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1996 Chevrolet Blazer 4.3L MIL Lamp on
Posted to GM Driveability on 9/4/2003 7 Replies

Repair info I have from 2 sources says that knock sensor should drag 5V reference voltage in circuit down to about 2.5 volts. It is 4.5V. Sensor resistance is 100 K-ohms (correct as per Alldata). Does the high voltage reading mean that the knock sensor is bad?

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  Related Documents & Media  1996 Chevrolet Blazer

 
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet Blazer

VIN 1GNDT13W6T
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / Vortec
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter Short Drive
Misc.4WD

Trouble Codes

P0325Knock Sensor 1 Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet Blazer

VIN 1GNDT13W6T
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / Vortec
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter Short Drive
Misc.4WD

Trouble Codes

P0325Knock Sensor 1 Circuit Malfunction