Question about 2005 Chevrolet Malibu

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Car has no power when driving

All of a sudden my car display said the engine power is reduce. and it will barely move even with the the pedal to the floor ..... i have a 2005 chevy malibu and it is a 4 cylinder.....

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  • kennsing2 Mar 12, 2009

    yes my check engine light is on also. if it is either one of this problems how much would we be looking at to repair it


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Its a Mapp sensor super easy fix only like a $30 part

Posted on Jan 13, 2013

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Sounds like clogged catalytic converters to me. Do you have a check engine light on? 
Could also be an Oxygen sensor

Posted on Mar 12, 2009

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Posted on Jan 02, 2017

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My 2006 Buick lacrosse reduce power light came on today--what does that mean

Reduced Engine Power
Refer to Throttle Actuator Control (TAC) System Description in Engine Controls - 3.6L or Throttle Actuator Control (TAC) System Description in Engine Controls - 3.8L
TAC System Default Actions/Reduce Power Modes
There are 2 reduce power modes that the engine control module (ECM) can default to if an error is detected in the throttle actuator control (TAC) system. If an accelerator pedal position (APP) sensor 1 or APP sensor 2 circuit fault, throttle position (TP) sensor 2 circuit fault, or if a TP sensor 1 circuit fault is detected with some APP angle, the ECM goes into one of the 2 reduce power modes. In this mode, the engine torque is limited so that the vehicle cannot reach speeds of more than 100 km/h (60 mph). The ECM remains in this reduce power mode during the entire ignition cycle even if the fault is corrected.
If there is a condition with the throttle actuator control circuits, throttle actuator command vs actual position fault, return spring check fault, or a TP sensor 1 circuit fault, the ECM goes into the other reduce engine power mode. In this mode, the engine speed is limited to 2,500 RPM and the 3-6 fuel injectors are randomly turned OFF. At this time the Reduced Power indicator is commanded ON. The ECM remains in the reduce power mode during the entire ignition cycle even if the fault is corrected. Observe, if a TP sensor 1 or throttle actuator control circuit fault is present at the time the vehicle is at idle, with no accelerator pedal angle, the engine may stall.

Jun 21, 2015 | Cars & Trucks

4 Answers

I have an 06 cobalt and recently my car started to suddenly lose power while driving. It says reduce engine power when this happens. If I turn the car off for a minute it'll go away.

This has nothing to do with the Catalytic converter ! Plugged catalytic converters don't go away after shutting off the vehicle !
This reduced engine power has to do with the
Throttle Actuator Control (TAC) System
Reduced Engine Power Mode When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
Acceleration limiting--The ECM will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.

Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.

Throttle default mode--The ECM will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.

Forced idle mode--The ECM will perform the following actions:

Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned off.

Ignore the accelerator pedal input.

Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.

Mar 29, 2015 | 2006 Chevrolet Cobalt

1 Answer

HOW to get 2006 HHR up to normal engine power? 2006 HHR engine loses power abruptly or barely keep going. "Reduced Engine Power" on display. Chev dealer replaced throttle body; problem persists.

I agree that all this new technology could have been used to make life easier instead of which it has been deliberately and calculatingly misused to make life harder and more expensive.

I suggest obtaining and using an obd recorder. The dealer might have one to loan you.
Plugged into the obd port it continuously records engine management conditions and data to be reviewed later on a standard laptop or desktop computer. It might need an expert to understand what is happening to cause the fault but sometimes that is the best or only way to find an intermittent fault.

There is one condition that can affect some engines without being recorded as a fault and that is a turbo over-boost condition caused by the incorrect operation of the turbo wastegate. This is generally a control or sensor problem and instantly kills the engine power when it happens. Switching off the engine and restarting allows normal driving again until inadvertently too much acceleration is used again and the cycle repeats.

I hope this helps.

Feb 20, 2015 | 2006 Chevrolet HHR

1 Answer

I have a Chevrolet Silverado 2007 new body style saying that i have reduce engine power code p2138

The automotive trouble code P2138 throttle/pedal position sensor/switch D/E voltage correlation refers to a problem related to the throttle's ability to open and close properly. Replace (suggest) the sensor (black object) on the throttle body.

Oct 08, 2014 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

Engine power reduced displayed

sounds like the camshaft sensor or the crankshaft sensor, either way I think your car is being recalled for a faulty ignition switch which could turn off by itself.

Apr 03, 2014 | 2006 Chevrolet Cobalt LS

1 Answer

No speed when gas pedal is to floor tranny light came on

With the oil light coming on and the brake pedal being hard to press I would say that the engine stopped hence no vacuum -no power assist from the booster.- hard brake pedal. The lock uo feeling may come from the engine seizing up while you were still in gear

Feb 02, 2013 | 2003 Jeep Liberty

1 Answer

1986 K5 Blazer 4x4 wont move when put in drive or reverse even in 4x4

Hi Don, have you checked the gear box oil level? Regards John

Sep 01, 2012 | Cars & Trucks

2 Answers

Low engine power displays and in fact the vehicle barely moves

Could be the fuel pump in the Gas tank. Mine crapped out and caused the car to have reduced power for awhile before it quit all together.

Apr 23, 2009 | 2003 Chevrolet Suburban 1500

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