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ML320 Mod 98 rough idling
my truck's engine have rough idling, i changed the ignition coils and the spark plugs, and cleaned the injectors, still rough idling exists. :rolleyes:
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does the engine have any vacuum leaks? e.g. the smaller breather pipes connect to the manifold which has high vacuum when idling, leak there will cause uneven idle.
MAF in good condition? any check engine light? |
I dont know how to chek if there is vaccum leak. If u have any information about this issue (how to check the vaccum leak). Thnks for your help zulfiqar.
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No check engine light.
What is MAF? |
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