Chevy Equinox - PCM Root of Problems

Posted in the Chevrolet Equinox Forum

Comments

Showing posts 1 - 20 of127
< prev page
|
Go to last page| Jump to page:
Neb

United States

|
Report Abuse
|
Judge it!
|
#1
May 17, 2008
 

Judged:

2

1

I just posted this in a separate post, but I thought it would be beneficial for this information to be posted in a new topic for discussion.

Fact: A small percentage of Chevy Equinox vehicles manufactured in 2005 shipped with a faulty PCM. The PCM is the "Powertrain Control Module" which controls virtually everything on your car. Think of it like Windows on your PC at home. If Windows fails, the PC can't do what it is designed to do. Same with the PCM in your Equinox. If your PCM is faulty, you will get random problems at random times - most of the time this cannot be diagnosed at the dealer because the PCM itself cannot tell them it's failing, other than complete failure.

Problems:
The faulty PCM, which is covered under a NHTSA Recall for replacement, can cause the following problems at random times:

-Failure to start
-Poor fuel economy
-Radio/CD failure
-Fuel delivery issues (engine shut-off)
-EGR issues
-misc other issues

Replacing the PCM and having your new one programmed by a dealership will solve most of your problems.

Cost to fix the PCM:
If your specific Equinox is not covered under the Recall (which some are not) you can still do this on your own at your cost. A replacement PCM should cost no more than $400.00. The PCM takes under 10 minutes to physically install, and about 15-30 to program with a Tech II scanner costing you 1 hour of labor. Suggest this route to your dealer - and if they are honest - they will understand your concerns and go this route. Find a reputable shop/dealer you trust.

Minor Problems not related to the PCM:

-Thumping sounds from rear: Rear sway bar noise. You can replace it but it's not necessary.

-Odd smells in interior: This is most likely caused by the AWD unit (physically damaged from a road obstruction, or leaking) or possibly a leaky EGR valve. Get these checked out and hire a professional Carpet Cleaning service to clean your interior after the problem has been fixed.

Summary:

In all reality, the Chevrolet Equinox is a great vehicle to look into if you are looking for a Crossover SUV. It offers a mechanically solid drivetrain that has years of dependability behind it (3400 V6 is from the 60* V6 family of engines dating back to 1980, transmission is from Aisin in Japan and also used in the Saab 9-3.) The Equinox can also tow 3500 lbs, has attractive styling, can carry tons of cargo and materials, and has more rear-seat legroom than most BMW/Mercedes luxury sedans. Granted, it's got it's fair share of problems, but don't let something like a faulty PCM for one model year (2005) scare you away from this great deal of a vehicle.

For those of you who are mechanically inclined, this powertrain is extremely easy to work on as well, similar to working with a 3800 V6 powertrain.
Chance

United States

|
Report Abuse
|
Judge it!
|
#2
Jun 24, 2008
 

Judged:

1

1

1

PCM fixed, that still doesn't help that water, yes water will stain my seats, the trunk leaks, the tires wear prematurely, and the engine sound like it's going to explode at any moment. Bottom line, I've had 275K/Mile Toyotas that run better than this(2005 ls AWD) when it was brand new.

Since I got this vehicle resale has dropped out due to all the problems. Now my only hope is the engine lasts long enough to pay it off, so I will have money to get it replaced(hopefully not with the same crappy 3400).
Neb

United States

|
Report Abuse
|
Judge it!
|
#3
Sep 1, 2008
 

Judged:

1

1

Chance wrote:
PCM fixed, that still doesn't help that water, yes water will stain my seats, the trunk leaks, the tires wear prematurely, and the engine sound like it's going to explode at any moment. Bottom line, I've had 275K/Mile Toyotas that run better than this(2005 ls AWD) when it was brand new.
Since I got this vehicle resale has dropped out due to all the problems. Now my only hope is the engine lasts long enough to pay it off, so I will have money to get it replaced(hopefully not with the same crappy 3400).
You probably got a lemon. Most of the people who come to the internet to post their problems are the very few who get lemons. The other 99% are happy and have no reason to post.

By the way, the 3400 V6 is not a "crappy" engine. It is time-tested and is warranted for 100,000 miles. This is from the same 60* V6 family that had motors frequently surpassing 250k miles with no major work.

