Chevy Cobalt Forum banner

Pcm/bcm

Jump to Latest Follow

1 - 3 of 3 Posts
Lucy Rahmlow

·
Registered
Joined
·
3 Posts
Discussion Starter • #1 •
i have a 2005 cobalt will crank but will not start.. tech 2 code u2100 failure.. no other codes.. how do I get the tech 2 to link the pcm to bcm again? reprogram/communicate.. or should I just get a junk pair with my pcm number?
 
1 - 3 of 3 Posts
Recommended Reading
Read More

  1. 2007 Chevy Cobalt starter problem

    Problems and Service
    I have a 2007 cobalt and I'm not sure exactly what is wrong with it. Starts up just fine first try and starts up right after it gets turned off, but if it is turned off and sits for a couple minutes the starter spins and won't fully engage. I've replaced the started 2 different times and no luck...

  2. seat adjustment

    Problems and Service
    i have a 2008 cobalt LT and the adjustment bar on the bottom of the passengers seat fell out of place a long time ago (my friend who previously owned it never knew how to fix it so they just left it) but now the adjustment bar on the bottom of the drivers seat is also loose.. any idea how to fix it?

  3. 2006 project car - piston rod broken -Engine swap

    Problems and Service
    I just purchased a project 2006 cobalt LS with a 2.2 auto for my son and I to work on and we have determined that a piston rod is broken so I want to swap the motor with one from a wrecker. But I was wondering if there is a list somewhere of the other cars (Including what years work) that would...

  5. 09 cobalt help

    Problems and Service
    I have 09 cobalt ls, When clearing the code and here and there on a cold start will stall out or bog down shut off but sometimes will catch itself. Had a cracked flex pipe, fixed it then realized my downstream o2 sensor wires were ripped, I replaced the o2 sensor and it still does it, it also...

  6. 2006 Cobalt LT ECM/TCM issues

    Problems and Service
    Hello! I've been dealing with this issues for months now and it's extremely irritating. Any help is greatly appreciated!! At low speeds my car acts up terribly: Speedometer jumping Loss of power during acceleration (Release gas pedal and push back to gain power back) Transmission shifting...
Read More
About this Discussion
2 Replies
1 Participant
Last post:
Lucy Rahmlow
Chevy Cobalt Forum
A forum community dedicated to Chevy Cobalt owners and enthusiasts. Come join the discussion about performance, modifications, parts, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
Off Topic Chat Interior & Exterior Styling Chevy Cobalt Owners Lounge Engine Mods Problems and Service
Popular Communities
Community avatar for Home Entertainment
Home Entertainment
1,280,000+ members
Join
Community avatar for Mountain Bike Reviews
Mountain Bike Reviews
450,000+ members
Join
Top