- Jan 3, 2015
- 75
What is going on here?
My 08 TB 4.2 has 115k on it. Cracked manifold at 75K which fixed the diesel sound. Increasing loud exhaust again at 92k, fix was replacing the exhaust pipe to manifold gasket/donut. Shop used NAPA part 31657 which appears to be a Walker part. Same problem again at 99k, same fix with part 31657. Now at 115k, same problem same fix. What is going on here?
I'm thinking about doing the work myself next time and going with the OEM AC Delco 15167765 part. I do all of my own maintenance and some of my own repairs unless it looks like too much of pain or the middle of winter. This looks like it can be a bit of pain because of where the gasket is and getting to the bolts.
Additional caveat, complaint. For the latest fix, I originally took it to a different shop as they could get me in the next day where my usual shop was booking three weeks out. I told this shop what I thought the problem was because it had been twice repaired before and I had sprayed soaping water on the area and it was clearly leaking. I paid their 1/2 hour diagnostic fee to have them tell me they didn't that the exhaust pipe gasket was the problem rather they thought it was a cracked manifold again and wanted $1,000 for the repair. I said no thanks to them and won't go back there. I then waited for my regular shop to get me in who said it was the gasket, replaced and now back to being quiet.
My 08 TB 4.2 has 115k on it. Cracked manifold at 75K which fixed the diesel sound. Increasing loud exhaust again at 92k, fix was replacing the exhaust pipe to manifold gasket/donut. Shop used NAPA part 31657 which appears to be a Walker part. Same problem again at 99k, same fix with part 31657. Now at 115k, same problem same fix. What is going on here?
I'm thinking about doing the work myself next time and going with the OEM AC Delco 15167765 part. I do all of my own maintenance and some of my own repairs unless it looks like too much of pain or the middle of winter. This looks like it can be a bit of pain because of where the gasket is and getting to the bolts.
Additional caveat, complaint. For the latest fix, I originally took it to a different shop as they could get me in the next day where my usual shop was booking three weeks out. I told this shop what I thought the problem was because it had been twice repaired before and I had sprayed soaping water on the area and it was clearly leaking. I paid their 1/2 hour diagnostic fee to have them tell me they didn't that the exhaust pipe gasket was the problem rather they thought it was a cracked manifold again and wanted $1,000 for the repair. I said no thanks to them and won't go back there. I then waited for my regular shop to get me in who said it was the gasket, replaced and now back to being quiet.
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