As far as "the engine sounding like it will blow up" you are wrong. This is an OHV Pushrod engine, just like the engine in the Corvettes. That is how it sounds, the distinct roar of an OHV motor. Pushrod engines return better fuel economy and higher torque numbers than comparable OHC/DOHC engines. You can't complain about the acceleration either, as 0-60 in 8 seconds is pretty damned good for a SUV at this price range.

Get your problems fixed and get a different vehicle. Getting angry and losing focus won't solve your problems.
Honda Lover

Pittsburgh, PA

|
Report Abuse
|
Judge it!
|
#4
Sep 4, 2008
 
I cannot find anything about a recall for the PCM on the NHTSA website. All of a sudden, my car sounds like a truck and two dealerships say it is not the muffler system, it is the EGR pipe. One says I can replace just the pipe, the other says it is not safe to just replace the pipe, I need to replace the whole "kit". Do not know which one to believe. I get terrible smell of fumes in the car but first dealership says they could not smell anything and everything was fine. I have also had radio problems, which I did not have when I bought it, and engine starting problems occassionally.
Neb wrote:
I just posted this in a separate post, but I thought it would be beneficial for this information to be posted in a new topic for discussion.
Fact: A small percentage of Chevy Equinox vehicles manufactured in 2005 shipped with a faulty PCM. The PCM is the "Powertrain Control Module" which controls virtually everything on your car. Think of it like Windows on your PC at home. If Windows fails, the PC can't do what it is designed to do. Same with the PCM in your Equinox. If your PCM is faulty, you will get random problems at random times - most of the time this cannot be diagnosed at the dealer because the PCM itself cannot tell them it's failing, other than complete failure.
Problems:
The faulty PCM, which is covered under a NHTSA Recall for replacement, can cause the following problems at random times:
-Failure to start
-Poor fuel economy
-Radio/CD failure
-Fuel delivery issues (engine shut-off)
-EGR issues
-misc other issues
Replacing the PCM and having your new one programmed by a dealership will solve most of your problems.
Cost to fix the PCM:
If your specific Equinox is not covered under the Recall (which some are not) you can still do this on your own at your cost. A replacement PCM should cost no more than $400.00. The PCM takes under 10 minutes to physically install, and about 15-30 to program with a Tech II scanner costing you 1 hour of labor. Suggest this route to your dealer - and if they are honest - they will understand your concerns and go this route. Find a reputable shop/dealer you trust.
Minor Problems not related to the PCM:
-Thumping sounds from rear: Rear sway bar noise. You can replace it but it's not necessary.
-Odd smells in interior: This is most likely caused by the AWD unit (physically damaged from a road obstruction, or leaking) or possibly a leaky EGR valve. Get these checked out and hire a professional Carpet Cleaning service to clean your interior after the problem has been fixed.
Summary:
In all reality, the Chevrolet Equinox is a great vehicle to look into if you are looking for a Crossover SUV. It offers a mechanically solid drivetrain that has years of dependability behind it (3400 V6 is from the 60* V6 family of engines dating back to 1980, transmission is from Aisin in Japan and also used in the Saab 9-3.) The Equinox can also tow 3500 lbs, has attractive styling, can carry tons of cargo and materials, and has more rear-seat legroom than most BMW/Mercedes luxury sedans. Granted, it's got it's fair share of problems, but don't let something like a faulty PCM for one model year (2005) scare you away from this great deal of a vehicle.
For those of you who are mechanically inclined, this powertrain is extremely easy to work on as well, similar to working with a 3800 V6 powertrain.
Neb

United States

|
Report Abuse
|
Judge it!
|
#5
Sep 6, 2008
 
The NHTSA Recall only applies to certain 2005 models - not all vehicles are in the recall. Since this is a product emission issue, it has to be fixed to comply with federal law.

