So Fix it

The 7.3-liter Power Stroke engine that Ford manufactured from 1995 to 2002 is a diesel engine and typically has a turbocharger. It is most common in heavy Ford trucks from this period, and is the standard engine for the 1999 Ford F350 Super Duty with four-wheel drive. This engine requires a high-pressure oil pump, which is mounted directly to the cylinder block. The oil pump replacement procedure on a 1999 7.3-liter engine requires the removal of the radiator and the crankshaft damper.

Instructions

1

Disconnect the negative battery cable with a socket wrench to prevent anyone from starting the engine. Place a drain pan for the coolant under the radiator drain and open the drain. Allow the coolant to drain into the drain pan and replace the drain plug.

2

Remove the retainers for the air intake duct with a suitable pry tool and detach the air intake duct from the radiator support. Disconnect the expansion tank on top of the radiator with a socket wrench and remove the cover for the radiator support brace.

3

Disconnect the cooling fan and its shroud from the engine. Detach the hoses from the radiator and remove the retaining bolts for the radiator with a socket wrench. Remove the radiator from the vehicle.

4

Raise the vehicle with a jack and support it on jack stands. Disconnect the cover for the flywheel housing with a socket wrench and hold the flywheel in place with a suitable holding tool. Remove the mounting bolt for the crankshaft pulley bolt and disconnect the pulley. Detach the crankshaft vibration damper from the engine.

5

Assemble Step Plate Adapter D80L-630-A, Damper Wear Ring Remover T94T-6379-AH1, Bearing Collet Sleeve T77F-7025-C, Remover Tube T77J-7025-B and Forcing Screw T84T-7025-B to the crankshaft damper. Tighten the forcing screw to pull the damper wear ring from the hub.

6

Remove the retaining bolts that attach the oil pump to the cylinder block with a socket wrench. Detach the oil pump housing and its square gasket from the cylinder block.

7

Install the new oil pump and gasket to the cylinder block. Torque its mounting bolts to 14 ft. lbs with a torque wrench. Complete the oil pump installation by performing steps 2 through 5 in reverse order. Connect the negative battery terminal with a socket wrench. Start the engine and check for oil leaks.

Harley gas tanks must never leak and when they leak they must never be repaired. Leaking tanks must be scrapped and replaced. New gas tanks leak because of defective welds. If pressure testing reveals a leak in a new tank the tank should be returned to the place of purchase for a und. Used gas tanks leak because of camouflaged collision damage or internal corrosion. Used tanks should always be stripped of paint and bead blasted before pressure testing. Gas tanks must always be empty and dry before being worked on. Pressure testing requires a reliable source of clean, dry, compressed air.

Instructions

1

Connect the air compressor to the air tank with an air hose and two air hose fittings. Regulate the pressure of the compressed air released from the air tank with an air pressure gauge. Use the regulated compressed air with a pressurized air line and detachable fittings.

2

Drop a one foot length of light chain into the gas tank through the filler opening. Shake the tank to loosen and remove any rust inside the tank. Remove the chain.

3

Turn the tank upside down and shake vigorously. Attach a blower fitting to a pressurized air line. Blast the inside of the tank with pressurized air.

4

Seal the petcock opening on the bottom of the gas tank with an air hose fitting attached to a pressurized air line. If necessary, install a fuel petcock and fit the air hose to the petcock with a hose fitting and a flat head screwdriver.

5

Prepare a solution of 50 percent dish washing detergent and 50 percent water. Adjust the air pressure leaving the compressed air tank to 15 pounds per square inch above atmosphere.

6

Seal the gas cap and pressurize the inside of the gas tank to 15 pounds per square inch above atmosphere. Paint the exterior of the gas tank with the detergent-water solution using a paint brush.

7

Look for air bubbles. Any air bubble indicates a leak and a defective gas tank.

The tire pressure monitoring system on a 2005 General Motors truck consists of four tire sensors, a radio frequency receiver, and a number of modules that work together including the BCM, PCM, and passenger door module, or PDM. The tire monitoring system is activated by default, but whenever the PDM is replaced the Tech 2 scan tool must be used to enable the tire pressure monitoring system. The Tech 2 is GMs factory scan tool, and it is also the only scan tool that can re-activate the TPM system.

