Repair 7

Fuel pump failure will stop a car in its tracks. An engine sputtering and shutting off is the most notable sign of pump failure. If there is gas in your tank and your car sputters and shuts down you may need to replace your fuel pump. The fuel pump is located inside your gas tank and it can be replaced within two to five hours with all of the proper tools.

Instructions

Relieve Fuel Pressure

1

Remove the gas cap to relieve any pressure in the gas tank.

2

Disconnect the wiring for the fuel pump assembly that is located behind the fuel filter hose, if you have a model with port fuel injection. The fuel filter hose is near the fuel filter just in front of the back tire on the passengers side.

3

Run the engine until it uses all of the remaining fuel and stops running.

4

Disconnect the negative battery terminal.

Remove Fuel Tank

5

Siphon gas out of your tank or use the fuel up if it is more than one-eighth full. Use a siphon pump to siphon fuel out of your vehicle. Insert one hose end in to the gas tank and the other in to a fuel-safe container. Pump the fuel out of the tank into the container.

6

Engage the emergency brake and block the front wheels. Raise the back of your vehicle up with a jack and place it on jack stands. Remove the jack.

7

Disconnect the wiring for the fuel pump assembly if you have not already done so. Disconnect the vapor return hose, the filler neck, and the vent tubes. Disconnect the fuel feed hose, and the fuel-return hose as well.

8

Support the fuel tank with the jack and remove both restraining straps. Lower the tank until you can access the wires and remove the ground strap and the wire.

9

Lower the fuel tank to the ground and bring it out from under your car.

Remove the Fuel Pump

10

Using a punch and hammer, gently tap the inner ring counter clockwise until the inner cams are free.

11

Pull the fuel pump out of the tank. Make sure not to bump it on anything because the fuel level float and the fuel sending unit are delicate and even a small bump will render the readings inaccurate.

12

Check the o-ring on top of the fuel pump and the filter on the bottom of it. If the o-ring is cracked or dry, replace it. If the filter cannot be cleaned, it must be replaced.

The Ford Probe was a sport coupe manufactured from 1989 to 1997, with the second generation of this series beginning in 1993. The GT trim level was a sportier version of the base model, and included a six-cylinder 2.5-liter engine with a double overhead camshaft. This type of engine requires a timing belt to synchronize the movement of the camshafts and crankshafts. The timing belt in a 1993 Ford Probe requires replacement approximately every 60,000 miles.

Instructions

1

Remove the cable from the negative battery terminal with a socket wrench. Support the engine with a floor jack and remove the mounting bolts on the right engine mount. Disconnect the engine mount and detach the covers for the timing belt.

2

Turn the crankshaft clockwise to align the timing marks. The timing mark on the crankshaft sprocket must align with the timing mark on the oil pump. The timing marks on the camshaft sprockets must align with the timing marks on the cylinder head.

3

Hold the timing belt tensioner in place to avoid stripping the threads on the mounting bolts when you remove them. Disconnect the lower mounting bolt on the timing belt tensioner with a socket wrench first, then disconnect the upper mounting bolt. Remove the mounting bolts on the number 1 idler pulley and remove the pulley. Detach the timing belt from its pulleys.

4

Insert a tool handle of appropriate size into one of the camshaft sprocket holes to hold it in place. Disconnect the mounting bolt for the camshaft sprocket with a socket wrench, and remove the sprocket from the camshaft.

5

Shift your transmission into fourth gear and set the parking brake if your vehicle has manual transmission. Disconnect the dust cover for the flywheel with a socket wrench, and install a locking tool onto the flywheel if your vehicle has automatic transmission. Disconnect the mounting bolt for the crankshaft sprocket and remove the sprocket.

6

Align the dowel on the right camshaft with the slot on the right camshaft sprocket Installed the sprocket onto the camshaft and hold the sprocket in place. Fasten the mounting bolt for the camshaft sprocket and tighten it to between 35 and 48 foot-pounds with a torque wrench. Repeat this step to install the left camshaft sprocket.

7

Align the key way on the crankshaft with the timing mark on the oil pump and install the crankshaft sprocket onto the crankshaft. Tighten the mounting bolt for the crankshaft sprocket to between 116 and 122 foot-pounds with a torque wrench.

