Q: Lack of power and fuel smell

asked by on January 22, 2017

My car is losing power. I can have it floored but only go 20 mph why is it doing that plus it is smelling like gas on the outside and the inside real strong what is causing this
My car has an automatic transmission.

Catalytic Converter Replacement $279.51 - $3103.51 Get a Quote

It sounds like you may have a clogged catalytic converter. The catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere. When this is clogged, this causes these gases to be backed up into the exhaust system not allowing the engine to breathe properly. When this happens, the engine is forced to work much harder to expel these gases. This often results in the engine bogging down, hesitating, shaking and causing very poor fuel economy. This should also cause a check engine light to come on as the O2 sensors should be reading the incorrect amounts of oxygen in the exhaust gases if this is your problem. I would recommend having an expert from YourMechanic come to your location to diagnose and replace your catalytic converter.

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

Suzuki Grand Vitara with P0717 code.

Hi there: In most cases the wheel sensor or the electrical harness attached to the sensor is the source of this error code. You might want to replace both, reset the ECU and see if the code goes away. If...

Car shudders whenever I brake at a speed of 60-70 mph

The control arm bushings need to be checked. Worn out control arm bushings will change the toe setting at higher speeds, causing the front tires to fight one another. It will also cause a feathering wear to occur on the...

Shaking and wants to stall

Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal...

How many crankshaft position sensor are there? 2002 Infiniti QX4

Hello - there is only 1 crankshaft position sensor on this engine. It is located on top of the transmission bellhousing at the rear of the engine (driver side). For assistance, I recommend a crankshaft position sensor replacement performed by...

I installed a after market radio in my 2002 Cadillac Deville and no sounds will come from my speakers. But when I put my stock rad

Your car might have a built in amplifier that requires a 12 volt signal to be sent in order to turn on the amplifier. The wiring harness for your stock radio may already accommodate that but the new radio has...

After doing a head gasket on a 2002 3.9 Dakota, how long will it take after starting it will it take to start to run normally?

Unless your repair involved replacement or modification of engine controls, such as the IAC valve or throttle position sensor, the instant you start the truck after replacing just a, or both, head gaskets, the engine should operate normally. If the...

Truck overheating coolant not cycling throughout engine. 2002 Chevrolet Silverado

Hey there, thanks for writing in. You need to make sure all the air was purged out of the cooling system. If you did not get at least 2 gallons of coolant mix in the engine, then you may have...

Car idling high

Unfortunately it looks like there can be a few different reasons as why your Ford Taurus is idling high. Some of these causes for high idling could be a failing Mass Airflow sensor, a faulty Idle Air Control Valve or...

My blower motor is bad, should i replace the resistor also?

Hello. We do suggest that you replace the resistor at the same time. It may not be critical, but this will keep the system more uniform. The issue may even be related to the resistor. If you know that it...

Related articles

Understanding the Mercury Intelligent Oil Life Monitor and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Mercury Intelligent Oil Life Monitor indicates when and what service your car needs.
Mercury Certified Pre-Owned (CPO) Car Program
Drivers Drivers who are shopping around for a used Mercury vehicle may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on to...
How to Use a Ryko Automatic Car Wash
If If you’re wondering how to use a Ryko car wash, you’ve come to the right place. While this article is based on the Ryko Ultrasonic 2001 Overhead model, the user/driver experience is similar to many Ryko car wash models....