Instructions

1

Turn the ignition ON and connect the Tech 2 to the vehicles diagnostic communications port.

2

Power on the Tech 2 and select Diagnostics from the main menu. Select 2005 for the model year.

3

Select LD Trk, MPV, Incomplete. Choose the make of your truck from the menu, then select the body type.

4

Select F2: Chassis, then select Equal to or Under 8600 GVW.

5

Choose Tire Pressure Monitor, then choose TPM Option Enable. Select the option to enable the TPM system from the TPM Option Enable screen. Press exit to move back to the TPM main menu.

6

Select the Tire Type/Pressure Selection menu and enter your tire and pressure information. This information is located on the door sticker inside the drivers door. Press exit to move back to the main menu once youve entered this information.

7

Select Learn Sensor Location from the TPM main menu. Follow the on-screen instructions to allow the PDM to learn the sensor locations. Press exit to move back to the main menu once you are finished. Power off the Tech 2 and disconnect it from the vehicle. Turn on the engine and confirm that the TPM system is activated and operates properly.

The oil pressure sensor, often erred to as the oil pressure sender, is a unit responsible for telling a vehicles computer the oil pressure. It controls the gauge on a vehicle, which lights up as a warning indicator. This signals that the automobiles engine is receiving too little oil pressure or the sending unit is faulty. Low oil pressure could mean that not enough oil is present and can be easily fixed with additional oil. It might also indicate that the engine is burning oil or that an oil leak exists. If the sensor, or sending unit as some call it, is to blame, it can be easily tested.

Instructions

1

Insert the key into the ignition, and turn the key to the accessory setting. The engine should not be running.

2

Look at the oil gauge on the dashboard. Unplug the wire that is connected to the sending unit, if the gauge is at zero. If the gauge goes up to three, it indicates that the sender is bad and needs to be replaced.

3

Hold the end of the unplugged wire from the sending unit, and touch it to the negative part of the battery or to any other metal piece in the vehicle. If it shows zero on the oil gauge, it is a good sender and is not faulty.

If you are driving down the road in your Chevy Tahoe and you notice a light on the dash for "tire failure" or "low tire pressure" you might become alarmed. Today more and more vehicles are being manufactured with tire pressure monitor systems called TPMS. The TPMS was designed for driving safety because most people never take the time to even look at their tires or check the air pressure. Low air pressure in a tire is the leading cause of tire failure and can lead to accidents. If you have a TPMS monitor that is not working properly, you can troubleshoot it with a few easy steps.

Instructions

1

Walk around your Tahoe and look at each tire to see if one of them looks low.

2

Slide the air pressure gauge over each valve stem to check each tire and make sure that it is inflated to the proper psi. The proper psi is noted on the car door. Never go by the maximum inflation noted on the tire. You must always go by what is indicated on the car door. Improper inflation will cause the TPMS unit to flag a problem.

3

Take your TPMS computer scanner out of the box and become familiar with the settings. You will need to push the buttons on the front to find your make and model of car. Press the button to enter the scan mode and walk around to each tire. Press the button at each tire until you get an indication that the scanner cannot find the TPMS unit. This is the unit that needs to be changed.

Freightliner tractor trucks are used to transport goods around the country and for other heavy-duty tasks. Air pressure monitors are used to let the driver know whether or not the air pressure in one of the tires is too low for driving. If the Freightliner is driving on a tire in which the pressure is too low, the tire could blow. This increases the chance of losing control of the vehicle. You can troubleshoot an issue with your tire pressure monitor, but it will take a professional to replace it.

Instructions

1

Park the Freightliner on a level surface. The weight of the vehicle should be evenly distributed on all of the tires. Park near an air pressure machine, such as at a truck stop or large service station.

2

Go to the first tire on your Freightliner that you think may have a defective pressure monitor.

3

Make a note of the required pressure from the label on the tire. If you do not know the required pressure, contact the manufacturer or the tire retailer.

