schematics and diagrams: car vibrates

Thursday, May 24, 2012

2006 Ford Focus: Steering Wheel shakes and vibrates?

While driving the vehicle at highway speed the Shaking and vibration is noticed on steering wheel for few seconds.

This is not constant vibration.It just shakes for few seconds then again stops and then again vibrates and this cycle continues.

In this types of cases first see do you notice any type of check engine light or any other warning lif\ght coming up on dash.If YES,then get the vehicle computer scanned to retrieve error codes stored in computer.That error code will point towards faulty part and you can continue your troubleshooting.

But if there is no warning light at all then its not error code related.

Then other thing to be inspected is noise.When the vehicle shakes and vibrates do you hear any king of clicking or rumbling or ticking noise from any where or its not making any noise.If its making any noise then reach that area from where noise is getting heard and from there you can start making your further troubleshooting.

But if no noise is heard and just the shake/vibrate issue then ,

usually a shaking/vibration felt in the steering wheel is tire/wheel related, but may be in the drivetrain, so we need to isolate the area of concern which is quite easy to do.

Take for a test drive and get up to highway speed where the shaking occurs. As soon as it starts shaking put the transmission in neutral. If the shaking immediately goes away, then it is drivetrain related. If shaking is still there, then it is in the tire/wheels area.

If tires/wheels, first the tires need to be carefully inspected for signs of belt separation - knots or goose eggs on tires, lumps on sidewall of tire, irregular tread wear, and also check for dents in rims. If all are ok, then the wheel hub bearings will need to checked for play and replaced as needed.

If shaking immediately stopped when put in neutral, then cv shafts need to checked for excess play, and right side cv axle needs to be checked for center bearing being bad. If cv shafts are good, then the transaxle itself will need to be inspected.

This details will help.
Thanks.

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Tuesday, November 29, 2011

Car Vibrates in both drive or neutral?

If you need dis-assembly or replacement instructions for any other auto/car part, or you want to ask question related to your car/truck jeep problem then please leave the comment with your details, so I can provide you the required instructions and solutions.

This vibration problem is noticed by many car users.
Get a friend to open the hood and look at the engine go up or down in the engine compartment when the brakes are firmly applied and switching between reverse and drive. Look for the motor mounts for behavior where tears exist in the rubber.Hard (from age and heat) or broken engine and transmission mounts will cause this type of vibration. Based on many repair experiences with this type of vibration on mostly 4 cylinders I would replace all the mounts, both the engine and transmission, leave the bolts loose that retain the engine in the mounts, then with the motor mounts and transmission mount still loose run the engine and shift back and forth from drive to reverse and then back to neutral, this relieves any stress from misaligned engine mounts and reduces vibration. Also make sure the exhaust isn't touching the frame anywhere, that will also cause vibration to be felt at or near idle, worse when put in gear. If all of the above don't help then you may have a torque converter problem is it is an
automatic transmission.
Bad transmission mount will give constant vibrations on the road.very annoying. Often, bad motor mounts allow the engine to rock and move around, causing noise and interference problems with the throttle, transmission and clutch linkages. For example, a thumping noise when the transmission is put into gear or when the vehicle is accelerating is a classic symptom of a bad mount. also when climbing hills it will jump around. from the strain going up hill, that is putting torque on the engine. good-day ! on most vehicles you can start the vehicle, then put foot on brake.Have someone watch engine when putting torque on it. if the mounts are bad. you will see engine move or bad vibration.

This details will help.Thanks.

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