1990 240sx Engine vibration problem.

Post by **thekawaii** » Wed Feb 06, 2008 2:02 pm

1990 240sx 5 speed with 150k miles.

When the engine is cold, it runs smoothly. But when Engine gets hot, it starts vibrating violently at Idle.

Also noise comes from the hydraulic lifter. I did leak down test, result came out good.

New Fuel pump.Checked the injector connectors.Runs pretty good on highway.Kinda slower than other KA24E

MaximA32 · Post by **MaximA32** » Thu Feb 07, 2008 10:31 am

Have you ever cleaned your IAC/V? I would suggest doing that and see if it changes anything.

Post by **TokayanaWayIsHome** » Fri Feb 08, 2008 9:11 pm

on my 240 it was my spark plug gap for the most part they were down around .026" i opened to .040" and she purrs now

Post by **thekawaii** » Tue Feb 12, 2008 7:49 am

Like you said, NGK recommended 0.44" on SOHC KA24.

I'll try those. Thank you guys for help.

1990 240sx Engine vibration problem.

1990 240sx Engine vibration problem.

Re: (NSR A32)

Re: (TokayanaWayIsHome)

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