Question about 1998 Buick Century

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How to remove a radio from a 94 buick century

The radio is out. the diode needs to be replace

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  • Anonymous Mar 18, 2009

    I need to remove the radio from my 1994 Buick Century but i can not because there is 4 screws holding it in but i can only get to 2 of them which are on the left side the right side has a black casing over the screws that holds the buttons for rear defrost and the map light and i can not remove this casing to get to the screws

  • John Johnson
    John Johnson Feb 28, 2017

    I also need the answer to your Question. I can tell you there are of Phillips Screws and other screws that you use to remove the dash trim around the steering wheel then you have to take the piece under the steering wheel. You have to remove the 2 screws that holds Dionostic Plug-In

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You have to disconnect the wires and if u cant do that call a professinal

Posted on Jan 14, 2009

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Posted on Jan 02, 2017

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Is a 94 buick century 2.0 motor a interference or non interference motor


2.0lt??? No such thing in a 94 buick century. Do you mean the 2.2lt? If so it is timing chain run and should not need attention

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HOW I CAN CHECK OIL LEVEL SENSOR


There s/b a finite resistance between pins 1 and 2. Even if this is so, the sensor can still be defective. I suggest that, if the dipstick shows full, and you're getting a Low Oil message, merely replace the sensor. It's a known, but rare, failure. You'll need to drain the oil, and replace the O-ring.

Continuity is used to check that a circuit is continuous, and not broken. It does not measure resistance. Example: an electrical fuse to see if it is truly blown.

Resistance is a measure of the impeding of current flow. In the case of the level sensor, the resistance element heats the sensor.

Diode test is to determine if a diode is defective; one polarity actually measures the junction voltage, and the other polarity shows nothing, which indicates that the diode is working.

If you want to know more, visit your local Radio Shack and ask for a book http://www.hella.com/MicroSite/soe/sites/default/files/downloads/J00137_Oelniveausensoren_GB_TT_korr1.pdf An Overview of Oil Level Sensors and How They Work
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1 Answer

Any idea about loud radio static problems on this vehicle


Here's how to test for a bad diode with nothing more than a decent digital multimeter.
1. Set the meter to read "AC VOLTS" (lowest range).
2. Connect the black "COM" lead probe tip to the battery negative post.
3. Connect the red "VOLTS" lead probe tip to the battery positive post.
4. Run the engine at 1500 rpm.
5. Turn on the a/c and rear defroster.
6. Your meter reading should not exceed 0.09 volts (90 millivolts) AC.
You can replace the diodes in the alternator fairly easily, or just swap in a rebuilt alternator if one is available fairly cheaply for your car.

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1 Answer

Will not charge battery Wisconsin engine


There are small diodes in the charging circuit. Cheak them with an ohmmeter. Should read high resistance one way and low resistance the opposite way. If it conducts the same both ways, it's faulty. Option is to remove it and take it to radio shack, they will test it for you. They will have a replacement diode too.

Sep 29, 2014 | Cars & Trucks

2 Answers

What does static in speakers mean?


Put an oscilloscope on the Generator (Alternator)
& look for A/C Ripple

Failed Diodes & a/c riding on the dc current

You have to check all vehicle grounds,That could
take half a day

Pull fuses you don't need to use the radio

Try the radio without the motor running (no alternator)

Their may be a bad diode in the A/C wiring, near the compressor
Try without the air on

Aug 12, 2014 | Cars & Trucks

1 Answer

Volume not working in my 2009 Acura TSX, radio comes on but not volume


you have a short in your radio and need to have it taken out and looked at by a radio shop one of your diodes are fried

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1 Answer

Fast idle 1994 buick century


If it only started after the hoses were replaced, it suggests an air leak was introduced during the work.

Nov 08, 2013 | 1994 Buick Century

1 Answer

I have a 94' buick century special 4 cyl. I need


Generally speaking, the module is mounted on the side of the block and the coils are mounted to the module. You can remove the entire assembly and then swap the coils over to the new module.
There should be a wiring harness plugged into the end of the module.

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1 Answer

2000 town car. found battery drain on fuse 33, which is radio fuse. whart could cause radio to drain battery?


Seen this "mystery drain" many times. Check spark at the battery to see how big the drain is. For this simple test, blow away any (explosive) battery charging fumes. Leave one terminal on and gently touch the other to its post in fairly dark surroundings. Then try it again with the wires taken off the alternator. Your spark is now probably much less. Usually bad diodes leaking electricity backwards through the alternator cause this drain. Replace the alternator or the diode pack inside it. Some mechanics recommend actually measuring the drain.... hahaha. OK whatever.

Apr 08, 2013 | 2000 Lincoln Town Car

1 Answer

Diode needs replaced


If this is for an Alternator, it would depend on finding the parts. The diode is a one-way gate to regulate current flow. Depending if this is a Ford or GM and the age/style of the part, some are threaded in to the Diode Trio and then soldered.

If this is a Diode for a heater circuit, check with Radio shack to see if they can decode the capacity of the part.

Autozone.com will have Wiring diagrams for free if you register your vehicle with them. The output may be shown.

The days of self-repair for components are nearly gone. An electrical shop may be able to bench repair what you have. You used to be able to get internal voltage regulaors even at K-mart. Now most of the old mechanics are gone and so is the training to repair this stuff.

Jan 05, 2012 | Cars & Trucks

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