Q: No throttle response until warm, then not very good.

asked by on March 26, 2017

no throttle response when first started. after warm up its a little better, but have to let it wind out and shift to get it to go faster. and ruff idle, ruff when it shifts into overdrive.

My car has 142000 miles.
My car has an automatic transmission.

Loss of power Inspection $79.99 - $89.99 Get a Quote

Hi there. The EBPV (exhaust back pressure valve) is sticking or the EBP (exhaust back pressure) sensor tube is wet which freezes in the cold preventing the EBP sensor from seeing the increase in EBP as you attempt to throttle up the engine. I recommend cleaning the EBP tube and if that don’t work to replace the EBPV. If you need further assistance with your engine not throttling up when cold, then seek out a professional, such as one from Your Mechanic, to help you.

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・Fair and transparent pricing

What others are asking

Why my turn signals don't work?

If both rear turn signal lights are not working correctly, it's most likely due to an electrical relay or fuse that supplies power to the tail lights. However, if it's a fuse, it's likely that the parking lights (when you...

Car won't start and shakes while turning the key - 2003 Saturn L300

Hello. These lights can mean that there is a serious issue going on or that there may be an electrical malfunction. I usually check and see if there is oil pressure and check to make sure that the charging system...

Smell of burning rubber after I changed the belt

You may have one or more pulley with a bad bearing that is causing the pulley to not turn with the belt, causing the burning of the belt. Have the pulleys monitored while holding the engine at 2500 RPM in...

Do my brakes need to be bled?

It is possible that the brakes may just need to be bled. Over time, brake fluid will absorb moisture out of the air. When the fluid absorbs too much moisture, the fluid is no longer able to effectively work, giving...

How do you use the automatic headlights?

If your car is equipped with automatic headlights (optional equipment), you can set them to auto and they will come on when the ambient light level drops by a certain amount. Here’s what you need to know: Turn the...

While driving, car will stall

You will need to have the charging system and battery system checked to see if the alternator is putting out enough volts and amperage to recharge the batteries. The alternator is the most common failure to correct the problem for...

My car won't run when warmed up - 2008 Ford Mustang GT

Hi there. It looks like you have inspected most of the common culprits of a choppy running engine. However, when the vehicle gets hot and has running issues, it's commonly caused by the EGR valve or EGR valve temperature solenoid....

I have no power to the fuel pump or the fuel cut off switch. All fuses are good, what could it be?

Hi there - now that you have checked the fuses (Good job!) check the MFI relay on the under-the-hood fuse & relay box. It controls power to the fuel pump and the engine control unit (ECU). If it is working,...

Flex pipe leak

The flex pipe broke due to the motor mounts are bad and mounts should be repaired first and then an exhaust shop should be able to just replace the flex pipe for you.

Related articles

2012 Ford Focus vs. 2012 Mazda 3: Which One Should I Buy?
Compact sedans and hatchbacks provide a great ride on a budget, with the evolution from a stodgy, unattractive exterior (and interior!) to a more fully-featured trim set and exterior design. Driving enjoyment is improved throughout the class, which are known...
The Top 5 Selling Cars in Kansas in 2012
Kansas Kansas sees a varied climate with all four seasons, which means drivers in the area choose a variety of vehicles. In years past, some of the front-runners have included the Ford F-150, Buick and Toyota Camry. 2012’s top five...
A Buyer’s Guide to the 2012 Ford Fusion
Choosing Choosing a mid-size sedan for your family can be a tough call. There’s a lot of competition out there, including really popular models like the Honda Accord and Toyota Camry. Among all those, though, the 2012 Ford Fusion really...