civic91

Just got another car, its a 1991 RS (auto). Here's what I noticed, the car vibrates/shakes every time I stop. When I put it in N the car stop vibrating/shaking. What do you think the problem?

JunkyardGSR

Probably worn out motor mounts. When you engage drive it loads the torque converter and places pressure on the mounts. You're feeling the engine's vibrations. Does the idle change at all, irratic?

civic91

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JunkyardGSR &raquo;</TD></TR><TR><TD CLASS="quote">Probably worn out motor mounts. When you engage drive it loads the torque converter and places pressure on the mounts. You're feeling the engine's vibrations. Does the idle change at all, irratic?</TD></TR></TABLE>

Idle is normal, only when I stop the car behave like it will fall apart. Is motor mounts expensive to fix?


Modified by civic91 at 1:03 PM 6/20/2006

JunkyardGSR

the mounts themselves arent all that expensive. There are polyurethane bushings you can put in them to tighten them up, those are expensive. And the labor to install all this stuff, that gets really expensive. Here's a test to check the mounts. With the car in park and the hood open, have a friend look at the engine while you shift from park, neutral, reverse and drive. (Hold your foot on the brake, dont run over your friend) Check for abnormal amounts of slop in the engine when you change the gears. If the mounts are broken are worn, the engine will pitch violently in the engine bay. Here's an old DSM trick to fix the problem. Go to home depot and ask for a product called "window weld." It's an epoxy that hardens when it dries and it will tighten up the slop in your stock bushings, but at the risk of making your car rattle even more (this is a performance trick to tighten up the shifting and motor torqueing on higher HP cars). GL