HAD THE SAME PROBLEM IT IS YOUR "TPS" SENSOR located on the TBI. Lots of things, but most probably carb or air related. In cold weather only ? Add the choke related problems. As for carb or air, I'd start checking the vacuum lines for leaks or kinks, because they are simpler to check and cheaper to replace than carb details. Check also vacuum to other than engine-related matters (all vacuum reservoirs, lines to air cond. and emergency brake replace, etc). Then next before doing things with the carb, change the air and gas filters -especially if You've never done this before. Then the carb, possibly accelerator pump, linkage problems, clogged passages, wrong fuel bowl level (doesn't sound like this kast problem to me but check anyway) Sorry, didn't notice Your "1991". Then there probably isn't a carb but injection... check the vacuum and the filters anyway, then the next I'd do would be to pour an injector cleaner bottle in the fuel tank, take the car to a longer ride, and see if the takeoff improves...
Possibe blown fuse
a fuse, relay, bad ground or positive wire at switch or solenoid, etc.
There are several things that can cause your 1989 Oldsmobile to hesitate. Dirty fuel injectors are the most common cause.
it could be so many diffrent things google "error codes for a 1994 fleetwood brougham" it will send you to myweb.accesuss.com or .net..very usefull in tracking down the cause
Yes
Bad speed sensors can cause the car to hesitate when accelerating at speeds below 20 mph. The blockage of the air filters can also cause the car to hesitate when accelerating at speeds below 20 mph.
A faulty fuel pump would cause your Navigator to hesitate when you accelerate. Bad gasoline could also be at fault.
There are several things that can cause your Ford E2 50 Van to hesitate while driving. The most common cause is a malfunctioning ignition switch.
yes, if the Cadillac converter is not working properly it can cause you to loose power and may in the future cause you to loose your engine.
Could be, time for a tune up.
bad spark wires
yes it would cause the gears to slip more or less