8

Hold the timing belt tensioner in place with a vertical press and push the adjuster rod into its hole to align the hole on the piston with the second hole on the case of the timing belt tensioner. Place a metal pin with a diameter of 0.063 in. into the second hole on the timing belt case to hold the piston in place.

9

Turn the crankshaft clockwise to align the timing marks on the camshaft sprockets, if necessary. Turn the crankshaft counterclockwise to move the sprocket back by one tooth.

10

Install the timing belt onto the crankshaft sprocket, number two idler pulley, left camshaft sprocket, timing belt tensioner pulley and right camshaft sprocket in that order. Apply pressure to the timing belt to hold it in place, and install the number one idler pulley. Tighten the mounting bolt for the pulley to between 28 and 30 foot-pounds with a torque wrench.

11

Install the timing belt tensioner and tighten its mounting bolts to between 14 and 18 foot-pounds with a torque wrench. Remove the pin from the timing belt case. Turn the crankshaft two full turns clockwise to align the timing marks again.

12

Adjust the timing belt tensioner so that the deflection of the timing belt between the crankshaft and timing belt tensioner is 0.24 to 0.31 inches.

13

Connect the covers for the timing belt with a socket wrench, and install the right engine mount. Tighten the nuts for the engine mount to between 55 and 77 foot-pounds with a torque wrench and tighten the through bolt to between 63 in 86 foot-pounds. Lower the floor jacks supporting the engine, and attach the cable to the negative battery terminal with a socket wrench.

The Ford Mustang is an American muscle car which has been in continuous production since 1964. The 1993 Mustang GT was the last year of the third generation Mustangs which began production in 1979. This model has an eight-cylinder 5.0-liter engine with multi-port fuel injection. Each cylinder has its own injector, which delivers fuel to the cylinder in a precise sequence. You can access the fuel injectors from the engine compartment, where they are located on top of the engine.

Instructions

1

Remove the cap on the fuel tank to relieve the pressure in the fuel tank. Attach fuel pressure gauge T80L-9974-A to the pressure relief valve on the fuel supply manifold. Open the pressure gauge to relieve the pressure in the fuel system.

2

Remove the upper intake manifold with a socket wrench. Disconnect the electrical wiring harness for the fuel injectors. Release the retaining clips for the fuel lines to the fuel supply manifold and disconnect the fuel lines.

3

Remove the retaining bolts for the fuel supply manifold and disconnect the fuel rail from the fuel injectors by lifting the fuel rail and gently rocking it back and forth. Disconnect the fuel injectors from the intake manifold in the same manner.

4

Remove the O-rings from the fuel injectors, and replace them if they show signs of damage. Lubricate the O-rings with engine oil and place them onto the new fuel injectors. Install the fuel rail and fuel injectors to the intake manifold. Ensure the O-rings are properly seated by pushing down on the fuel rail.

5

Tighten the retaining bolts for the fuel rail assembly to between 15 and 22 foot-pounds with a torque wrench. Attach the fuel lines to the fuel supply manifold and attach the electrical wiring harness for the fuel injector. Install the upper intake manifold with a socket wrench. Start the engine and check for fuel leaks.

The 1993 Ford Mustang is a third generation of the car, which was in production from 1979 to 1993. The procedure for replacing the ignition coil in a 93 Mustang depends primarily on the engine. The engine is typically an 8-cylinder 5.0-liter Windsor engine. The ignition coil converts the 12 volts from the battery into the thousands of volts the spark plugs need to produce a spark. The ignition coil in a 1993 Mustang is located on the front of the engine.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench.

2

Disconnect the connector for the electrical harness on the ignition coil. Depress the locking tabs on the spark plug wires to detach the wires from the spark plug boot of the ignition coil.

3

Remove the mounting screws for the ignition coil with a socket wrench. Disconnect the ignition coil from the engine.

4

Install the new ignition coil and tighten its retaining screws to between 40 and 62 in. lbs. with a torque wrench. Apply dielectric compound into the spark plug boots to maximize the electrical contact between the wires and boots. Connect the spark plug wires to the spark plug boot on the ignition coil.

