Repair 7

General Motors manufactured its LT1 engine from 1992 to 1997. This eight-cylinder 5.7-liter engine is in a variety of vehicles from General Motors such as the Chevrolet Camaro. The water pump in an LT1 engine cools the cylinder heads first before flowing around the rest of the engine. This allows the engine to run at a higher compression ratio, but also makes a faulty water pump more harmful to the engine.

Instructions

1

Disconnect the electrical wiring from the cooling fan. Remove the right cooling fan assembly with a socket wrench. Remove the left cooling fan assembly if your vehicle was made from 1996 to 1998.

2

Place a suitable container under the radiator. Remove the drain plug and knock sensor with a socket wrench. Drain the coolant from the radiator. Install the knock sensor and drain plug.

3

Remove the air cleaner and air intake duct with a socket wrench. Disconnect the upper and lower radiator hose from the water pump. Remove the heater hose from the water pump and throttle body.

4

Disconnect the electrical wiring from the coolant sensor. Loosen the retainers for the ignition coil bracket, and move the ignition coil out of your way. Remove the air pump bracket and disconnect the air pump, if necessary.

5

Unfasten the water pump mounting bolts with a socket wrench. Detach the water pump and discard its gasket.

6

Mount the new gasket to the new water pump and install the water pump. Torque the water pump mounting bolts to between 30 and 32 foot-pounds. with a torque wrench. Install the air pump if you removed it in Step 4.

7

Fasten the ignition coil bracket with a socket wrench, and attach the electrical wiring for the coolant sensor. Connect the heater hoses to the throttle body and water pump. Attach the radiator hoses to the water pump.

8

Install the air cleaner and air intake duct with a socket wrench. Replace the cooling fans that you removed in Step 1, and connect their electrical wiring. Fill the radiator with coolant.

9

Attach the cable to the negative battery terminal with a socket wrench. Start the engine and check for coolant leaks.

When an automobiles power windows wont go up and down, several things could be the cause. A faulty switch or bad wiring are two examples. The electric window motor should also have a close look taken at it when power window problems begin to surface.

Assessment

An electric window motor can be tested to see if its the reason a vehicles window wont go up and down. A fused jumper wire can function to send power past the switch and right to the window motor. If the motor doesnt respond, it will need to be replaced.

Repair

Using a voltmeter allows you to verify power is traveling from the fuse box to the switch, and from the switch to the window motor. Loose connectors can prevent voltage from reaching the motor and will have to be tightened.

Replacement

Because the interior door panel has to be taken off to reach an electric window motor, replacing them can be considered tricky on some types of vehicles. After removing the door panel, now the rivets holding the window motor in place will have to be taken out using a drill. The replacement motor will have its own rivet set for installation.

The Generation II LT is a series of eight-cylinder engines manufactured by General Motors. The LT1 version has a displacement of 5.7 liters and was in production from 1992 to 1997. The LT1 appears in high-performance General Motors cars made during this period, such as the Corvette, Camaro and Firebird. The water pump for the LT1 circulates coolant to the cylinder heads, which then flows through the engine block. A faulty water pump can cause the engine to overheat even when it has coolant.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench. Detach the electrical connector from the cooling fan. Disconnect both cooling fan assemblies.

2

Position a drain pan under the radiator and disconnect the knock sensor. Remove the drain plug for the radiator and allow coolant to drain into the drain pan. Replace the drain plug and connect the knock sensor.

3

Disconnect the air filter and air intake duct with a socket wrench. Detach the radiator hoses and heater hoses from the water pump. Remove the heater hoses from the throttle body. Detach the electrical connector from the coolant sensor.

4

Release the retainers on the bracket for the ignition coil, and push the ignition coil aside. Disconnect the air pump and its bracket with a socket wrench, if your vehicle is so equipped.

5

Remove the mounting bolts for the water pump with a socket wrench, and disconnect the water pump. Discard the gasket for the water pump, and clean the mating surfaces for the gasket with a clean shop towel.

6

Install the new water pump and gasket. Tighten the mounting bolts for the water pump to between 30 and 32 ft. lbs. with a torque wrench. Connect the air pump and its bracket, if your vehicle is so equipped. Place the ignition coil and bracket into their proper position, and fasten their mounting bolts with a socket wrench.

7

Connect the electrical connector for the coolant sensor. Attach the heater hose to the throttle body. Connect the heater hose and radiator hoses to the water pump. Connect the air intake duct and the air cleaner with a socket wrench. Install the cooling fans and attach their electrical connectors.

8

Fill the radiator with coolant, and attach the cable to the negative battery terminal with a socket wrench. Start the engine and check for coolant leaks.