The dreaded P0299 - JeepForum.com
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post #1 of 8 Old 08-19-2017, 08:52 PM Thread Starter
08_CRD_WK
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The dreaded P0299

OK coming back from a trip I took recently, stopped at a rest stop and when I was leaving I noticed, when the engine was under load, a pretty loud woosh sound up by the firewall. I got home and let it rest for the night. Next day I drove it to work, got the woosh and then had no boost, thing ran like a dog, got the red lightning bolt. Going home from work same scenario but this time it threw a CEL also, the P0299. I checked the intake for leaks, everything seems fine. So now I am at a loss. Anyone have any other thoughts? TIA

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post #2 of 8 Old 08-22-2017, 04:37 PM Thread Starter
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Nobody?
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post #3 of 8 Old 08-22-2017, 05:41 PM
Brit30-06
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Hi
You sure you have correctly checked all the piping for splits? This post on a uk site rang a bell for me http://jeep-club.co.uk/viewtopic.php?t=6557

Some hose splits only become obvious when under boost from the turbo too.

Is your turbo actuator working ok?

Brit.
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post #4 of 8 Old 08-22-2017, 07:26 PM Thread Starter
08_CRD_WK
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Well a buddy told me to spray starting fluid on the intake joints while the Jeep is idling, with a crack or leak the fluid gets sucked in and causes the engine to rev higher. Did that on the whole intake side and nothing. Visually everything looks good too. Not really sure on the actuator. How do you check that?
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post #5 of 8 Old 08-23-2017, 10:51 AM
Brit30-06
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Hi
Just spraying joints may not reveal much if there is a split in a hose. Did you read the link? Also split not always apparent unless pressured from turbo.
This you tube vid will show you how to check actuator better than I can explain mate. This can be a reason for lightening bolt.

Few ideas here too http://www.jeepforum.com/forum/f67/h...-code-1358214/

Brit.
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post #6 of 8 Old 08-23-2017, 07:09 PM
Over-land
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Sounds like your actuator is on its way out. Mine is too, comes and goes and eventually fails. I've seen rebuilt units for around $250 or a new one for $600. From what I see they last about 75-100K. YMMV
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post #7 of 8 Old 08-25-2017, 06:13 PM Thread Starter
08_CRD_WK
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OK well after watching the vid. I went out and turned the key to on and the actuator never moved. So looks like I will be getting that rebuilt. Thanks for finding that video!
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post #8 of 8 Old 08-26-2017, 07:43 AM
Brit30-06
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Hi
My pleasure to be of help. Let us know how you get on with the fix. Those guys on the vid have the Lancashire accent. We in Yorkshire find it odd too
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