Check the EGR connection/gasket at the top of the intake plenum. Also, check MAP sensor and make sure O ring is good and that it is locked into position.
08 JK 23S - Colorado Jeep Club No. 204
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"It takes a special kind of stupid to believe criminals will follow gun laws."
I do not consider myself a smartass. I point out the obvious, search for the truth, and speak fluent sarcasm. I am, by experience, an accomplished curmudgeon.