So Fix it

A vehicles water pump is used to push engine coolant through the cooling system to keep the engine from overheating. In the 1991 Honda Accord the engine itself, through the use of the timing belt, drives the water pump. If the water pump fails the engine could overheat and cause major damage. If this happens, the old water pump will need to be removed and replaced with a new one. In the 1991 Honda Accord, the water pump is located on the left side of the engine just behind the front left tire.

Instructions

Removal

1

Disconnect the battery from the motor by removing the cable going to the negative pole on the battery. This is to ensure that there is no electricity going to the car so nothing can short.

2

Empty the coolant from the engine by opening the plug in the bottom of the radiator. Let the coolant drain into a clean container so that it can be re-used after the installation of the new water pump.

3

Align the timing marks on the engine by turning the crankshaft until cylinder number one reaches top dead center (TDC) of the compression stroke. Take off the timing belt and make sure that the engine doesnt turn at any time during the removal or replacement process.

4

Unscrew the six bolts holding in the water pump, making sure to keep track of which hole each bolt came from. The bolt heads are 1 mm in diameter.

5

Pull the water pump and O-ring from the motor to complete the removal process.

Installation

6

Place some sealant on the rubber surface of the new water pump located near the bleed hole to protect it from tearing.

7

Insert the new O-ring and water pump into the spot where the old pump came from on the motor. Make sure that the holes for the bolts on the new pump are lined up with the holes on the motor.

8

Replace the six bolts on the new water pump. Use a torque wrench to tighten them to 9 ft.-lbs. of torque.

9

Replace the timing belt on the engine and pour the coolant from its container back into the radiator. Make sure the engine coolant is completely filled before starting your vehicle.

10

Reconnect the battery to the motor by connecting the negative wire to the negative battery terminal and start your vehicle. Check for any excessive leaking coming from the newly installed water pump. A small amount of fluid coming from the bleed hole is okay.

A heater core in a vehicle is a radiator which contains hot coolant from the engine. The coolant passes through the heater core when the heater is turned on, and releases heat inside the vehicle. The heater core in a 1991 Eagle Premier is part of the heating and air conditioning unit. This requires you to remove the heating and air conditioning unit prior to installing the heater core.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench. Drain the coolant from the radiator, and store it for later use.

2

Discharge the rigerant in the air conditioning system with an approved rigerant recycling machine. This step requires a licensed mechanic.

3

Remove the lower trim cover of the instrument panel with a socket wrench, and disconnect the support rod for the instrument panel. Remove the screw that attaches the electrical wiring harness for the steering column to the instrument panel bulkhead.

4

Disconnect the automatic shift cable from the drive lever with a pair of pliers. Pull the sleeve on the steering column down to expose the universal joint. Mark the steering column shaft and the intermediate shaft so you can align the two shafts later. Remove the mounting bolt connecting the two shafts.

5

Disconnect the mounting bolts on the steering column with a socket wrench, and remove the steering column from the instrument panel. Separate the steering column shaft and intermediate shaft, and remove them from the vehicle. Detach the defroster grille from the the instrument panel.

6

Remove the screws that attach the parking brake handle with a socket wrench, and lower the handle. Detach the ashtray and electrical connector for the cigarette lighter. Disconnect the mounting bolts that attach the instrument panel to the floor. Detach the interior temperature sensor and duct extension from the floor of the vehicle.

7

Detach the hoses from the heater core, and unplug the electrical connector from the coolant level switch. Disconnect the reservoir for the coolant from the heater unit. Detach the electrical connector for the blower motor, and remove the vacuum lines from the heater unit. Detach the rigerant lines from the dash panel.

8

Remove the retaining nuts from the heater unit with a socket wrench, and pull the heater unit toward the rear of the vehicle to remove it. Release the tabs on the heater unit housing, and remove the heater core. Push the new heater core into the housing so that the tabs snap into place. Ensure that the gaskets on the heater housing form a tight seal.

9

Perform steps three through seven in reverse order to install the heater unit into the vehicle. Align the steering column shaft and the intermediate shaft according to the marks you made in step four. Tighten the bolts that fasten the steering column to the instrument panel to 35 foot-pounds with a torque wrench.

10

Recharge the air conditioning system with rigerant. This step requires a qualified mechanic.

11

Attach the cable to the negative battery terminal with a socket wrench. Refill the radiator with coolant, and check for any coolant leaks.

The blower motor on a 1991 BMW pushes the air from the air conditioning compressor and the heater core out through the vents in the dashboard, heating or cooling the interior of the vehicle. Should the blower motor fail, the climate controls will fail with it. To fix the problem, you can change out the failed blower motor for a new one, a process that should take under 30 minutes to do.

Instructions

1

Pop the hood on the BMW. Remove the weather stripping at the firewall with your hands, then cut the zip ties that hold the wiring to the motor cover with the side-cutting pliers. Unbolt the cover from the motor with the 3/8-inch ratchet and socket.

2

Unbolt the retaining straps from the blower motor with the 3/8-inch ratchet and socket. Unplug the wiring to the motor with your hands, then take off the clamp holding the blower motor in place. Pull the blower motor out of its mount.

3

Install the replacement blower motor into the mount and reengage the clamp. Plug the wiring into the blower motor and then reinstall the fan cover and the straps with the 3/8-inch ratchet and socket.

4

Reinstall the blower motor cover with the 3/8-inch ratchet and socket. Reinstall the wire across the cover with the zip ties and push the weather stripping back onto the stock area.

In the 1970s, the catalytic converter was first introduced to control pollutants on cars and trucks. In 1976, the catalytic converter was made mandatory on all vehicles in the United States. The catalytic converter -- also caller a "cat" -- is responsible for removing unburned fuel from the vehicles exhaust. The catalytic converter typically fails when the catalyst material inside falls apart and clogs the converter. This clogging typically causes a very rough-running condition and sometimes causes stalling. Replacing the catalytic converter on a 1991 Geo Storm is relatively straightforward.

