2005 Chevrolet Cobalt - Answered Questions & Fixed issues

https://www.fixya.com/cars/t10273871-looking_camshaft_position_sensor ..

A sensor is going bad in your shifter assembly. When you shift the car out of Park the doors automatically lock. The sensor known problem

Since both of these systems use the same wheel speed sensors, I would start there. The only way to not just throw parts at it by trying to guess what sensor it is would be to have a code scanner that reads ABS codes and it'll tell you exactly what sensor has failed. It would be worth it to pay a shop to scan the ABS codes so you don't have to replace all of them to make sure you get the right one.

pull plugs look for wetness - and possible white smoke from tail pipe ----possible bad head gasket

it is most likely going off because the sensor that sets the alarm off when someone bangs it or breaks the window is set to sensitive. Locate the adjustment under the hood near the firewall usually on the alarm module and turn it down.

Get the trouble codes read. That's ALWAYS your starting point ABS light on TRAC off Stabilitrac Ricks Free Auto Repair Advice

Put the old trans module back in and check the large power feed wire at the fuse box on the center consul on the passenger side of the shifter consul,this is a known problem for having a poor electrical connector and will cause this problem. Wiggle this wire and you most likely will hear a relay click and the power steering message go out.

Do you know anything about automotive electronic's ? BCM - body control modules ? DTC'S - diagnostic trouble codes ? Turn Signal Lamps The body control module (BCM) is responsible for controlling the turn signals and hazard lamps. When the turn signal switch is placed in either the left turn or right turn position, the BCM receives a signal from the turn signal switch. The BCM then sends an on-off voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator. When the hazard switch is pressed, the BCM receives a signal from the hazard switch. The BCM then will send an on-off voltage signal to all the turn signal lamps. All the turn signal lamps will flash including both IPC turn signal indicators. Hooking up a professional type scan tool an checking for DTC'S in the BCM would be the first step in the diagnostic procedure .

Need help programming a key fob for a 2005 Chevrolet Cobalt

Its hard to fit your hand in the small space so best to remove the 2 bolts on top 10mm that are holding the headlight in place. The from the side, pull/pop the headlight assembly forward and out from behind the front grill area. Once its out, you can easily turn the retaining collar and remove the bulb. Be sure not to touch the glass of the new bulb or the oils from your fingers will create a hotspot and shorten the bulb life. Replace in reverse order.

Fuel problems either the fuel pump can not keep up to the demand or a inline fuel filter is starving your engine because it is partially blocked.

https://www.autozone.com/repairguides/Cobalt-2006-2008-G5-2007/Specifications/Torque-Specifications/_/P-0996b43f80cb1692

Yes. Be aware that a bad cam sensor can cause this code if the cam and crank sensor are both borderline bad, you can check with a DVOM or a scanner that reads data pids. I hope this helps. Take care

• DTC U2105 Lost Communications With Engine Control System Modules connected to the GMLAN serial data circuits monitor for serial data communications, during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have programmed information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are also supervised and some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. When a message that indicates the availability of the transmitter module is not received, the receiver module sets a DTC 21xx where xx is equal to the 2-digit identification number of the transmitter module. The DTC descriptors listed below provide a method for determining which module is not communicating. A module with a GMLAN serial data circuit malfunction or which loses power during the current ignition cycle will have a Loss of Communication DTC set by other modules that depend on information from that failed module. The modules that can communicate will set a DTC indicating the module that cannot communicate. Your best bet , take it to a qualified repair shop .

Is this the factory radio?

in front of the gear lever, under lighter

Pull the handle to lower the seat, and open the trunk from the inside with the emergency release handle.

The check engine light being on now is a different problem , Have DTC'S - diagnostic trouble codes checked ,will have something to do with electronic throttle control . That is what reduced engine power is about . It's in a reduced power mode. 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. Do you know what electronic throttle control is ? -------------------------------------------------------------------------------- Throttle Actuator Control (TAC) System Description The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions: • Accelerator pedal position sensing • Throttle positioning to meet driver and engine demands • Throttle position sensing • Internal diagnostics • Cruise control functions • Manage TAC electrical power consumption The TAC system includes the following components: • The accelerator pedal position (APP) sensors • The throttle body assembly • The engine control module (ECM) Your best bet , take it to a qualified repair shop .

General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2005-2010 model year Chevrolet Cobalt vehicles; 2005 model year Pontiac Pursuit; 2005-2006 model year Pontiac G4; 2006 model year Pontiac G5 Pursuit; and 2007-2010 model year Pontiac G5 vehicles equipped with electric power steering. Some of these vehicles have a condition in which a sudden loss of power steering assist could occur at any time while driving the vehicle. If the power steering assist is lost, a chime will sound and a "Power Steering" message will be displayed in the Driver Information Center to inform the driver of the condition. Steering control will be maintained, as the vehicle defaults to a manual steering mode. If power steering assist is lost, it may require greater driver effort at low vehicle speeds, for example, below 15 mph (25 km/h). Unless a driver compensates for this additional effort, it may increase the risk of a crash.

It sounds like failing hydraulic pistons in the steering rack/steering box to me!