Q: car feels like less power and hesitates on acceleration then drives fine and smooth --have put in sea foam for injectors.

asked by on

SXT 2 2007 Dodge Caliber --started to buck and run rough--she added injector cleaner periodically --then it got worse a few days ago. error code unknown but it said check no. 3 cylinder--it recommended 1st change plugs then possible injector. Plugs were changed,and one looked worse that others. Changing plugs didnt improve performance. . I asked her to put in SEA FOAM ... 2 pints later car runs noticeably better but still feels like less power off the line and bucks some on acceleration.

My car has 120000 miles.
My car has an automatic transmission.

Hi there. Although Sea Foam is a common product that some mechanics use as a quick way to clean up injectors, it can have severe effects on fuel system sensors and electrically controlled throttle and fuel system components as well as exhaust system components, cylinder head hardware and other internal engine components. The chemicals in Sea Foam act as an agent to break down carbon deposits that are found in gasoline and diesel fuels. However, in some cases, the product will embed itself on sensor tips and in some cases, fuel supply lines. This can create a lack of acceleration until the product eventually is washed off by fuel. The thing to remember is that gasoline is a natural solvent. So it will eventually wash away the chemicals in the Sea Foam and possibly improve the acceleration issues. If this doesn’t improve within a few weeks, she should have a professional mechanic complete a car is slow to accelerate inspection.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. car feels like less power and hesitates on acceleration then drives fine and smooth --have put in sea foam for injectors.

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

Get a quote

What others are asking

Q: Car is backfiring - 1994 Dodge Ram 1500

Hello, your description of having "white smoke with water" out the exhaust pipe strongly suggests a blown head gasket. This can cause a misfire depending on how the head gasket has failed, this will definitely cause loss of power and...

Q: Truck has a oil pressure low light

Hello. Most of the time when this light comes on with an engine noise like this it is caused by a failing oil pump. If the pump fails internally then this will occur. It can also be caused by a...

Q: Fixed sparkplugs/ ignition coils now another dashboard light help!

Hi there. The scanner doesn't actually provide a diagnosis; only codes that technicians can use for direction of the malfunction and data to support the diagnostic process. If those lights came on after the last repair, go back over all...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...