When stopped, in gear, foot on brake: the Jeep vibrates loud. When I put it in park or neutral, or when I'm driving, vibration goes away. It seems to be a engine RPM problem. I've reviewed the fixya 96 GC data, and I'm leaning twoards the IAC motor. Any ideas? Thank you.
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Re: 96 GC Orvis-Severe vibration in Idle.
Before you go changing the idle motor, clean the throttle body out with
a spray cleaner and make sure you get into the idle speed motor
orifice. Spray the cleaner into the throttle body with the engine off,
do'nt be afraid to use it all then let it sit awhile. When you try to
start the car it might not want to start, just keep your foot all the
way down on the gas pedal and as it starts and clears up just release
the pedal slowly. If the car smokes out of the exhaust, thats normal.
Hope this works.
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sounds more like a ujoint or a center support for the drive shaft. also check and make sure that the flywheel bolts have not come loose. also check the harmonic balancer and make sure it is not seperating
Is the engine light on? If not, It'probly time for an idle air control valve. Also check the motor mounts. Put the car in drive, hold the brake and give it some gas. Do the same thing in reverse. If the motor moves more than a few inches, you may have a broke motor mount.(you watch the motor, let a friend work the gas)
Did you recently replace the axles on the vehicle? This problem commonly occurs in Subarus when you replace the axles with non-OEM parts. The only fix seems to be to swap out the axles for OEM parts. Search the forums at subaruoutback.org for many stories of the same condition and some theories on why non-OEM axles cause the problem.
First check the brake pads in the car ,also if the car as the ABS in it then it will generate a series of vibration when are applied brakes indicating its working ,if there excess vibration you need get your brakes checked ....
This sounds like one or more of your motor/powerplant mounts is broken. Here is an easy test:
Have someone sit in the driver's sear with engine running and trans. in Park.
You stand in front with the hood open. Have them shift from Park to Reverse, and then Drive and back to Reverse and Park, taking time to stay in each gear and give some throttle while holding the brake pedal tight. This will rock or move the engine a certain amount as they shift through the gears and apply power lightly. It will move alot more violently with broken mounts.
If you have a clunking noise on Reverse shifts, you should be able reproduce this with the hood up and pinpoint the noise and/or sight the faulty motor mount with a friend's help. Good luck, I hope this puts you on the right track to fixing this annoying noise.