Here is the information from the NHTSA website:
----------
"# TSB #05539 -- PRODUCT EMISSION RECALL TO REPLACE THE POWERTRAIN/ENGINE CONTROL MODULE (PCM/ECM). THE POWERTRAIN/ENGINE CONTROL MODULE (PCM/ECM) MAY HAVE BEEN MANUFACTURED WITH DAMAGED INTERNAL IC CHIPS, WHICH MAY AFFECT THE FUEL PUMP CONTROL AND EGR OUT (NHTSA ID #10017551, APRIL 01 2005)"
----------
JGR

Temple, TX

|
Report Abuse
|
Judge it!
|
#6
Oct 14, 2008
 
My 2005 Equinox just died. The mechanic is saying that it is the primary fuel pump. Supposedly there are two, one in front of the tank and the other in the back or bottom.$1,260 to fix one,$1,700 to replace both.
Could this be the PCM acting up and if so couldn't they deduct that when they tested it?
HELP!
Jeannette

AOL

|
Report Abuse
|
Judge it!
|
#7
Nov 13, 2008
 
So Neb what site did you get this information and do you know if it's before April 1st 2005 or after? I bought my 2005 Equinox, 13 June 2005.
Neb wrote:
The NHTSA Recall only applies to certain 2005 models - not all vehicles are in the recall. Since this is a product emission issue, it has to be fixed to comply with federal law.
Here is the information from the NHTSA website:
----------
"# TSB #05539 -- PRODUCT EMISSION RECALL TO REPLACE THE POWERTRAIN/ENGINE CONTROL MODULE (PCM/ECM). THE POWERTRAIN/ENGINE CONTROL MODULE (PCM/ECM) MAY HAVE BEEN MANUFACTURED WITH DAMAGED INTERNAL IC CHIPS, WHICH MAY AFFECT THE FUEL PUMP CONTROL AND EGR OUT (NHTSA ID #10017551, APRIL 01 2005)"
----------
jdb

United States

|
Report Abuse
|
Judge it!
|
#8
Dec 22, 2008
 
JGR wrote:
My 2005 Equinox just died. The mechanic is saying that it is the primary fuel pump. Supposedly there are two, one in front of the tank and the other in the back or bottom.$1,260 to fix one,$1,700 to replace both.
Could this be the PCM acting up and if so couldn't they deduct that when they tested it?
HELP!
Did you ever get this issue fixed? Was it the PCM? I just had the same issue and recieved a similiar quote from a repair shop. However, they told me they can't be sure if its a fuel pump issue until they get it out and want $500 just to diagnosis it.
Gina

United States

|
Report Abuse
|
Judge it!
|
#9
Jan 7, 2009
 
Our 2007 Equinox runs fine, but since it was badly wrecked and repaired the trunk leaks. I see others complain that their trunks leaked from the git-go. Has anyone found any specific problem that could be causing the leak? I plan to caulk all around the trunk seal and some gaps between body parts and see what happens.
beecee

Delphos, OH

|
Report Abuse
|
Judge it!
|
#10
May 10, 2009
 
FYI: the Equinox is equipped with a 3500 V6 and is made in China. It is not a derivative of the 3400 which traces its roots back to the venerable 2.8 liter V6.
Carter

Hartwell, GA

|
Report Abuse
|
Judge it!
|
#11
May 14, 2009
 
where is the powertrain control module on a 2005 chevy equinox and what does it look like email me at ccarter83@comcast.net
bigerix

Mandeville, LA

|
Report Abuse
|
Judge it!
|
#12
Aug 18, 2009
 
JGR wrote:
My 2005 Equinox just died. The mechanic is saying that it is the primary fuel pump. Supposedly there are two, one in front of the tank and the other in the back or bottom.$1,260 to fix one,$1,700 to replace both.
Could this be the PCM acting up and if so couldn't they deduct that when they tested it?
HELP!
I have the exact same problem can anyone tell me how they got it resolved??
Neb

Des Moines, IA

|
Report Abuse
|
Judge it!
|
#13
Oct 2, 2009
 
beecee wrote:
FYI: the Equinox is equipped with a 3500 V6 and is made in China. It is not a derivative of the 3400 which traces its roots back to the venerable 2.8 liter V6.
Your post is false. The Equinox IS equipped with the 3400 3.4L V6 60 degree engine that is part of the engine family going back to the 2.8 V6. Pop the hood of any Equinox and see, or just look at the information on KBB.com (Kelley Blue Book) or cars.com for 2005-2009 models.

