ECM communication problem

By Jacqui
December 29, 2019 in Traverse, Acadia, Blazer & Enclave (Pre 2024)

Recommended Posts

Jacqui

Posted December 29, 2019

Good morning, I have a 2016 Terrain for 2 months now. Carmax replaced the battery and since then I’ve been having this problem where it’ll lose power and get stuck in gear. Once I come to a complete stop and turn the turn completely off, I’m unable to start it back up for an hour. Took it to the deal for them to tell me it’s nothing wrong with the truck but I continue to have the same problem. I just recently went to auto zone and was told that the ECM lost communication. How do I get this fixed and what’s all that needs to be done.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Forum Statistics

250.4k
Total Topics

2.7m
Total Posts
Member Statistics

342,779
Total Members

8,960
Most Online

Newest Member
B. Edward
Joined 1 hour ago
Who's Online 7 Members, 0 Anonymous, 2,072 Guests (See full list)

Latest Articles
Posts
- Wow I'm in a pickle. (Broke down truck) and a story.
  
  By Atlas · Posted 58 minutes ago
  
  I've never done an intake gasket before. Of course, advice on how to best clean and prep is ALL OVER the place. Scotch Brite. No Scotch Brite. Roloc wheel, NO, not that, plastic scraper only and solvents, NO, use a razor blade and solvents, acetone, NO, use brake cleaner, NO not brake cleaner, use ___ . I tried a more gentle method last night with a razor blade - actually, with a new exacto blade because it's wider than a razor blade and just as sharp. And using plastic (blue) scotch-brite (basically a kitchen sponge with a non-scratch scrubber on the back) and some brake cleaner. Sadly, there is some pitting/corrosion on the intake where it mates with the rear coolant ports which aren't used. They're blocked off there so coolant pools and corrosives crystallize there and cling to the intake material. I think a new gasket will seal. The Edelbrock install guide says use Gaskachinch (which I interpret as a product like Permatex High Tack dressing/sealer) to hold the gasket in place and encourage good sealing. SO I think I'll do that. Any other tips/tricks? I'll suck out the valley and ports real good and add some more protective layering while cleaning to catch debris. This is definitely a backyard job, good enough. I don't have enough interest or zeal to go have stuff hot-dipped, machined, etc. It was sealed before, so it should seal again. Right?!
- Gas Prices
  
  By Grumpy Bear · Posted 1 hour ago
  
  I have one station in my area back to Prewar E-85 pricing. $2.199. Everyone one else and every other grade still 86 cents to a buck higher. This chart is Shell V Power Nitro Plus 93 at my cheapest source and with my 4% COSTCO discount card. Dating back to 9/11/2024
- Wow I'm in a pickle. (Broke down truck) and a story.
  
  By Grumpy Bear · Posted 1 hour ago
  
  Now I know which ones not to be interested in. Thanks! You've got this. 😉
- Gas Prices
  
  By OnTheReel · Posted 1 hour ago
  
  The good old days are coming back boys! Premium still $4.66 and Regular at $3.45.
- Winter Returned
  
  By Grumpy Bear · Posted 1 hour ago
  
  Local Weather tells us that we tied a record in June for hottest single day on record since the 1930 "Dust Bowl" period. We also set a record for number of consecutive days of 100F or more F heat index for June. July is going to start with a three day string of 100+ heat index days. We may get some relief on Saturday but even that day is a Level 1 risk. I can't imagine what it is like for those east of us that are 10 degrees hotter. Whew! Saw some guys in a grocery store parking lot yesterday hand patching pot holes in mid afternoon covered head to toe in dark heavy clothing and hats. Nothing but eyeballs to be seen. Working like madmen. Not a water bottle in sight. That's nuts.
GM-Trucks.com Clubs
- Black Truck Club
  
  Open Club · 612 members
- White Truck Club
  
  Open Club · 380 members
- Canadian Owners Club
  
  Open Club · 282 members
- Red Truck Club
  
  Open Club · 156 members
- diesel 3.0
  
  Open Club · 279 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 212 members
- 2015 Custom Sport Club
  
  Open Club · 5 members
- GM Snow Plowing Club HD
  
  Closed Club · 14 members
Popular Contributors
- Week
- Month
- Year
- All Time
1. 1
  
  Atlas
  16
2. 2
  
  KARNUT
  14
3. 3
  
  Grumpy Bear
  12
4. 4
  
  newdude
  8
5. 5
  
  Jsdirt
  5
Show More