This question has been addressed sooooo many times. Check the idle
speed with the A/C turned ON. Must not be below 700 rpm in DRIVE. It
if is, the normal engine shake will worsen. There is an "idle up"
diaphram on the intake manifold that is adjustable .... providing it
I've been running 87 octane for a few weeks in my Celica.
I am going out of town this weekend, so I filled up with 93.
For the past couple weeks, i've had a solid engine mount on the driver's
side, to which I've incorrectly attributed all the vibration -- my car seems
to notice a difference between 87 and 93 and vibrates *less* at idle with
Just one person's observation.
Many Thanks to you all. I'll try and keep you guys posted. BTW, Do you
guys know other toyota groups other than google groups? Thanks again.
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