Q: Engine failure to start

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I have a 93 jeep grand cherokee Laredo. Out of nowhere it will not start. Motor turns over great but just wont hit a lick. I check fuse box under the hood and 30 amp fuse was blown. I replaced it tried it again and fuse popped and smoke started coming out from around fan blower. What is my next step to try and fix this problem?

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