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If you want to find out how a drug affects the size of an iris, you might measure the iris size, give the drug, and remeasure the iris size. But if the lights go out, you might find the iris size increases without regard to the efficacy of the drug. So you use a control. You might *control* the amount of ambient (background) light.
What else can I help you with?
Good things about livening in the darkness?
to living in the darkness it inspair move towerd brightness
What was hitlers hatred towerd the Jews called?
Hitler's hatred did not have a name, but his plan was called, "The Final Solution."
What were the disadvantages the north had in invading the south?
The disadvantages the noth had was they lacked a good military genral. This is because most military schools and barracks were in the south. the north was more towerd the future in inventing machines. Anouther disadvantage they had was the lacked a good calvery. horses weakend mens moral and made enemys retreat faster.
Where is the thermostat located on a 1998 Oldsmobile Aurora?
At the engine end of the upper rad hose. When replacing it make sure you put the spring towerd the engine. It is on the driver side of the engine. Its under the black metal belt guard in the water pump housing. It is not hard to do but takes some time. And if you plan on replacing the water pump you need to get a special tool from the snap-on tool guy.
How do you change the water pump and power steering pump on a 1995 Pontiac Transport SE?
Replacing water and power steering pumpFor the water pump, first you'll need to drain the water from the engine. Make sure the engine is cold before you start. Drain the radiator with the drain plug on the bottome. Next, remove the serpentine belt by releasing the tension via the tension pulley. Next, remove the small screws that hold the water pump pulley in place and remove it. Place a drain pan under the vehicle to catch the anti-freeze. Remove all screws on the water pump. Dislodge and remove the water pump with your hand. Clean all old gasket from the engine surface where the water pump connects. Apply a high temperature gasket sealer to both sides of th new water pump gasket. Installation is the reverse of removal. For the power steering pump, first drain the power steering fluid by disconnecting the lower hose. This will have to be done from under the vehicle. Next, remove the serpentine belt by releasing the tension via the tension pulley. You will have to rent a pulley removal tool from your local auto parts store if you don't already have one. Remove the pulley from the power steering pump. Remove the pressure line and attachment bolts to remove the pump. Installation is the reverse of removal. After installation, fill the pump with new power steering fluid and bleed the system. I did this by jacking up the vehicle so both front wheels were off the ground, starting the vehicle, and turning the wheels all the way to the left, then all the way to the right, about 20 times. Check and refill the fluid as needed during this cycling process.To release serpentine belt tension: You will need a 3/8 in ratchett. There is a hole to insert the end of the ratchett into below and to the left of the pully wheel in about the center of the side of the engime you are facing. The hole is in what appears to be a small rectangle shaped bar. Put the nub that you would normally place into the backside of a socket into the hole and then exert forward pressure towerd the firewall.This will realease pressure on the belt. .....donbais
