Q: SUV experienced low acceleration and loss of power

asked by on July 27, 2016

I was driving around 30 mph and without warning my SUV began to lose acceleration, which led to a loss of power. I took it to my local mechanic but he wasn’t able to diagnose the problem. The same low acceleration and loss of power has happened four or five more times. Before I find another auto repair shop, could you give me ideas of what might be causing this problem? Thanks.

Catalytic Converter Replacement $279.51 - $3103.51 Get a Quote
Throttle Controller Replacement $226.78 - $1710.92 Get a Quote
Loss of power Inspection $79.99 - $89.99 Get a Quote

Hello. There are a few possible problems that might explain the problems you are experiencing with your 2009 Saturn Outlook. There could be a problem with the catalytic converter in that it may be clogged. The catalytic converter is like a filter for the exhaust and when/if it is clogged, the exhaust can’t pass through it which may result in a loss of power and then an engine shut off.

It is also possible that there is a problem with the electronically controlled throttle body. The throttle body is what allows the proper air/fuel mixture when the gas pedal is pressed. If the throttle body isn’t operating properly, the car won’t accelerate and you may experience a loss of power and an engine shut off. Have a certified technician, like one from YourMechanic, come and complete an inspection to pinpoint the cause of your car’s loss of power.

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

How much is it to put a car door on?

Installing a card door can vary in price quite drastically depending on the condition of the used door you decide to purchase and the condition of the damaged door currently on the vehicle in addition to any damage that has...

I was driving down the road just fine all of a sudden my battery light came on for a second then all of my lights came on and then

Hello. Obviously, there's an electrical issue. To rule out the simple and obvious possibilities have the battery load tested at a major, reputable battery store (this is a common test; they have the tester) to be sure the battery doesn't...

car pulls to right after being hit hard on left tire and slight dent on wheel well.

There was probably at least some damage to your tie rods. These are the connections between the steering rack and the wheel. If one is bent or fatigued, it could even be dangerous to drive the car. There are some...

After repairs, Check Engine Light stays on

Hello. The flashing Check Engine Light is an indicator that there is a misfire in the engine that will damage the catalytic converter. This means that you should not drive the vehicle any more than absolutely necessary or the catalytic...

Thermostat

The cooling system would need to be completely checked out to see if the cooling fan circuit is working correct. If the fans are not coming on it would allow the engine to overheat. The thermostat would cause the engine...

When I speed up my service engine light flashes.

Hi there. If you engine is having a P0300 code for a random misfire, check the camshaft position sensor for any moisture and if the harness has any broken wires. If the sensor looks to be good, then remove the...

There is green fluid that came pouring out from the bottom of my car up by the driver side tire. I have 2009 nissan Maxima.

Green fluid in most cases is going to be coolant. If the car is running you will usually notice some sharp smelling steam as well. Best to stop driving the car until you can locate and repair the leak. The...

Misfiring cylinder

Hi there. There are a couple of different reasons why a single cylinder would be misfiring. A common issue would be a lack of continuity throughout your spark plug coil, wire, and plug. Another problem you may be having is...

Car pulls to the right after tire rotation and balancing

Hello. Thanks for writing in about your Infiniti EX35. A pull to the right is not normal. If the alignment is in specification, then the frame needs to be checked as it may not be straight. If it is, then...

Related articles

A Buyer’s Guide to the 2009 Mazda Tribute Hybrid
2009 2009 marked the end of the very short life of the Mazda Tribute Hybrid. All told, the automaker produced fewer than 700 models, and it was ultimately retired well before the Tribute itself ceased production in 2011. For the...
How Long Does an Oil Cooler Last?
The The heat that the engine produces can produce a lot of damage in the right situation. Making sure that all of the systems on a car that reduce the heat of the engine are working properly is important. The...
Symptoms of a Bad or Failing Automatic Timing Advance Unit
If your car experiences engine knock, sluggish performance, or excessive black smoke, you may need to replace your automatic timing advance unit.