Question about 1990 Chevrolet K1500
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Posted on Jan 02, 2017
These sensors are quiet a problem. They are located under the intake and normally go off because the engine got washed sometimes the water will evaperate and the problem goes away but anymays the intakes gota come off there are 2 of them so i would recomend replacing both while ur at it
Posted on Dec 18, 2008
In the valley under the intake, one in the front and one in the back.
It takes about 3 hrs to replace them and it's going to run you around $140 for parts. However, they rarely go bad. Usually it is due to wire chaffing or corrosion due to a coolant leak.
Posted on Dec 19, 2009
SOURCE: 2000 chevy silverado 1500 4.8
It could be that your knock sensor circuit is working perfectly.You may have a knock that it is reading for long periods.
Try running it disconnected, and see if there is a clatter or knock when accelerating lightly.
You could have a vacuum leak.
Posted on Feb 25, 2010
The knock sensor is llocated on the left side of the engine block and is a single wire connector. Disconnect the wire and simply unscrew the sensor. Don't worry. There will be no fluid leaking. No tricks.
Posted on Mar 25, 2010
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