How to replace horn on 1998 chevy c2500 pickup

• Chevrolet C/K( k= 4wd) pickups.
• Chevrolet Silverado?
• Chevrolet Suburban(no)

USA car or not in N.America at all??????????
which one is it, Sierra is a sub model class not a truck actual.
I will guess C1500????? pickup truck? 2wd./
scan the PCM yet, using any OBD2 scan tool for DTC errors?


it is not bad, 99% are not bad so no need to find it.
why not post a problem and not hunts.
the service manual on the car and google searches ends the hunt.



the knock sensor allows the PCM to tune spark timing to use poor grade fuel. and not allow knock and ping. it does that endlessly.
but if say you heard the engine ping, that is a dead EGR

PING (knock or detonation) is caused by poor fuel and crazy high combustion temps.
The EGR system cures it. (and must be cleaned or fails)
some trucks run spec cams that stop PING>
and some use those and a knock sensor..
it is a microphone ,sensor. and if engine bearings pound load

the KS1 sensor lies., to you. (and the PCM)
example rod knock or piston slap noises.


what truck is it,from USA 1998 list
1998 (sierra is a sub class not an actual truck) see?
Toggle C1500 PICKUP
Toggle C1500 SUBURBAN
Toggle C2500 PICKUP
Toggle C2500 SUBURBAN
Toggle C3500 PICKUP
Toggle FORWARD
Toggle JIMMY
Toggle K1500 PICKUP
Toggle K1500 SUBURBAN
Toggle K2500 PICKUP
Toggle K2500 SUBURBAN
Toggle K3500
Toggle K3500 PICKUP
Toggle P3500
Toggle SAFARI
Toggle SAVANA 1500
Toggle SAVANA 2500
Toggle SAVANA 3500
Toggle SONOMA
Toggle T SERIES TRUCK
Toggle TOPKICK
Toggle YUKON
the knock sensor
looks like OIL sender, or desk knob round.
newer 4.3L has 1 KS1, and KS2 sensors one per bank.
1998 , it is one, sensor, rear left of distributor.
left means (USA drivers left side) perspectives.

first google hit found it.




dead egr , cleaned or replaced seen here


https://www.rockauto.com/en/catalog/gmc,1998,c1500+pickup,4.3l+v6,1304659,exhaust+&+emission,egr+valve,4968

There are some connectors behind your steering wheel that may be messed up. My 1999 chevy s10 had a dysfunctional horn I had to remove the airbag from the steering wheel to access the wiring harness to the horn and i had a broken wire that caused the horn not to work I replaced that and problem solved. Also Your actual horn is usually located in your front bumper and that may be damaged if it is replacing it will fix the problem. Hope this helps good luck

It is really very simple. The horn lead with the plastic connector and the spring pushes in and turns to lock in the large round hole at the upper left center of the steering wheel. If you look into the hole, you will see the contact down in there with a plastic "tube" with a slot in it for the horn connector to go into.

The ground clip (wire with brass or steel clip on it) simply pushes into the hole in the steering wheel center near the bottom (It grounds to the steering wheel center).

The horns should be located behind the right and left inner fender wells.

disconnect the negative batery terminal be fore you mess with the horn. the cover should come off easily and you will the wire for the horn on my car the wire is green

http://www.nissanextendedwarranty.com/owners-manual/nissan/1998-Nissan-Frontier.pdf

Page 169 shows you where the fuse box is located. Check the fuses and if there is one that is blown replace it with the same amp fuse.

Hope this helps.

in case you didnt know there are five horns i to have a 98 deville delegance 2 are under car 1 next to the battery I honestly cant remember where the other 1s are but wen you look at the 1 by the battery look 4 4 more of those its probably a fuse or relay if they all stopped working at once. hope help.

find a used headlight assembly on eBay. buy it and install it.

clutch is bad

You most likely need a new clock spring rotating contact under the steering wheel, it is a plastic ribbon with wire in it to connect the horn button and other accessories to the steering wheel while allowing the wheel to turn.