Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-33384-1fui5h0js:136:3912)
    at m.mountComponent (/tmp/execjs20161208-33384-1fui5h0js:47:15602)
    at /tmp/execjs20161208-33384-1fui5h0js:49:31860
    at a.r.perform (/tmp/execjs20161208-33384-1fui5h0js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-33384-1fui5h0js:49:31821)
    at r (/tmp/execjs20161208-33384-1fui5h0js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-33384-1fui5h0js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-33384-1fui5h0js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-33384-1fui5h0js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-33384-1fui5h0js:173:8

Q: My car's fuel efficiency is poor and it starts rough

asked by on

I got my car read at autozone and they told me it's either the gas cap that went bad which I replaced still doing the same thing, purged solenoid canister, but I think it's the MAF also I noticed that my dipstick tube is non existing it's just the stick and oil is leaking but has no signs in the driveway

My car has 146000 miles.
My car has a manual transmission.

A: There is a valve that is by the fuel neck n...

There is a valve that is by the fuel neck next to the fuel filler inlet that measures the fumes from the gas cap and related areas. This valve is known as the EVAP purge solenoid valve. This valve controls the pressure in the fuel system.

If the valve fails, it will leak and the fuel vapor sensor will pick this up. When the valve fails, the computer will increase the amount of fuel to max and cause the engine to run rich and have a rough idle.

Check the valve with a fumes sniffer and see if there are any vapors present. If so, then the valve needs to be replaced. If there are no fumes present, then the valve still could have failed electronically.

If you need further assistance with your vehicle, then seek out a professional, such as one from YourMechanic, to help properly diagnose your car's rough idle and help you fix it accordingly.

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: Rough idle and no power - 2004 Ford Ranger

Hi and thanks for contacting YourMechanic. Check the spark plugs and plug wires to the cylinders. Make sure that there is spark to the plugs. If there is no spark to the plugs, then check the harness to the...

Q: How do I view the average fuel economy in the multi-information display?

The average fuel economy shows you the mpg that your vehicle has been averaging while you drive. The average fuel economy is tied to the trip meters, and will be reset when the trip meters are reset. You can access...

Q: High fuel consupmtion

Hello there. Many common faults will cause your 1990 Toyota Corolla to consume excessive fuel. The most common causes are leaking fuel injector, vacuum leak, a faulty MAF sensor, fuel leak, spark plugs, plug wires, or an ignition coil. If...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.