Q: Throttle doesn't open when I press down on the accelerator; vehicle starts fine and revs up smoothly; but has loss of power.

asked by on

My wife drove the vehicle to work in the morning and it worked fine; when she drove it home in the afternoon it basically limped home. The check engine & loss of power lights were on. I checked the connections and everything looked fine; but the throttle body needed cleaning. So I took it off and cleaned it with throttle body cleaner & then put it back together. When I started the engine, same thing, it starts fine, but after a few seconds idles poorly and the check engine & loss of power lights come on. When I press the accelerator the engine smooths out and can rev up to 3000 rpm's. It does this even when I disconnect the plug from the throttle body.I got a throttle body from the junk yard, cleaned it thoroughly and tried it; still same thing.When I press down on the accelerator the throttle valve isn't opening. Is this a problem with the app sensor?

My car has 128000 miles.
My car has an automatic transmission.

The throttle may not respond if any major computer sensor is failing if the computer cannot control the throttle safely. Have the codes scanned to diagnose the problem. If you need a mechanic like one from YourMechanic have one scan and diagnose the problem. It may be the pedal sensor causing the problem but would need testing.

Was this answer helpful?
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. Throttle doesn't open when I press down on the accelerator; vehicle starts fine and revs up smoothly; but has loss of power.

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 misfires or Chugs at 4-5 gear

Generally, misfires are caused by either a spark or fuel issue or in cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition modules...

Q: Seatbelt won't retract. Locked up all the way. No tension at all

From the accident the seat belts would lock due to the impact and you will need to replace both the seat belt assemblies to repair the problem. This will include the retractors and buckle assembly.

Q: Sunroof not closing in 2005 Saturn Vue

Hello! Behind the headliner and sunroof switch is the sunroof motor. Near the gears of the sunroof motor, there is a little slot where you can stick a screwdriver into a hole and manually close the sunroof. If you need...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.