Repair 7

There are two oxygen or O2 sensors in the exhaust system on the 1995 Chevy Astro van. The process of changing the O2 sensors is the same whether it is the upstream or downstream sensors that you need to change, except that the location is different. These O2 sensors are critical to the proper operation of the fuel system and performance of the engine in your van. If you have a bad sensor, change it right away to correct drivability issues, hard stats and poor fuel mileage.

Instructions

1

Raise the front of your Chevy Astro with a jack and support it under the frame rails with a set of jack stands. Remove the jack once the van is securely on the stands.

2

Locate the O2 sensors from under the van. The upstream sensor threads into the exhaust pipe coming down from the engine manifold. It is on the inside edge of the pipe, closest to the engine block. The downstream O2 sensor is in the exhaust system just forward of the catalytic converter.

3

Determine which sensor you need to change, and position yourself below it. Locate the wiring harness coming out of the back of the top of the sensor and follow it up to the connector where the sensors harness and the vans wiring harness join. Disconnect the two halves of the connector by releasing the locking tab and pulling them apart.

4

Remove the O2 sensor from the exhaust pipe using an O2 sensor socket and ratchet to turn the sensor counterclockwise until it is free from the threads. Discard the old sensor and install the new one into the threaded hole on the exhaust pipe using your hands to get it starter. This will help prevent cross threading.

5

Tighten the O2 sensor with your O2 sensor socket and ratchet. Run the wiring harness connector from the new sensor up to the connector on the vans wiring harness. Push the two halves of the connectors together until the locking tab engages. If you are replacing both sensors, move to the other sensor and repeat the process.

6

Raise the front of your Astro off the jack stands with a jack. Remove the stands from under the van then lower the jack, setting the van back on the ground. Test run the engine to verify the sensors are functioning properly.

The front spindle nut on a 1995 Honda Accord is a single-use nut. This nut contains an outer flange that must be staked into a groove on the end of the axle shaft. The staking procedure prevents the nut from loosening when the vehicle is driven, but necessitates the replacement of the nut when its removed. In order to remove the 36 mm axle nut, the staked portion of the nut must be pounded out of the axle shaft to allow the nut to spin freely.

Instructions

Removal

1

Break the front lug nuts loose with a lug nut socket and a t-handle breaker bar.

2

Lift the front of the vehicle with a jack and set it down on jack stands

3

Remove the lug nuts and wheel. Locate the axle nut in the center of the rotor, on the end of the axle shaft. Align a steel punch with the staked-in portion of the axle nut, then use a hammer to drive the punch into the staked-in portion to undo the staking.

4

Place a 36 mm socket on the end of a t-handle breaker bar and place the socket over the axle nut. Ask an assistant to hold a large pry in-between the wheel studs; this holds the hub still so the axle and transmission arent damaged.

5

Loosen and remove the axle nut, then discard it.

Installation

6

Install a new axle nut onto the axle shaft, and have an assistant hold the pry bar between the wheel studs again.

7

Tighten the nut and torque it to 181 foot-pounds with a torque wrench.

8

Align a steel punch with the channel on the axle shaft, then strike the punch with a hammer to stake the new nut into place.

9

Reinstall the wheel and lug nuts, then lower the vehicle back to the ground. Torque the lug nuts to 80 foot-pounds with a torque wrench.

You can remove the windshield from your 1995 Honda from your home garage and save yourself a little money. You may choose to remove the windshield if it has any cracks or chips in it. You should definitely remove the windshield if it has any cracks longer than six inches in length. To leave a damaged windshield in place is to compromise the safety of the passengers. It is a fairly simple task to remove a windshield, requiring a few inexpensive tools that can be purchased from any auto parts store.

Instructions

1

Put on protective goggles and thick work gloves.

2

Use the pry tool to pry up the seal around the entire perimeter of the Hondas windshield. Pull the seal off of the windshield with your hands and discard it.

3

Run a windshield wire knife tool around the entire edge of the windshield to cut the glass from the urethane glue.

4

Sit inside the Honda and push the windshield out. Go outside the car and remove the windshield and set it aside.

5

Scrape off the remaining urethane from the windshield opening with a utility knife.