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1985 Chevrolet C20

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Airtex 5S2155 Ignition Knock (Detonation) Sensor
for 1985 Chevrolet C20

Airtex 5S2155 Ignition Knock (Detonation) Sensor - 1985 Chevrolet C20

Airtex
Brand:Airtex
Part Number: 5S2155
UPC: 080044666820
Weight: 0.22 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Airtex 5S2155 Ignition Knock (Detonation) Sensor for your 1985 Chevrolet C20. Buy now and secure your purchase online!

The Ignition Knock (Detonation) Sensor, also known as the Knock Sensor or KS, "listens" for certain harmonic frequencies associated with engine knock or "ping" and sends a voltage signal to the Engine Control Module (ECM) when detected. The ECM calculates proper ignition spark timing based in part on the Ignition Knock (Detonation) Sensor's signal. A malfunctioning or inoperative Ignition Knock (Detonation) Sensor can allow engine knock or ping to occur for which the ECM would otherwise adjust ignition timing to eliminate. It can also cause the Check Engine Light (CEL), Service Engine Soon (SES) or Malfunction Indicator Lamp (MIL) to illuminate and can set a trouble code (P-code) in the ECM when not functioning correctly. Not correcting a failed Ignition Knock (Detonation) Sensor condition can cause reduced fuel mileage and performance under load, increased emissions and damage to other components. Prolonged engine knock can cause internal engine damage from the piston skirt "slapping" against the cylinder wall.

Specifications:

Connector Gender:
Female
Connector Quantity:
1
Connector Shape:
Round
Length:
2.13 in.
Mounting Hardware Included:
No
Terminal Quantity:
1
Terminal Type:
Pin
Country of Origin:
MX

Airtex 5S2155 Ignition Knock (Detonation) Sensor compatibility with your 1985 Chevrolet C20...

Last Updated: 11/09/2018

Years Vehicle Per Vehicle Fit NotesFitment Notes

1986

 

1985

 

1986

 

1985

 
Chevrolet C20

4.3L V6 Gas OHV
1
 
without California Emissions
 

Chevrolet C20



4.3L V6 Gas OHV without California Emissions

1 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Chevrolet C20

5.0L V8 Gas OHV
1
 
 

Chevrolet C20



5.0L V8 Gas OHV
1 Per Vehicle

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