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Knock Sensor 700 1989

posted by  Tankdriver on  Mon Sep 1 15:11 CST 2003
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Does anyone know where the Knock sensor is located and if it can cause hesitation on acceleration?? Thanks, Tank








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eh eh. hesitation almost invariably TB cleaning or vacuum leak. 700 1989

posted by  JohnBin on  Tue Sep 2 04:11 CST 2003
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Yes, there may be something else wrong but check these first.

If you really want to check the sensor, disconnect it and unscrew the mounting bolt from the engine, reconnect it to the harness and wrap the sensor/connector in a shop rag and cable tie it loosely. The sensor will thus not detect any significant vibration. If hesitation goes away, it's likely the knock sensor; if it doesn't go away it's not necessarily NOT the sensor, it's just that you'll have to replace the sensor or G2 the harness to find the source.

But I stand by my original comment...not likely the knock sensor. Find the vacuum leak.








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Knock Sensor 700 1989

posted by  Patch on  Tue Sep 2 03:46 CST 2003
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last visit: Wed May 28 00:36 CST 2008
[RELATED]

Tank,
What's your car doing under acceleration?
Is it a turbo?








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Knock Sensor 700 1989

posted by  invar on  Mon Sep 1 16:17 CST 2003
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last visit: Fri Feb 26 21:00 CST 2010
[RELATED]

http://www.brickboard.com/FAQ/700-900/EnginePerformanceSymptoms.htm#SlightHesitationonAccelerationSeveralDiagnosticChecks

on a B230F, it is located under the intake manifold between runners 2 and 3.
--
Kenric Tam
1990 Volvo 740 base sedan (B230F)
My Volvo 'Project'







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