What size speakers are in a 2001 Pontiac Montana?

My 1999 Chevy express 1500 has a squealing under the hood you have tried changing the belts belt tensioner and a new idler pulley and the noise is still there does anyone have any more suggestions? How do you clear codes on 1992 Ford Tempo? I have a 2000 Subaru Outback. The fuel gauge light is out so it does not light up at night but the rest of the dash instruments light up. Do you think this is a fuse or a light bulb? How do you tell if your car battery has enough fluid? Should you change your brake fluid? How do you correctly tension belts and chains? What would cause truck to make loud whining or whistling sound? Why spark plug pops out of lawnmower? Why won't my 05 ford expedition drive forward in gear but it does drive backwards? What other oil filters are the same as drive works 4631? How much fluid is needed each day for good hydration? Can you mix Dex cool with O'reilly's universal coolant? Where is the Location of a Brake light switch on a 1995 Ford van? How many ltr is an mb900 engine? If you remove the packing on a GYTR exhaust on an 07 Yamaha R6 will it give more horsepower and will it damage the motor from noless back pressure? Do rims need replacing at the same time as you need a new set of tires? Does motor oil have an expiration date? Why does my 1970 k2500 sb 350 backfire through carb new distributor rotor coil etc rotor pointed at number one plug on compression stroke engine starts then dies and the engine runs in revers when di? How do you replace the left pop-up headlight on a 1997 Ford Probe GT? How do you connect cables from another car to start a car with a flat batttery?