4

Turn the key inside the Freightliner to the "Accessory" or similar position so the electrical system turns on. The trucks dashboard gauges need to be functioning so you can get a reading from the pressure monitor.

5

Locate the valve stem on the tire and remove the cap from the stem. Use a small flat-head screwdriver to press down on the tip inside the valve stem to release the air out of the tire.

6

Wait until the tire is about halfway flat and then check the gauges inside your truck. The pressure monitor should be lit. Replace the pressure monitor if it is not lit. Replace the air removed from the tire.

Low oil pressure can be extremely damaging to an engine. It is also a good prognosticator of a more serious problem. This is something that you do not want to allow to continue because it will cause severe damage to your engine or even destroy it. Being able to diagnose these issues is a skill that the average car owner can acquire.

Oil Viscosity

Using an oil with a viscosity that is too heavy will cause the pressure to run low. One way to fix this is to try a thinner oil. Make sure to read the owners manual and change the oil to a viscosity that is appropriate for your area and climate.

Clogged Oil Filter

Check the oil filter to make sure that it is not clogged with debris. Sometimes a large clump or grit will build up and cause the filter to clog. An oil change can fix the problem.

Oil Pump is Failing

Failure of the oil pump is another issue. If the oil pump is beginning to go out it will cause the oil pressure to drop. These need to be professionally checked.

Bad Oil Gauge

Failure of the oil gauge is also a possibility. Before taking the oil pan off or getting a major repair you should have the cars oil pressure checked by a local auto store. They will do this for free, and this will back up the result you are getting from your oil pressure gauge. A professional needs to repair this issue.

Faulty Gaskets

Examine the gaskets around the engine head and around the oil pan underneath the car. The best way to do this is to wipe the edges clean with a cloth and then drive or run the car for a few minutes. Make sure that you do get the oil warmed up, since this will allow it to leak and show you where the issue is. If you see large amounts of oil leaking, this can force the engine oil pressure to drop.

Duramax engines are eight-cylinder, 6.6-liter engines manufactured by General Motors. The LLY version was in production from 2004 to 2005, and is a common engine for full-size Chevrolet pickups. The fuel system for the Duramax LLY engine is highly-pressurized, and requires a regulator to maintain the correct pressure. The replacement procedure for the fuel pressure regulator is the same for all vehicles with a Duramax LLY engine.

Instructions

1

Disconnect the air intake pipe and alternator with a socket wrench. Detach the electrical connectors for the air conditioning clutch and air conditioning cut-out switch. Remove the mounting bolts for the air conditioning compressor, and push the compressor to the right of the engine.

2

Lift up the latches on the connectors for the main wiring harness on the engine, and release the clip on the harness to detach the connectors. Disconnect the connector from the barometric pressure sensor. Remove the mounting bolts on the bracket for the engine wiring harness with a socket wrench, and disconnect the bracket.

3

Disconnect the electrical connectors from the engine coolant temperature sensor, fuel temperature sensor, oil level sensor and fuel pressure regulator. Detach the water outlet tube from the engine. Release the clamps for the distribution block hoses, and disconnect the hoses. Disconnect the retaining bolts for the Exhaust Gas Recirculation (EGR) hose, and release the clamp on the hose so you can push it aside.

4

Clean the fuel pressure regulator and injection pump with solvent 12377981 and compressed air. Disconnect the screws on the fuel pressure regulator with a T25 TORX tool, and detach the fuel pressure regulator.

5

Coat the new O-rings for the fuel pressure regulator with clean engine oil, and mount them to the new fuel pressure regulator. Install the new fuel pressure regulator, and tighten its screws to 35 inch-pounds, with a T25 TORX tool. Tighten the screws for the fuel pressure regulator again to 62 inch-pounds.

6

Install the remaining components by performing steps 1 through 3 in reverse order. Tighten the mounting bolts for the EGR hose and the main engine wiring harness to 15 foot-pounds with a torque wrench. Tighten the bolts for the air conditioning compressor to 37 foot-pounds.

