Join Date: Oct 1999
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Re: 93 350 TBI Acting up....
hmm, if it changes when you step on the brakes, that makes me kinda think of the vacuum system for some reason. anyway, check all your hoses. for kicks, check your EGR valve. i realize you would be drawing a code if it were EGR, but, you never know.
also check your throttle cable, make sure it doesn't have too much slack in it. if it does, adjust the little screw thingy there at the throttle body.