5

Attach the electrical connector for the ignition coils wiring harness. Connect the cable to the negative battery terminal with a socket wrench.

You can read the trouble codes on your 93 Mazda 626 right from your home garage, saving your time and money. The On-Board Diagnostics II computer (OBDII) comes standard on the Mazda 626. This computer receives trouble codes from sensors positioned throughout the vehicle that monitor all of the cars functions. When it receives a trouble code, it alerts you by illuminating a warning or service light on the vehicles instrument panel. When you see one of these lights, you can read the codes using an OBDII scanner to pinpoint the problem.

Instructions

1

Put the key into the ignition and turn it to the "II" position. Dont start the engine.

2

Look for an open port on the lower drivers-side dashboard, near the steering column. Plug the scanner into the port. The vehicles electrical system will power on the OBDII scanner. Wait for the codes to appear on the scanner.

3

Write down the codes on a piece of paper and look them up in the booklet that came with the scanner. The numerical codes will be translated into descriptions.

4

Unplug the scanner and turn off the vehicle. Take the codes and descriptions to your mechanic to have your vehicle serviced or repaired.

You can reset the trouble codes on your 1993 Volvo 850 right from your home garage, saving time and money. The On-Board Diagnostics I computer (OBD I) receives and stores trouble codes sent to it from sensors positioned throughout the car. The computer alerts you to any malfunction or service need by illuminating a warning or service light on the instrument panel. After the scan tool reads the codes, and after you have had the vehicle serviced or repaired, then you or your mechanic can reset the trouble codes by using the same OBD I scan tool.

Instructions

1

Located a port on the lower part of the drivers side dashboard near the hood release handle. This port should be the same size and shape as the connector on the OBD I scan tool. Plug the scan tool into this port.

2

Put the key into the ignition and turn it to the "On" position, but dont start the engine. This will turn on the scan tool.

3

Wait for the scan tool to read the trouble codes. Look for a command that says "Delete Codes" or a similar command. Select this command. Wait for the scan tool to complete the task. It will indicate that it has finished by displaying "Command Sent" or it will return you to the main menu. Scan tools vary a bit according to which company manufactured it.

4

Unplug the scan tool and turn on the engine. Verify that all warning and service lights have shut off of the instrument panel.

Correct ignition timing specifications are crucial for engine performance. Timing affects many variables, including fuel economy and engine longevity. Corolla is one of the most popular compact cars that was first introduced in 1966 and produced by Japanese automaker Toyota. Its engineers have determined precise timing specifications so that you can benefit from your Corolla as much as possible.

Measuring Ignition Timing

Use a timing light to check your timing while the engine is running. An inductive trigger signal will be picked up from one of the spark plug cables, causing the light to turn on and freeze while the spark plug fires. This helps to determine the crankshaft position. Use this information for making timing adjustments because the rate at which the crankshaft is spinning and is processed by the distributor controls the ignition (that is, controls when the spark should occur).

Timing Specifications

Ideally, the time at which the mixture should be fully burned on a Toyota Corolla is approximately 10 degrees before top dead center (BTDC) at 700 rpm.

Notes

Maximum RPM is not allowed. Cooling fan and vacuum advance (if equipped) should be turned off while adjusting the ignition timing.

Unlike many repair tasks, removing the steering wheel on a 1993 Chevrolet Blazer cannot be accomplished with only a screwdriver or a socket wrench. The procedure requires a special pulling tool that can be ordered online or purchased at your local auto parts store. There are several reasons why you might wish to remove your steering wheel. If you are customizing the interior of your Blazer, you may want to replace the factory steering wheel with an aftermarket part. Likewise, if you are replacing dashboard components, the steering wheel might be an obstacle and may need to be removed.

Instructions

1

Open the hood of your Chevy Blazer and disconnect the cable from the negative battery terminal. Let a few minutes pass before proceeding to ensure that residual power in the vehicles electrical system has dissipated. Doing this will disable the Blazers airbags so they wont be accidentally deploy while you are working on the steering wheel.

