what may be causing the knocking in the engine while my lexus is in idle

Asked by May 09, 2013 at 11:41 PM about the 1992 Lexus SC 400

Question type: Maintenance & Repair

2 Answers

a vacuum leak.

225

Is it a "knock" or more like a "tick"?

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • High idle on 1997 sc400 1 answer

    Car idles very high and it erratic, 900 to 1400 rpm s......causes ?

    1997 Lexus SC 400 Base

    -

    Maintenance & Repair

  • SC400-SC300 PROBLEM 1 answer

    HI I WAS WONDERING WHERE YOU GET UR AFTERMARKET PARTS . DOES THE SC400-SC300 HAVE IDLE PROBLEMS AND HOW DO YOU FIX IT ..

    1995 Lexus SC 400

    -

    General

  • 2008 lexus Ls 460 idles rough is this common for this vehicle? What could be causing this problem? 1 answer

    what could be causing my 08 LS to idle roughly?

    2008 Lexus LS 460 Base

    -

    Maintenance & Repair

  • 2008 RX350 Engine problem 33 answers

    My 2008 RX350 stopped while I was driving slowly due to heavy traffic - there wasn't any abnormal sound or shaking before that. I tried to restart, but it couldn't. So I had it towed to a Lexus deal...

    2008 Lexus RX 350 FWD

    -

    Maintenance & Repair

  • Knocking in the motor 1 answer

    When I start my car and leave it idling it starts knocking but then it goes away.

    2000 Lexus ES 300 Base

    -

    Maintenance & Repair

Search Lexus SC 400 Questions

Lexus SC 400 Experts

#1 Mick Ireland
Mick Ireland
Reputation 60
#1 Russell Murray
Russell Murray
Reputation 60
#3 Tom Demyan
Tom Demyan
Reputation 50
View All

Related Models For Sale

Used Lexus SC 300
36 listings starting at $3,900
Used Lexus LS 400
226 listings
Used Ford Mustang
462 Great Deals out of 45,656 listings starting at $1,999
Used Lexus GS 300
29 Great Deals out of 770 listings starting at $2,495
Used BMW 3 Series
989 Great Deals out of 31,781 listings starting at $1,000
Used Toyota Supra
44 listings starting at $63,800
Used Chevrolet Camaro
215 Great Deals out of 30,767 listings starting at $1,217

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.