7

Crank the engine until it starts to prime the fuel system. Allow the engine to idle and check for fuel leaks.

The Neon is a compact car that Chrysler manufactured under its Dodge brand from 1995 to 2005. The 1995 model had a 4-cylinder, 2.0-liter engine with fuel injection, which requires a highly pressurized fuel system. This requires a fuel pressure regulator to maintain the pressure in the fuel system within a specific range. The fuel pressure regulator in a 1995 Dodge Neon is part of the fuel pump module, which you must remove to install the fuel pressure regulator.

Instructions

1

Remove the negative cable from the battery. Open the fuel filler cap and remove the cap for the fuel pressure port on the fuel rail. Place one end of hose C-4799-2 in a gasoline container, and attach the other end of the hose to the fuel pressure port. Allow the fuel to drain into the gasoline container. Disconnect the hose from the fuel pressure port and replace the cap on the port.

2

Raise the Neon with a jack and support it on jack stands. Remove the cap from the drain tube at the rear of the fuel tank. Connect one end of a siphon hose to the drain tube and place the other end into a gasoline container. Drain the fuel tank into the gasoline container. Replace the cap on the drain tube.

3

Press the quick-connect fittings on the fuel lines to the fuel pump module and detach the fuel lines. Tap the locking ring for the fuel pump module with a hammer and brass punch to turn the locking ring counterclockwise. Remove the locking ring and pull the fuel pump module from the fuel tank. Discard the O-rings for the fuel pump module.

4

Pull apart the tabs on the retainer for the pressure regulator. Pry the fuel pressure regulator from its housing with a small pry tool. Lubricate the new O-rings with engine oil and place them onto the fuel pump module. Push the new fuel pressure regulator into position on the pump module. Push the tabs on the retainer for the fuel pressure regulator over the corresponding tabs on the fuel pump module.

5

Install the fuel pump module into the fuel tank and place the locking ring into position on the fuel pump module. Turn the locking ring clockwise until it locks into place. Connect to the fuel lines to the fuel pump module.

6

Lower the vehicle and fill the tank with fuel. Fasten the filler cap for the fuel tank and connect the cable to the negative battery terminal with a socket wrench.

A good hydraulic jack can be pressed into a variety of uses besides lifting heavy objects. One of the most common secondary uses for a jack is in a jack-operated press. When pressing various materials, especially ones with low tolerances for pressure, it can be helpful to accurately measure the amount of pressure the jack is under. This can be achieved by installing an oil-filled pressure gauge on the jack itself.

Instructions

Disassembling the Jack

1

Drain the oil out of the jack through the oil plug or side drain.

2

Remove the handle pump by removing the bolts holding it to the base of the jack.

3

Remove the pump housing by unscrewing the housing from the jack base using a crescent wrench.

4

Clamp the jack in a vise and remove the top nut from the vise using a pipe wrench.

5

Pull the top off the jack. Measure the diameter of the inner piston and calculate the area of the base. You will need this measurement to interpret the reading from your pressure gauge.

Tapping the Jack

6

Drill a three-sixteenths-inch hole in the base of the jack opposite the pump assembly. The hole should pass beneath the inner cylinder of the jack without penetrating it, and should reach to the center of the jack base.

7

Widen the hole in the side of the base to five-sixteenths of an inch, and to a depth of about an inch. Insert a one-eighth-inch pipe thread tap.

8

Drill a one-quarter-inch hole in the bottom of the jacks inner cylinder. The hole should be at the center of the cylinder and should intersect the hole you drilled from the side.

Reassembling the Jack

9

Put the top back on the jack, using Teflon tape to seal the seam at the top of the jack. Screw the top nut down tightly using a pipe wrench.

10

Screw the pump assembly back onto the jack using a crescent wrench. Reattach the handle assembly using the original bolts.

11

Refill the jack with hydraulic fluid, working the handle to displace any air bubbles before closing the vent.

12

Screw a one-eighth-inch to one-quarter-inch hydraulic tap adaptor into the tap you installed. Attach a quarter-inch elbow connector. Thread a 5000 psi oil-filled pressure gauge onto the elbow connector.