alright guys, somethings seriously wrong wit bakon

[91'explorer 2wd]

ok so i'm hauling a$$ 2 work and i hit a lil bump in this alley. and she totally pukes, she's still on and all. but like something got loose in the motor or something, i checked all the sensors that i can c, and she literally has like half of her power. , then if i hit a bump right, it'll get worse and go even slower, till it finally kicks in and goes back 2 half the power. any one ever had this problem????? any info would b great

 

[Crankcase]

Maybe you knocked loose a vaccuum line or ignition wire, and the bumps make it leak and loose power. Listen for any hissing sounds under the hood with the engine running, and wiggle the lines....