Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-99848-u0syexjs:136:3912)
    at m.mountComponent (/tmp/execjs20161208-99848-u0syexjs:47:15602)
    at /tmp/execjs20161208-99848-u0syexjs:49:31860
    at a.r.perform (/tmp/execjs20161208-99848-u0syexjs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-99848-u0syexjs:49:31821)
    at r (/tmp/execjs20161208-99848-u0syexjs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-99848-u0syexjs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-99848-u0syexjs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-99848-u0syexjs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-99848-u0syexjs:173:8

Q: How difficult is it to replace a valve lifter and/or is it something worth taking to a mechanic?

asked by on

There is a loud knocking and my grandpa, who is somewhat of a mechanic, believes it to be a lifter that is causing the issue. The car struggles to accelerate and will die if driven for longer than approximately 20 minutes.

My car has 130000 miles.
My car has an automatic transmission.

A: Hello, thanks for writing in. Having lifter...

Hello, thanks for writing in. Having lifters and valves replaced is best left to the professionals. Many times this can involve removing the cylinder head from the engine which will have an affect on the timing. Special procedures need to be taken to ensure that a vehicle has the correct timing. If a vehicle's timing is incorrect, it can cause severe damage to the engine. Another benefit to having this repair done professionally is that you will likely have a warranty on any repairs performed. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Replaced battery lights and radio on but car won't start

Recheck your work and make sure the battery terminals are clean and tight. Do not wrench all the way down on the fastener, just tighten and wiggle the clamp until it won't move on the terminal anymore. Sometimes a failed...

Q: Loss of reverse on a BMW 74 DI

If you are going to continue to drive it, you are going to need a new transmission, or you either park where you never have to back up. I said that to a customer with a BMW who did that...

Q: I'm having a problem with my car shifting hard in first and second gear it does this after about 20 mins of driving it

Hello. From what you describe it would appear that your issue may be occurring after your vehicle warms up. The first thing I would do is check your vehicle's transmission fluid to see if it may perhaps be low or...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...