL though on the LC
Changed the plugs, none were catastrophic. All looked like the had been running on the lean side. Jacked it up and checked the u-joints, no slop. No obvious issues. All had grease. All the u-joints were replaced from the original ones in the last 40,000 miles.
Transfer case fluid was good and correct level. Not mixed with ATF. Auto trans fluid was correct level and still smelled fresh from my last drain/fill about 20k ago.
Checking bearing play on all 4 wheels. None observed by rocking at 9/3 and 12/6. All 4 tires are inflated to exactly 55.0 and all 4 are same tire, put on about 15k ago and have been rotated twice (Nitto Terragrappler E load range)
185k on rig, which is well maintained. What other options should I check? The vibration is most notable at light load on acceleration or constant cruising, especially above 40. Seems to disappear when coasting. Feels like it's coming from the read end. TIA