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1998 Vauxhall Vectra

Tiny
KYLIE.DORAN
  • MEMBER
  • 1998 VAUXHALL VECTRA
Engine Mechanical problem
1998 Vauxhall Vectra V8 Two Wheel Drive Manual

new cam and followers and still sounds cammy on no.1 cylinder?
Thursday, February 26th, 2009 AT 11:56 AM

5 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
What is the noise you are getting? Explain "cammy" for me. Is it a. Tick tick. Could it be a slight exhaust manifold gasket leak?
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Thursday, February 26th, 2009 AT 9:04 PM
Tiny
KYLIE.DORAN
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Still sounds cammy on no1 cylinder. More like a "quick knocking" sound.
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Sunday, March 1st, 2009 AT 7:16 AM
Tiny
DAVE H
  • MECHANIC
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Could be a bad knock sensor signal affecting the timing?

Knock Sensor
The Knock Sensor (KS) is a tuned accelerometer located on the engine, which converts engine vibration to an electrical signal. Powertrain control module uses this signal to determine the presence of engine knock and retards spark timing accordingly.
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Sunday, March 1st, 2009 AT 8:59 AM
Tiny
KYLIE.DORAN
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  • 3 POSTS
Does that mean the sensor could be faulty? Would it require a new one?
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Sunday, March 1st, 2009 AT 4:36 PM
Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
It may not have been tightened back up when repalced. Or may be faulty. Sometimes when timing is slightly out engine gets hot and you get a spark knock. This could be the knocking you are hearing? Who did the repair?
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Sunday, March 1st, 2009 AT 6:57 PM

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