Posted on Nov 06, 2008

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1998 nissan frontier misfireing

Truck shakes when you first take off and when you try to hold it at steady speed

1 Answer

Rommel Balcita

Master 749 Answers
Posted on Nov 06, 2008

Rommel Balcita

Master

Joined: Oct 27, 2007

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Check spark plugs.
with the engine running (idle)
disconnect one spark plug cable,
see if your engine goes at lower speed or notice engine speed variation.
if it does, the spark plug is OK. it no change, the spark plug is bad.
reconnect the first one then disconnect the next plug.
do this untill at the last spark plug connection.

Anonymous Sep 23, 2012

I have a 99 nissan with the same exact symptoms!!! I was first told knock sensor, replaced that no change! Next told spark plugs, just like you said, replaced all six of them and again no change! I'm now on too checking all the injectors and then onto map sensor and so on... But I've been all over very car/truck site I can find or that is in english and still can't find an answer or solution! Not even a good direction to go from here... Just wanted to put that out there.

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