Repair And Fix it

Correct ignition timing specifications are crucial for engine performance. Timing affects many variables, including fuel economy and engine longevity. Sold for more than six decades, the F150 is a full-sized pickup manufactured by Ford Motor Company. Its engineers have determined precise timing specifications so that you can benefit from your 1989 F150 truck as much as possible.

Measuring Ignition Timing

A timing light is used to check the timing. When the motor is running, an inductive trigger signal is picked up from one of the spark plug cables, causing the light to illuminate and freeze while the spark plug fires. This helps determine the crankshaft position. Use this information for timing adjustment.

Timing Specifications

The ideal time at which the mixture should be fully burned on the 1989 F150 is in the range from 9.5 to 14.0 degrees before top dead center (BTDC) with engine running at 2,500 rpm.

Notes

These adjustments should be performed only on mechanical advance distributors. Also, when the engine is operating at high altitudes, the timing should be set to 14 degrees.

Removing the fuel tank from your 1989 Jeep for replacement of the tank, sender or other parts takes a few minutes and a little pre-planning. The tank should be as close to empty as possible to make removal safer and easier. The tank does not have a drain plug, so you will need to siphon the fuel from the tank into an approved storage container before you start or drive it until it is nearly empty. Replacement tanks, sending units and related parts are available at most major auto-parts stores.

Instructions

1

Remove the filler cap from the Jeep and set it aside. Position a jack under the Jeep and raise the rear off the ground, then place a set of jack stands under the rear axle to support the vehicle. Remove the jack for now.

2

Disconnect the fuel filler hose and vent line from the drivers side of the tank, using a flat screwdriver to loosen the hose clamps. Pull the hoses off the tank fitting and let them hang to one side.

3

Position a jack under the skid plate on the fuel tank, then remove the nuts around the edges of the skid plate, using a socket and ratchet. Lower the jack slowly, allowing the fuel tank and skid to drop down from the Jeep until you can reach the hoses and wiring harness connections on top of the tank.

4

Disconnect the wiring harness connector from the fuel sending unit and set it aside. Remove the clamps from the hoses on top of the fuel tank with a flat screwdriver, then disconnect the hoses and set them aside.

5

Lower the jack, dropping the fuel tank and skid plate out of the Jeep as a complete unit. Slide the tank out from under the truck so you can access any part of it required for the repair you are performing.

The Ford F-Series is a line of full-size pickup trucks in continuous production since 1948. The F150 models have a nominal carrying capacity of at least 1/2 ton, although the actual payload is typically more than 1/2 ton. A 1989 Ford F150 has a variety of engine choices and all of them come with fuel injection. The procedure for installing a fuel injector in this vehicle will vary slightly depending on the size of the engine.

Instructions

1

Disconnect the cable on the negative terminal of the battery with a socket wrench. Loosen the cap on the fuel tank to relieve the pressure in the fuel tank. Remove the valve cap from the fuel pressure relief valve on the fuel line in the upper right quadrant of the engine compartment.

2

Attach pressure gauge T80L-9974-A to the relief valve and open the pressure gauge to relieve the pressure in the fuel system. Remove the pressure gauge from the relief valve and place the cap on the relief valve.

3

Disconnect the upper intake manifold with a socket wrench. Remove the fuel rail and detach the electrical connection for each fuel injector.

4

Remove the fuel injectors from the lower intake manifold by rocking the fuel injectors gently back and forth while pulling up. Replace any worn O-rings or plastic caps for the fuel injectors.

5

Apply engine oil to the O-rings and put them on the new fuel injectors. Place the plastic caps onto the top of the fuel injectors. Install the fuel injectors onto the lower intake manifold by pushing them in gently as you rock them back an forth.

6

Attach the electrical wiring to the fuel injection and install the fuel rail. Connect the upper intake manifold if you removed it in Step 3. Connect the cable to the negative battery terminal with a socket wrench.

Slotting neatly between the 323 and 929 is Mazdas mid level offering; the 626 sedan and coupe. This third generation 626 brought with it updated styling, a choice of 5- speed manual or 4- speed automatic transmissions, and a torquey 2.2L, 4-cylinder engine that incorporates a unique 12-valve head design. These vehicles are known for their outstanding reliability with some still in use today. High mileage on the Mazda 626 can result in a few common issues that can be easily addressed and repaired.

Instructions

1

Tune-up the vehicle by changing oil, brake and transmission fluid. Install new spark plugs/wires, and replace clogged or dirty air and fuel filters. This service is suggested every 12 months and will help keep the Mazda running optimally; as well as address issues like an engine misfire, hesitation, and poor idle/fuel economy.

2

Connect an engine code reader to the 626s diagnostic port to quickly identify any faulty components.

3

Replace dirty or contaminated engine coolant, and install a new thermostat to help correct extreme engine temperatures or weak cabin heat.

4

Hook up a multimeter to test alternator and battery voltages. A voltage reading lower than 12 may cause starting issues and potential misfires.

5

Perform a brake inspection and replace damaged rotors or excessively worn pads (close to the metal indicator), to alleviate poor braking performance.