Q: I have a loss of power and I can't really press on the gas too hard or the engine will start shaking/stalling

asked by on

When I start the car the engine idles at various rpms and will almost stall but never does and I usually wait it out for it to settle but sometimes I gas it to about 3.5k rpm and it stops changing and stays pretty consistent, any idea what it might be? When the car is rolling and I slip it into nuetral it goes to whatever rpm you want it to

My car has 160000 miles.
My car has an automatic transmission.

The engine may have a vacuum leak in the throttle intake tube between the mass air flow sensor and the throttle body. Or the mass air flow sensor may not be working correctly or is contaminated. Have the computer scanned and the codes received diagnosed to see if the mass air flow sensor needs to be replaced or if the wiring to the sensor or ECM is losing contact.

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
  1. Home
  2. Questions
  3. I have a loss of power and I can't really press on the gas too hard or the engine will start shaking/stalling

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: Q: Car cutting off

Unfortunately, the only way to be certain of the cause, is to diagnose why the traction control light is on. The traction/stability control systems piggy back on the anti-lock brake system. Using input from a number of sensors like wheel...

Q: Is my blower motor broken?

If you switch the blower "on" and there is voltage at the terminal under the dash that supplies power to the motor (you would be probing the wiring harness with a voltmeter), then the blower motor is probably dead. Some...

Q: My engine is vibrating - 1999 Ford Windstar

An engine vibration can be caused by a few different components. You will want to start with the basics and that includes fuel, spark, and air. Check the spark plugs, wires, and distributor. These will all have a huge effect...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.