ENGINE SHAKING LIKE IT HAS A VACUM LEAK?

1993 Mitsubishi Expo

Tiny

starsky_33

October, 11, 2011 AT 5:20 AM

I check spark plug look bad so I change them but it still shake when driving it feel like there a leak somewhere are something? Please help

FOUND 470 RELATED QUESTIONS

6 Answers

Tiny

rivermikerat

October, 11, 2011 AT 5:23 AM

It sounds like maybe a vacuum leak, timing issue, or crossed plug wires.

Tiny

rivermikerat

October, 11, 2011 AT 5:26 AM

I use a can of carburetor and choke cleaner to check for vacuum leaks normally.

Tiny

starsky_33

October, 11, 2011 AT 5:35 AM

Check them there are all good? Could the fuel filter are 02 do this

Tiny

starsky_33

October, 11, 2011 AT 5:38 AM

Try it and look at it there all good ! Could the 02 are fuel filter do it are cause it

Tiny

starsky_33

October, 11, 2011 AT 5:42 AM

I do have one question? Could the spark plug wire be bad even if it look new?

Tiny

rivermikerat

October, 11, 2011 AT 7:13 AM

Yes it can. The O2 sensor can, if malfunctioning badly enough, it can cause the computer to hold the injectors open longer than necessary, causing an extremely rich condition which can cause a rough idle.

Check to see if it's throwing any codes, whether hard or soft.

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