Instructions

1

Raise the front of the vehicle, using the floor jack. Support the vehicle by placing the jack beneath a secure part of the vehicle, like the sub-frame, and lowering the Storm until its weight is held by the stands.

2

Crawl beneath the vehicle, behind the front drivers-side wheel, until you reach the exhaust system. Locate the catalytic converter, the muffler-like component under the front seats.

3

Loosen and remove the nuts holding the front portion of the converter to the exhaust, using a ratchet and socket. If the nuts are frozen due to rust, use the propane torch to heat them up and try loosening them again. Push the converter towards the rear of the vehicle until the converter is clear of the studs holding it to the exhaust, then pull the converter down.

4

Loosen and remove the nuts holding the rear portion of the converter to the exhaust, using a ratchet and socket. If the nuts are frozen, use the propane torch to heat them up and try loosening them again. Pull the converter towards the front of the vehicle and off the exhaust system. Make certain to remove both the front and rear gasket from the exhaust pipes.

5

Place the new gaskets on the exhaust pipes, and use the studs on the pipes to hold the gaskets while installing the converter.

6

Place the front and rear of the catalytic converter on the exhaust pipe studs and hand-tighten the nuts on the studs. Make certain the "flow" arrow on the converter is pointing towards the rear of the exhaust.

7

Tighten the nuts on the converter to 32 foot-pounds, using the torque wrench and a socket.

8

Raise the Storm off of the jack stands, using the floor jack. Pull the stands from under the vehicle and lower it to the ground.

Developed and produced by General Motors, the 4.3L Vortec was a 4.3-liter V-6 engine used in Chevrolet vehicles. This engine was introduced in 1990 as a replacement for the 2.8-liter V-6. It is based on the bigger 5.7L V-8 GM engine, but has two fewer cylinders. GM engineers have determined precise timing specifications for the 4.3L Vortec.

Timing Definition

Ignition timing is the measurement in degrees of the crankshaft rotation at the instant when the spark plug fires the air fuel mixture while the piston is on its compression stroke.

Adjusting Timing

To set ignition timing on this engine, put the electronic spark timing (EST) in bypass mode by disconnecting the timing connector. This is a tan wire with a black stripe. This timing connector breaks out of the engine wiring harness conduit and is located adjacent to the distributor.

Timing Specification

The ideal time at which the mixture should be fully burned on the 1991 GMC with the 4.3L V-6 is set at 0 degrees of the crankshaft rotation both for the manual and automatic transmissions models.

If the door locks in your Chevy Corsica have trouble working, the most likely problems lie in the connecting rods breaking or coming loose or the lock cylinder itself getting damaged. You will need to get into the door to correct any of these problems. Fortunately, the setup of the Corsicas door is quite simple with regard to removing the door panel and accessing the lock components. You may need to do some moving in and out of the car from the other side if the lock wont let you open the broken door.

Instructions

1

Disconnect the manual window handle (if equipped) with a hooked tool on its clip and then unscrew and remove the inner door and pull handles with a screwdriver and Torx wrench.

2

Unscrew the inner panels retaining screws and pry the panel off its clips and velcro retainer with a trim stick. Remove the panel from the door.

3

Inspect the condition of the rods connecting the door lock to the door handle and reconnect them with their clips if they are disconnected. Disconnect the rods altogether and replace them if they are damaged.

4

Remove the retaining screw for the lock cylinder and its C-like retainer to remove it from the door if the cylinder is damaged.

5

Insert the lock cylinder into the door with its gasket, clip and retaining screw if you are replacing the cylinder.

6

Connect the rods to the lock if you had to disconnect them to remove the lock cylinder.

7

Reconnect the door inner trim panel with its clips, velcro retainer and screws. Reconnect the inner handles with their screws and the window handle with its clip.

Auto parts for a car, such as a 1991 Chevy Classic, are found at local dealerships, junkyards and online auto-part stores. Due to the complete renovation of this model, all auto parts for this car were created in 1991. There are only 217,462 known models of this vehicle, therefore, a transmission for this model, may be in a short supply. A 1991 Caprice Classic is either equipped with a 8 Cylinders E 5.0L TBI OHV or 8 Cylinders 7 5.7L TBI OHV engine; this must be located before you begin your search for the transmission.

Instructions

1

Call the Chevrolet dealership and ask if they have an available transmission for your car. When placing a call to the dealership, mention the year, make, and model of the car, as well as the engine type. If the transmission is available, set up payment and shipping options. If it is not available, ask the dealer if there are similar dealerships in the area that carry the part. If an adequate transmission is not located, ask the dealer to refer you to a junkyard.

2

Visit your local auto junkyard. Junkyards carry used auto parts with a different range of prices, depending on the condition of the part. Call the junkyard and tell them you are searching for a transmission. Tell them the make, model, year, and engine type of the car. If they successfully locate the part, ask if you need to take the transmission out yourself, or if it is already dismantled. If they require you to take it apart, bring adequate tools or a mechanic. If the auto part is not available, locate another junkyard or widen your search to an online shop.

3

Search for auto parts online. Go to your preferred search engine and enter "Auto parts online." Select a few of your results to browse through. When searching on the website, you are prompted to enter the make, year, model, and engine type of the vehicle. After locating your vehicle, a list of parts will appear. Select "Transmission." Select the transmission you are interested in purchasing. At check-out, payment options are given, such as a credit or debit card. Enter your information. Select a method of shipping and handling. One day shipping will arrive the next business day and standard day shipping will take three to five business days. Shipping costs may run you up to $300. You dont need to be a professional to buy a transmission online.