1989 Chevrolet Silverado 2500 - Answered Questions & Fixed issues

possible crank/cam shaft position sensor
run the fault codes

1989 Chevrolet... | Answered on Jan 31, 2018 | 58 views

i really know anything about a powerbooster

1989 Chevrolet... | Answered on Nov 21, 2017 | 86 views

Check and clean the egr valve and passages beneath it.
Here is a listing of GM OBD1 codes:

1989 Chevrolet... | Answered on Nov 22, 2013 | 63 views

Start by checking the bulbs and the sockets and the wiring. look for discoloration and bare/ cracked wires. Fix or replace as necesary.

1989 Chevrolet... | Answered on Feb 01, 2013 | 193 views

Sounds like you have two problems, rough idle from an 89 would indicate mutliple problem possiblilities. Spark plugs, timing chain, injectors, coil pack, vacuum hose corrosion. Start there and if that doesnt solve the idle issue its time for a mechanic or a trade in.

For the no downshift, slow down lol. It could be an out of spec throttle cable. Check to make sure the cables are free and clear of debris and no kinks are present. The throttle linkage should move freely while the engine is off and again while running, be careful here.

Unfortunatly we may have to face the truth the old girl just doesnt have it in her anymore. Take it slow and easy, shes earned it.

1989 Chevrolet... | Answered on Dec 24, 2012 | 100 views

Are you certain you were on TDC of compression stroke? If you were on exhaust stroke, your dist. will be 180 degrees off.
If timing is right, check for spark. You need to see a blue snapping spark at the end of the sparkplug wire to know ignition is good.

1989 Chevrolet... | Answered on Jul 10, 2012 | 109 views

Well usually a factory installed bumper has no adjusting slots. Some aftermarket bumpers do so they can fit different models.
I guess you could try it if the brackets are not bent.

1989 Chevrolet... | Answered on Jul 03, 2012 | 160 views

Hope this helps

1989 Chevrolet... | Answered on Mar 14, 2012 | 2,257 views

If the starters old it gets build up on the insides & on cold mornings the steel contracts cuasing the soliniod to lock up try pooring hot water over the solinoid part of the starter motor as a quik fix :)

1989 Chevrolet... | Answered on Oct 22, 2011 | 74 views

take the tank down and replace the float on your fuel pump

1989 Chevrolet... | Answered on Sep 24, 2011 | 78 views

there is a daytime running light module located under the dash to the right of the steering column

1989 Chevrolet... | Answered on Jan 02, 2015 | 213 views

In the repair section you should be able to find wire diagrams. You have to register but its free to do (and diagrams are free as well)

1989 Chevrolet... | Answered on Aug 30, 2011 | 131 views

Lots of possibilities. Sounds like you could have a catalytic converter plugged. Remove the oxygen sensor and star and run the truck to see if it still acts the same. Fuel filters can act similar, but would not be engine temp related, only time related. Also I have seen oxygen sensors make vehicles run bad, and with your 89, it is a non-heated sensor, which would take control once the engine gets warm. those early non-heated units are inexpensive, and if you are removing it to check the converter, you might as well replace it anyway.

1989 Chevrolet... | Answered on Oct 08, 2011 | 182 views

I believe that car MAY have a wiper recall. Check the net or with a dealer. Models a few years later had the recall. There was a problem with the circuit board that controls the wipers. My 95 Astro had this problem. The car may have the same wiper configurations as the 95. If you are handy with electronic boards you can replace the board or you may be able to repair it. The board is in the box next to the wiper motor. The electrical connection connects directly to the board. Over time the connections for the plug break the solder joints on the board. Take a close look at these solder connections on the board. If they are loose or cracked, resolder all of these connections. They are all in a line on the edge of the board. While you have that apart, check the brushes that connect the motor to the board. There is a circular disc with copper tracks. The brushes and tracks become dirty and don't make good contact. Clean them and apply a light coat of grease. I hope this is helpful for your model car. Mine had the very same problems until I fixed the board. Good Luck

Thanks for using FixYa.


1989 Chevrolet... | Answered on Jul 28, 2011 | 109 views

Slide in under the truck just behind the cab on the drivers side and look up INSIDE of the frame rail and you will see it.

1989 Chevrolet... | Answered on Jan 27, 2015 | 278 views

Did anything say head lamp?

1989 Chevrolet... | Answered on Mar 06, 2011 | 241 views

First thing I would do is trans fluid & filter change. It should be done every 50k and sooner if you tow. Sounds like your filter is partially clogged.

1989 Chevrolet... | Answered on Mar 01, 2011 | 147 views

There should be an aldl (assembly line data link) plug under the drivers side of the dash. Ground the A and B terminals and turn the key to the run position. Count the number of times the check engine light flashes.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

1989 Chevrolet... | Answered on Jan 13, 2011 | 599 views

Sounds like the switch is working, as you are getting the lights to go on and off, so I would say it's your adjustment.

1989 Chevrolet... | Answered on Jan 02, 2011 | 556 views

Open the glove box AAAAAll the way. Slip the tabs on the back past the stops and make sure the blend door is operating properly.

1989 Chevrolet... | Answered on Dec 19, 2010 | 146 views

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