rwaargle
Active Member
- Joined
- Jun 3, 2019
- Threads
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- 37
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- Location
- United States
- Vehicle(s)
- 2018 JL Wrangler Sahara
- Thread starter
- #1
I tried to look for someone with similar problem as I'm experiencing, but have yet to find one, so I'll start off.
I have a 2018 JLU Sahara with 2.0 and eTorque.
At about 16,000 miles, it developed a mild metallic rattling noise in the engine bay, towards the bottom end. It wasn't rotational, and just about the only time it happened was when the engine was at warm idle, at low RPM. I thought it was a loose bolt or heat shield, so I took it into the dealer and they diagnosed it as faulty belt tensioner. They told me they diagnosed it after the noise went away after the serpentine belt was removed. The tensioner has been replaced under warranty after about a week, but the noise came back after leaving the dealership. I couldn't do anything about it since I had to leave for a business trip in a couple of days. This was in mid-March.
Fast forward to early June. After getting back, the noise has progressed into both rattling and knocking/tapping. The knocking/tapping could be felt through the oil pan, perhaps indicating a serious internal issue. I took the vehicle back to the dealer on June 8th, to which they have replaced the tensioner again after a week, but the noise is apparently still there after putting the belt back on. Now they have pointed that the AC compressor is malfunctioning, which is backordered, apparently because of production shutdown from Coronavirus.
It sucks since the vehicle has been sitting at the dealer for about 4 weeks during the 18-month ownership for repairs--one for M220/LSD and 3 for tensioner/compressor. Thankfully, the dealer offers loaners, so my daily commute hasn't been impacted, but I miss my Jeep.
Has anyone experienced pulley or compressor failure that resulted in knocking noise, which could be felt through the oil pan?
I have a 2018 JLU Sahara with 2.0 and eTorque.
At about 16,000 miles, it developed a mild metallic rattling noise in the engine bay, towards the bottom end. It wasn't rotational, and just about the only time it happened was when the engine was at warm idle, at low RPM. I thought it was a loose bolt or heat shield, so I took it into the dealer and they diagnosed it as faulty belt tensioner. They told me they diagnosed it after the noise went away after the serpentine belt was removed. The tensioner has been replaced under warranty after about a week, but the noise came back after leaving the dealership. I couldn't do anything about it since I had to leave for a business trip in a couple of days. This was in mid-March.
Fast forward to early June. After getting back, the noise has progressed into both rattling and knocking/tapping. The knocking/tapping could be felt through the oil pan, perhaps indicating a serious internal issue. I took the vehicle back to the dealer on June 8th, to which they have replaced the tensioner again after a week, but the noise is apparently still there after putting the belt back on. Now they have pointed that the AC compressor is malfunctioning, which is backordered, apparently because of production shutdown from Coronavirus.
It sucks since the vehicle has been sitting at the dealer for about 4 weeks during the 18-month ownership for repairs--one for M220/LSD and 3 for tensioner/compressor. Thankfully, the dealer offers loaners, so my daily commute hasn't been impacted, but I miss my Jeep.
Has anyone experienced pulley or compressor failure that resulted in knocking noise, which could be felt through the oil pan?
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