Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-99848-pkbvj5js:136:3912)
    at m.mountComponent (/tmp/execjs20161208-99848-pkbvj5js:47:15602)
    at /tmp/execjs20161208-99848-pkbvj5js:49:31860
    at a.r.perform (/tmp/execjs20161208-99848-pkbvj5js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-99848-pkbvj5js:49:31821)
    at r (/tmp/execjs20161208-99848-pkbvj5js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-99848-pkbvj5js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-99848-pkbvj5js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-99848-pkbvj5js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-99848-pkbvj5js:173:8

Q: I removed the left head and the shop found 2 cracks, should I go ahead and replace both heads or just the known bad one?

asked by on

The machine shop said the left head had 2 large cracks probably caused by overheating. Should I just replace this head (it was leaking exaust and fluid and was the reason for taking it to the shop) or is the other head probably cracked too and I should just go ahead and replace both?

My car has 115000 miles.
My car has a manual transmission.

A: I would recommend removing the other head a...

I would recommend removing the other head and inspecting it for cracks also. I would recommend having the head overhauled, and if needed, replacing it then. If you can get them cheap enough, I would suggest replacing both heads if possible.

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: Can't drive car due to overheating

Overheating is never good on a vehicle, it is similar to a person having a stroke. Every time an engine is overheated there is some kind of internal damage. Sometimes the damage is so bad that major repairs are needed....

Q: Reliability and the four wheel drive system - 2016 Subaru Forester

Hello. I will be glad to help you relative to your question about the reliability of the 2016 Forester. "Reliability" data on all vehicles is available from at least two very significant and authoritative sources. The first is the NHTSA...

Q: Wire came off of starter

Hi, if this is a large diameter wire like a battery cable then it may be the cable to the starter terminal. If it is a smaller wire, it may be a memory wire for the engine controls and things...

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.