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| P0299 underboost http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=92911 |
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| Author: | Mrgabesir [ Thu Apr 11, 2024 6:12 pm ] |
| Post subject: | P0299 underboost |
Lost power the other day, feels like limp mode. I felt it happen, and seems like I may have heard a faint pop from under the hood. P0299 popped up, she starts and idles fine, and very initial acceleration is okay, but then no power. Turbo was rebuilt a few years ago, pretty new. What is the procedure to check vacuum lines/solenoid? I sucked on the line going directly to actuator diaphragm and it seemed to move (motor off), but I don’t know how to check the solenoid, etc, or if thats the best route… |
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| Author: | CATCRD [ Mon Apr 15, 2024 11:16 am ] |
| Post subject: | Re: P0299 underboost |
Have you checked your intercooler hoses for splits, or to see if one has popped off at the end? They usually split at the bottom where you can't see it. |
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| Author: | DieselJeepLuvr [ Mon Apr 15, 2024 1:41 pm ] |
| Post subject: | Re: P0299 underboost |
You have a blown intercooler line. Most times it's the one between turbo and intercooler as the heat deteriorates them faster. |
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| Author: | Sergio del Castillo [ Mon Apr 15, 2024 3:59 pm ] |
| Post subject: | Re: P0299 underboost |
I got similar situation some years back in one of my trips to Florida. In addition to, lost of power I got heavy black smoke. A crack of about 3/4 inch at the underside of the inner-cooler hose between the cooler and the intake manifold close to the cooler end. Some "duck tape" gave me a temporary solution while waiting for the shipment of the replacement hoses from ID parts at my brother's house (2 days). |
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