1978 datsun 280z

 Auto Repair Questions, Datsun
Feb 172013
 

My Z car (standard 4 speed ) doesn’t idle down when at a stop sign, and occasionally the engine revs to 3000 RPMs when sitting at a stop sign, any suggestions?

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  One Response to “1978 datsun 280z”

  1. Freeautomechanic says:
    February 18, 2013 at 9:42 am

    The most common cause for this issue would be vacuum leak. You will need to look closely at all your engines vacuum lines and hoses for a crack or hole. Replace them as needed.

    A trick I use to help locate vacuum leaks is to spray brake wash around the hoses with the engine running and listen for a change in the engine.

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