Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-18535-potya0js:136:3912)
    at m.mountComponent (/tmp/execjs20161208-18535-potya0js:47:15602)
    at /tmp/execjs20161208-18535-potya0js:49:31860
    at a.r.perform (/tmp/execjs20161208-18535-potya0js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-18535-potya0js:49:31821)
    at r (/tmp/execjs20161208-18535-potya0js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-18535-potya0js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-18535-potya0js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-18535-potya0js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-18535-potya0js:173:8

Q: Knocking under car.

asked by on

I have a very loud knock that sounds like it's coming from the driver's side wheel well of my car. The odd part is, the knock only happens when the car is rolling and the engine is not braking, turning, or under load. So the knocking doesn't happen when I accelerate, it doesn't happen when I brake, and it doesn't happen when I turn. It doesn't just get quiet, it stops completely. I've checked the u-joint, and both wheel assemblies. I'm at a loss...

My car has 200000 miles.
My car has a manual transmission.

A: This is may be anything from wheel bearings...

This is may be anything from wheel bearings to ball joints and struts. The fact that it only happens when the car is rolling and not under a load suggests that it may also be something as simple as something being caught in the wheel or axle assembly. Without hearing the sound, further diagnoses would be difficult. I would recommend having an expert from YourMechanic come to your home to listen and test drive to diagnose and repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: No dash lights or gauges

Hello. The existence of so many non-functioning items would seem to indicate that a main control fuse, and junction box, are not working. Check to see if there are any electrical components that may have been disturbed during the timing...

Q: When do I need a radiator flush?

Hello. Your coolant should be changed as regular maintenance. The coolant in your car should be changed about every 5 years or 100,000 miles, whichever comes first. Having it changed will help the engine and various other components last longer....

Q: When put in reverse, it loses all power

Hi, thanks for writing in. It sounds as though you probably have an electrical short somewhere. It will probably be in an area where the shifter linkage is coming into contact with the wiring when it is put into this...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...