1990 acclaim signal and brake lights

Replace that bulb. All those functions are from the same one filament inside those two filament bulbs. One filament is for park lights, and the other is for turns and brake light.

because of no light flasher on left side the front one will go faster .maybe the left rear light is burn. and brake lights are control by the brake switch on brake pedal hardware, might be unadjust

It sounds like you need to replace a turn signal buln, check both front and rear

Usually a fast flashing signal is because one of the bulbs is burned out or shorted out. If the signal and brakes use the same light which many cars do then check the wiring to it and replace bulb. If burns out again then it has a short between the signal switch and the actual light or the brake wiring to it is shorted.

as for the faster flashing thats as simple as a blown bulb, replace the bulb and see if that fixes the problem, it may fix the lot because the other symptoms you mention are a bad connection, if bulb is fine check the connection isnt loose or corroded over. if it is simply file it back to establish better connectivity,

you need to replace the flasher unit

Check the front lights. Usually if i flashes fast it indicate a bulb is out on that side.

quick fix,try to run jumper wire from solid lime green wire to tail light green/orange wire Your problem is no power

The problem is most likely not a bulb and certainly not a fuse but the 'flasher'. The flasher is located under the driver's side A/C duct above the fuse box. It just plugs in so you shouldn't need any tools.

While not likely, it is possible that the light bulbs in both sides are have bad filaments. Turn on ignition key (but don't start engine). Then turn on parking lamps (first detent or "click" on headlamp switch). Walk around car and look for illumination on front parking lamps and rear tail lights. Turn on the right turn signal. Are those (right hand) lamps now changing brilliance? Try the left turn signal in the same manner. Are those (left hand) front and rear lights changing briiliance? Take note of any positions that did NOT change briliance when the turn signals were activated. If NONE changed briliance, you either have a bunch of bad bulbs (unlikely) or a bad flasher (more likely) or a bad turn signal switch (most likely) or perhaps wiring problems (possible if the car has been in a collision or has been "worked on" by some "non-expert" mechanic). Check the action of the emergency flasher control switch located on the steering column (facing up). Pushing it in (down) should result in the button going to two different heights alternately (low, high, low, high). You could just have bad flashers or corroded flasher contacts! Good luck!