2

Pry the horn pad off the steering wheel using a screwdriver wrapped in tape to prevent accidental damage to the pad or the steering wheel. Do this slowly and carefully, as wiring is attached to the pad.

3

Disconnect the wiring from the back of the horn pad. Remove the pad completely from the steering wheel. This will expose a small space at the center of the wheel.

4

Remove the retaining nut at the center of the steering wheel using a socket wrench with an extension.

5

Inspect the bolt and steering wheel for any alignment marks made during a previous removal of the steering wheel. If there are no marks, draw a line connecting the bolt and the steering wheel. You will need these marks if you intend to reinstall the same steering wheel.

6

Fit the steering wheel puller tool over the center of the steering wheel. Fasten the tools bolts to matching screw openings in the center of the steering wheel.

7

Turn the steering wheel puller handle repeatedly until the Blazers steering wheel detaches from the shaft.

The 1993 Chevrolet Camaro is a fourth-generation Camaro, which includes the 1993 through 2002 models. The Z28 performance package for these vehicles includes an LT1 engine, which has eight cylinders and a displacement of 5.7 liters. The LT1 engine in a 1993 Camaro has a harmonic balancer, or crankshaft balancer, to reduce the harmonic vibrations that occur when the crankshaft spins rapidly. The crankshaft balancer on the LT1 engine is a weight on the crankshaft hub.

Instructions

1

Remove the battery cable from the negative terminal with a socket wrench to avoid starting the engine accidentally. Raise the vehicle on a floor jack, and support it safely on jack stands.

2

Disconnect the serpentine drive belt from the crankshaft pulley with a socket wrench.

3

Hold the hub of the crankshaft in place by using a straight piece of metal as a pry tool. Remove the retaining bolts from the hub with a socket wrench, and detach the crankshaft balancer from the crankshaft hub.

4

Mount the new crankshaft balancer onto the crankshaft hub, and fasten the retaining bolts for the crankshaft balancer. Hold the crankshaft hub in place with the pry tool, and tighten the retaining bolts for the crankshaft balancer to 63 foot-pounds with a torque wrench.

5

Mount the serpentine drive belt on the crankshaft pulley, and lower the vehicle with a floor jack. Connect the cable to the negative battery terminal.

The Chevrolet Cavalier is a compact car made by General Motors from 1982 to 2005. The 1993 model belongs to the second generation of Cavaliers, which includes the 1988 through 1994 models. The Chevy Cavalier had multi-point fuel injection beginning in 1992, increasing the output of the 2.2-liter engine to 110 horsepower. You must remove and install the fuel injectors in the 1993 Chevrolet Cavalier as an assembly, as none of its components are individually serviceable.

Instructions

1

Remove the fuse for the fuel pump from the fuse block under the dashboard. Start the engine and allow it to idle until it stalls. Crank the engine again to ensure the fuel system is empty. Turn the ignition off and replace the fuse for the fuel pump.

2

Disconnect the cable to the batterys negative terminal with a socket wrench. This will ensure you dont inadvertently crank the engine while installing the fuel injectors. Disconnect the air cleaner and detach the electrical connector for the fuel injector.

3

Remove the mounting screws and washers for the cover to the fuel meter with a socket wrench. Disconnect the cover for the fuel meter while leaving the gasket in place. Detach the fuel injector from the throttle body by gently prying it out with a small pry tool. Discard the large O-ring and washer from the top of the fuel injector cavity. Discard the small O-ring at the bottom of the injector cavity.

4

Lubricate the new small O-ring with transmission fluid. Install the small O-ring onto the fuel injectors nozzle, ensuring that the O-ring is flush against the fuel filter for the injector. Install the new washer into the fuel injector cavity. Lubricate the new, large O-ring. Press the large O-ring into the cavity against the washer so that the O-ring is flush with the surface of the fuel meter body.

5

Align the lug on the base of the fuel injector with the notch on the fuel meter body. Push and twist the fuel injector to install it into the cavity of the fuel meter body. Press down on the fuel injector to ensure that is completely seated within the cavity.

6

Replace the cover for the fuel meter and fasten the retaining screws with a socket wrench. Connect the electrical connector for the fuel injector and install the air cleaner. Connect the cable for the negative battery terminal.