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Old 03-01-2016, 08:02 PM
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Need help with code p2173

So it has been a hell of a ride the past few weeks. So let me start off with I bought a 2009 JKU about 8 months ago it had 79,000 miles on it and now sits at 85,0000.

I had an issue with the lightning bolt coming on and the dealer was going to "take care of it" for me. I got the jeep a couple days weeks later and all was good...for a month. The lightning bolt was back and for a while I just dealt with it. I would turn the jeep off, turn it on and keep going. Well, I got death wobble really bad and took it to a mechanic. He replaced ball joints and a u-joint and that fixed the death wobble. He replaced the PCM, my pedal and some sensor that would take care of the lightning bolt. (all of that was $1700)

3 days later the lightning bolt was back. This time it is p2173. I took it back to the shop and they just wanted to replace the throttle body. I am concerned that this may not be the issue. Today it also threw p0507 and I thought it might be a pcv valve. I replace it today and cleaned the throttle body. I also heard a "hissing" noise but I could not locate it. I cleared out the codes and thought that I might have fixed it, but NOPE. still throwing the same code! Can anyone help?

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Old 03-02-2016, 05:45 PM
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I replaced the map sensor and pub valve so far with no luck. I ordered a salvage TB and will put it on this weekend. How do I locate the TB gasket. I didn't see it when I cleaned my existing TB

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Old 03-02-2016, 06:04 PM   #3
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Maybe this might help ... Read this P0507 and P2173 codes - JeepForum.com
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Old 03-03-2016, 11:01 PM
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I've read most of these threads I can't locate any cracks or holes. I hope the throttle body I ordered fixes the issue.
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Old 05-15-2017, 04:06 PM   #5
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Originally Posted by acs2653 View Post
I've read most of these threads I can't locate any cracks or holes. I hope the throttle body I ordered fixes the issue.
So, was it the throttle body? I'm having the same issue, even the hissing noise. I was figuring it was the power steering box I installed because it started hissing around that time. But I also replaced my throttle body with the viper TB I had on before. I took it off earlier this year to diagnose a p2173 which turned out to be the egr valve.

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