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1991 Honda Prelude - Page 3 Questions & Answers
Have an 85 Honda Prelude
check under the drivers side just behind the front door ,you should see a plastic guard under there move the shield away and there will be the pump.
How hard or expensive is it to change a speed
The speedometer sensor is located on the top of the transmission. It is
held on by one bolt. Remove the bolt and gently pull and turn the
speedometer sensor and the whole assembly will come out of your
transmission.
Park your Honda Prelude on a level surface, activate the emergency brake and place blocks behind the back tires for safety. Disconnect the negative battery cable with a terminal puller.
Raise the vehicle on the side of the wheel speed sensor's location. Remove the wheel and tire assemblies.
Disconnect the sensor electrical connection from the wiring harness.
Take note of the connection location for the sensor retainers, grommets and clips. You will need to know this information for the installation process.
Start at the connector end of the sensor cable and remove grommets, clips and retainers in order to free the harness.
Unscrew the sensor mounting bolt and remove the sensor from the differential housing.
Install the new speed sensor by reversing the removal process. Loosely secure the sensor and sensor harness connection in place, taking precaution to keep the harness from twisting or bending. Once in place, torque the sensor mounting bolt to 16 foot pounds (22 Nm). Tighten any bracket bolts to 84 inch pounds (10 Nm).
Lower the vehicle safely and reconnect the negative battery cable. Refer to your owner's manual to perform an ABS system check to confirm that you installed the sensor properly.
1991 Honda Prelude,2.1 litre, EFI, bogs down when
hi..this is beacuse of sluggish working of the linkages which should increase the gas flow through the injector when you accelarate. due to the sluggish operation its takes time to increase the amount of gas going to injector. so please check the linkages and tighten it accordingly.
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S3 light starts blinking after driving around for
The transmission's electronic control module is most likely bad I had a 1989 prelude that had the same issue I had to replace the TCM on it after the S3 light came on but my problem was a problem shifting, if you have a electronic speed sensor for the trans. and not a speedometer cable the speed sensor may be bad if you have the cable type change the TCM (transmission control module)
My B21 is nocking like crazy
Wow, you have the rare 2.1. Could be: bottom end (rod bearings), main bearings, piston slap from a scarred cylinder wall (worn rings from massive overheating or no oil). If it were valves it would be ticking, if you have knocking it's serious. If you heard it and didn't run the car anymore you could have got away with changing the bearings. Sounds like your crank is shot and will need turned if you decide to have the engine rebuilt.
Speedometer and the cruise control does not work
Replace the VSS (Vehicle Speed Sensor). It is affordable on eBay. It is on your transmission, near the back, but accessible from the top after you remove a few things. Start with the air box intake tube, etc. Then you'll see a sensor with a cable going to it.
Hi i own a 1991 Honda prelude, automatic. I'm
Get another key made, sounds like your key is either a new cut that is slightly out of alignment or it is an old key that is worn. If that doesn't fix it then you may need a new ignition column (tumbler). Try your key(s) on your door locks and your trunk lock to see if the same problem exists.
New battery and new alternator. Battery is dead
Sounds like you may have battery drain . Take the vehicle to a shop and have them check out battery and charging system. If this is a-ok then its either the wires behind the alternator that are corroded or you have battery drain. They will set up a voltmeter off the battery trminals and start pulling fuses until the neter readings are normal. Whatever fuse they pull that makes the current return to normal is the affected circuit.
How do you find tdc for a 1991 honda prelude 2.1
remove the #1 spark plug. rotate the engine in the direction it rotates when operating. use a socket and ratchet on the crankshaft bolt. while cranking, place your finger over the spark plug hole. when you feel pressure building. insert a wooden dowel into the hole and contact the piston. while holding the dowel against the piston, continue cranking while observing the dowel. when the piston reaches the top, the dowel will stop and begin reversing direction. when it starts reversing direction, stop and crank it back to the top. go slowly when performing all steps. obviously this procedure works best with 2 people.
the #1 plug should be the first one at the front of the engine. if you remove all plugs it will be easier to turn.
Freeze plugs
usually the freeze plugs are located on the engine block underneith the heads.
How come my 1991 honda prelude does not hold
Because the battery is going dead. If the alternator was at fault, the car would die after 3 hrs or less of driving, and it wouldnt restart. Same with the voltage regulator. The only culprit when a car starts like it was the last time, is when the battery is getting charged, but it is unable to hold it. If you turn off car, and restart it right away, and it sounds fine, it is one more indication of an exhausted battery.
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