Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-80463-y6fmoxjs:136:3912)
    at m.mountComponent (/tmp/execjs20161208-80463-y6fmoxjs:47:15602)
    at /tmp/execjs20161208-80463-y6fmoxjs:49:31860
    at a.r.perform (/tmp/execjs20161208-80463-y6fmoxjs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-80463-y6fmoxjs:49:31821)
    at r (/tmp/execjs20161208-80463-y6fmoxjs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-80463-y6fmoxjs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-80463-y6fmoxjs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-80463-y6fmoxjs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-80463-y6fmoxjs:173:8

Q: Truck suddenly has no power, won't rev above 4K, and idles fine.

asked by on

My truck suddenly has no power - top speed maybe 65 mph, slows to 45 or 50 up moderate hills even if I downshift. It idles ok and at low throttle positions and RPM seems normal but still underpowered. Above 3500 rpm it has a rattle, and seems to miss and buck a bit - had the check engine light flashing uphill. Won't rev over 4K with any load at all. Took it in and the shop had it 2 weeks, couldnt find anything for sure but said they thought the exhaust was plugged. Exhaust seems to blow out fine, but could the cats be plugged? Something in the valvetrain bent or broken? Don't think it's fuel delivery as it would still be smooth. Thoughts?

My car has 160000 miles.
My car has a manual transmission.

A: Hello there, many faults will cause a lack ...

Hello there, many faults will cause a lack of power on your 2003 Ford F-150. The most common would be a failed catalytic converter, throttle body plate malfunction, vacuum leak, throttle linkage, fuel pump, or a shift solenoid. When the Check Engine Light flashes this is an indication that something may be damaging the catalytic converter. To avoid any unnecessary repairs, a qualified technician, such as one from YourMechanic, will be able to diagnose your loss of power on site at your own location.

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: How do I stow the third row seats?

The third row seats can be stowed to add extra storage space to your vehicle. To stow the seats, follow these easy steps: 1. Make sure no objects are on the seat, or in front of it. 2. Make sure...

Q: Oil buildup in boot

You are already on the right track with knowing that your Toyota RAV4 will be needing the valve cover gasket replaced. Oil should never enter the spark plug tubes as this can cause damage to the ignition system, mainly to...

Q: Car slightly jerks, stalls, and then restarts

Hello. A faulty coil pack is likely the cause of the issue you are having. A less likely cause could be a clogged fuel filter or fouled spark plugs. I suggest that you have a technician inspect your coil pack...

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...
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...