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Dan, Auto Technician
Category: Chevy
Satisfied Customers: 3490
Experience:  GM Mark of Excellence/ Service Guild Participant with 13 years experience, ASE Master Certified
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2005 chevy cobalt: stall..the rpm reaches to 4 and then kicks in what

Customer Question

why does my 2005 chevy cobalt stall? the rpm reaches to 4 and then kicks in what's the problem?
Submitted: 7 years ago.
Category: Chevy
Expert:  Dan replied 7 years ago.
Does it stall or just not rev any higher?
Customer: replied 7 years ago.

i guess it just stalls when the rpm goes to 4 it kicks in to normal speed and rpm goes back down to2.But my check engine light is on

Expert:  Dan replied 7 years ago.

Does this bulletn from GM sound like what you have going on?


#PIC4252: Buck While Driving Stall SES Light Flash Door Locks Cycle CD Player Skip Clock Reset - keywords amp blown fuse ground idle inop inoperative intermittent L61 LE5 P0121 short STG surge trunk wire - (Oct 5, 2006)

Subject:Buck While Driving, Stall, SES Light Flash, Door Locks Cycle, CD Player Skip, Clock Reset

Models:2005-2007 Chevrolet Cobalt
2005-2006 Pontiac Pursuit
2007 Pontiac G5


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.


Owner complaining that the vehicle would buck while driving at times, may stall, ses light would flash, door locks cycle, cd player skip and reload, and clock reset to 12:00 It has been found that the Red/Black wire circuit #142 shorting on left rear inner quarter panel. It was not blowing the 50 amp maxi fuse right next to the battery in the trunk. This circuit feeds, hot all the time long term memory for ecm, tcm, bcm, radio, rcdlr. The wire is taped along with one other wire, the location is just to the rear of the subwoofer (must remove to access to remove trunk liner).

Note:: Your vehicle may or may NOT have a subwoofer, however the wiring is the same.


Remove damaged section of wire and repair, install insulation over edge of inner quarter panel, and install conduit..


#PIC3457A: SES Light On or Various Driveability Concerns - keywords backfire cold DTC G103 hesitate idle INT intermittent light low MIL rough stall start SES various warm - (Dec 7, 2005)

Subject:SES Light on or Various Driveability Concerns

Models:2005-2006 Chevrolet Cobalt
2005-2006 Pontiac Pursuit


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.


A customer might comment about a SES light on or Various driveability concerns intermittently.


The first thing to check is Ground G103 for it being loose, If it is tight then proceed with current diagnostics.

Note: This ground is located behind the left front head light assembly on the top of the frame rail.

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