Forum Register TCG Mobile Casino Live Posting Feed Garage Arcade Members List Calendar Search Today's Posts Mark Forums Read
Go Back   The Chicago Garage > The Garage > TCG Technical > GM Tech & Discussion

User Tag List

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 01-31-2018, 02:57 PM   #1
 
GTvert90's Avatar
 
Join Date: Jun 2016
Location: Belvidere
Posts: 323
Casino cash: $7885000
0.28 per day
Default 05 Cobalt eating ICM

I picked up a Cobalt with about 127kmiles. Did some maintenance stuff to it, replaced the plugs, brakes, and so on. Anyway in probably 1k miles it started misfiring and running super rough. Swapped out the coil and ICM from a parts car and it fixed it for about a week. I had new parts ordered and that lasted about 6 weeks... ICM is bad again. I plan on checking the resistance on the circuit between the ICM and computer...I was also told to check the ground ( any idea where it's located? ) And that spark plugs with high resistance could cause the failure so I'm going to replace those as well. Any other ideas would be appreciated
GTvert90 is online now   Reply With Quote
Old 01-31-2018, 03:10 PM   #2
I haz dat teddy bear smile.
 
10sec's Avatar
 
Join Date: Jul 2008
Posts: 23,024
Casino cash: $89238925
5.74 per day
Default

Did you get an OEM ICM when you replaced the one out of the parts car?
__________________
2005 S2000
10sec is online now   Reply With Quote
Old 01-31-2018, 05:27 PM   #3
 
GTvert90's Avatar
 
Join Date: Jun 2016
Location: Belvidere
Posts: 323
Casino cash: $7885000
0.28 per day
Default

No it was Delphi. I thought about that.... I just don't want to drop money on OEM to have it crap out in a month.
GTvert90 is online now   Reply With Quote
Old 02-01-2018, 08:44 AM   #4
Dr. Pussy Slayer, MD
 
RICH17's Avatar
 
Join Date: Nov 2008
Location: The 007
Posts: 25,519
Casino cash: $110303144
6.54 per day
Default

I had two coil packs go bad in my car and they were "AC deco" units off of amazon. Third one worked. Could just be a bad line of products
RICH17 is offline   Reply With Quote
Old 02-01-2018, 04:01 PM   #5
 
GTvert90's Avatar
 
Join Date: Jun 2016
Location: Belvidere
Posts: 323
Casino cash: $7885000
0.28 per day
Default

I have a little more time let break down the time line. Bought car with 128k miles or so on it. Did some maintenance to it air filters, fuel filter, brakes, spark plugs. It went about a month or 2 ( not very many miles probably around 1K or less) and started having a random cylinder misfire and wouldn't accelerate. For a quick fix I took the ICM and coil off a Saturn I had sitting here with the same engine. it cured the misfire so I ordered a delphi coil and delphi ICM. Before I could put the new parts on the temporary coil and ICM shit out. No big deal maybe its just a coincidence as those parts had over 100k miles. Put the delphi parts on and it lasted 3 or 4 weeks.. So I'm convinced its more than just a coincidence ( I don't believe the ICM I took off the saturn was OEM but it ran fine for 10k miles or so we had the car)
GTvert90 is online now   Reply With Quote
Old 02-04-2018, 07:43 PM   #6
 
HILROD's Avatar
 
Join Date: Oct 2007
Location: ELGIN
Posts: 1,429
Casino cash: $13816450
0.33 per day
Default

What plugs did you put in it? I've seen this with non O.E. plugs mostly the quadruple million platinum plugs in GMs would keek misfiring and eating coils until acdelco plugs were put back in. Not in a Cobalt tho.
HILROD is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 09:28 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0
User Alert System provided by Advanced User Tagging v3.0.6 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
no new posts