In post viewtopic.php?f=5&t=60438 I detailed having an issue that required a tow.

When the dealer called to tell me the damage and cost of a fix, the first thing they said was not to worry, the turbo was fine . . . .

Since then, I've been seeing frequent check engine lights and error P00299 again, although this time around, the Jeep runs on without missing a beat. Just got done towing my travel trailer through the mountains, and it performed flawlessly, except for throwing that error code and setting the CEL twice. Each time it did that, I erased the error code and motored on. The first time was under tow, the second on a run into town sans trailer. Tow back was uneventful.

I had the air hose from the turbo to the intercooler split last fall, so I replaced all those hoses then. But I will look around for another air leak. Any suggestions what else to look for?

Check the rubber boots on that thin vacuum line that feeds the turbo's VNT vacuum motor, from the vacuum modulator on the passenger wheel well. I've had 2 of those rubber boots crack and split on me, always on the bottom where it can't be seen. If the vacuum isn't there (or weak) the turbo defaults to fully-open vanes, dumping all boost and exhaust pressure.

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