Hot start, rough idle

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Mar 5, 2014
Tucson, AZ
89 fj62. I've got a newish thing going on. I did some searches, and found nothing the same. When I start my truck after letting it sit for an hour or so, it idles a little rough. It then proceeds to drop in idle slowly, get more rough and shake really hard. I can wait it out for 30-45 seconds then the idle goes up to normal and becomes smooth. If I gas it, it seems to help and lessen the time of the low rough shaking whole truck idle. All tune up stuff done, new tps also. Any ideas?
I know this is a year old but I am commenting in hopes that you (or someone) found an answer for this. I have the same problem. It also occurs after a hard brake.

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