The engine is manufactured in China. The transmission is manufactured in Japan, and the vehicle is assembled in Canada. The engine is made from the same castings as the previous 3400 V6 used in GM cars. The only difference is this engine code is LNJ which has electric power steering and electronic throttle control. The motor is also covered by a 100,000 mile warranty.
StL

Saint Peters, MO

|
Report Abuse
|
Judge it!
|
#14
Nov 17, 2009
 
Gina wrote:
Our 2007 Equinox runs fine, but since it was badly wrecked and repaired the trunk leaks. I see others complain that their trunks leaked from the git-go. Has anyone found any specific problem that could be causing the leak? I plan to caulk all around the trunk seal and some gaps between body parts and see what happens.
Gina, many of these vehicles leak. There is a multi-page memo from Chevy to the dealers on how to fix this. Take it to the dealer where you purchased it and it should be covered by Chevy. Good luck!
HAM

United States

|
Report Abuse
|
Judge it!
|
#15
Nov 20, 2009
 
"# TSB #05539 -- PRODUCT EMISSION RECALL TO REPLACE THE POWERTRAIN/ENGINE CONTROL MODULE (PCM/ECM). THE POWERTRAIN/ENGINE CONTROL MODULE (PCM/ECM) MAY HAVE BEEN MANUFACTURED WITH DAMAGED INTERNAL IC CHIPS, WHICH MAY AFFECT THE FUEL PUMP CONTROL AND EGR OUT (NHTSA ID #10017551, APRIL 01 2005)"

My 2005 Equinox has alwasy had some of these issues listed, but I know nothing about cars and I don't understand what this means. SO, do you know which specific models qualify for this recall? Also, does it cost money to take your car to the dealership and have them look to see if your car qualifies??
alvinzuproc

Lakewood, CA

|
Report Abuse
|
Judge it!
|
#16
Dec 3, 2009
 
Neb,

I have a 2005 Equinox LS, had all problems listed, and an ac blower issue as well. do you think that if i replace the PCM it will also illiminate the problem with the Blower? to the best of my knowledge i am pretty sure that the pcm is creating all the electrical problems to this vehicle..'

Do you have the Part # for the "corrected" pcm?

Thank you!
ChevyPieceOfCrap

United States

|
Report Abuse
|
Judge it!
|
#17
Dec 21, 2009
 

Judged:

1

I bought a 2006 Chevy Equinox brand new in 2006 and my wife has been complaining about the car starting. Ignoring her as a typical guy does. The car failed to start on me recently and searched Google and realized all the postings with the same problem. Called the dealer, the service guy was stupid, did not feel like doing his job, no wonder why all the jobs are being sent over seas. Called Chevy and they said that they could not give me information and that I have to pay out of pocket to have the car diagonsed when I told them that it's all over the internet and that this is their problem. The guy was as worthless as 2 tits on a bull. Last time I'm buying an American piece of shit. And people don't know why jobs are going bye, bye.
Michael

Wheeling, IL

|
Report Abuse
|
Judge it!
|
#18
Dec 21, 2009
 

Judged:

4

Neb wrote:
<quoted text>
You probably got a lemon. Most of the people who come to the internet to post their problems are the very few who get lemons. The other 99% are happy and have no reason to post.
Care to back that number up? I've hated my Equinox since almost Day 1 and only now have gotten to the point of posting. Failure to come to a forum and vent in no way implies customer satisfaction or happiness.
This car is poorly designed and built. Crimony, I've got blind spots on the front of this vehicle because the frame is so wide where it attaches to the windshield. Whoever designed this thing for Chevy should be sentenced to drive it for the rest of their lives.
It takes me over an hour to simply change the headlamp on the Equinox when it goes out. Compare this to my last car, a Volvo, which took about three minutes. It's almost as if the car was designed to make it so inconvenient as to force you to go to the dealer for the most basic of repairs.
Then there are the major mechanical issues. The problem isn't the odd person getting a 'lemon', the problem is that a sizable number of people are reporting the same problems over and over and over again.
The Equinox is quite simply an awful vehicle.
BNJNMNA

Mercer, PA

|
Report Abuse
|
Judge it!
|
#19
Dec 21, 2009
 
My car is an 06 and last winter I could plow thru over a foot of snow,this year we've had our first snow of about 3 inches and I can't even get out of our driveway! My AWD is not working for some reason...does anyone have any idea why or ballpark a price to get something like this repaired?
ur wrong

Bedford, IN

|
Report Abuse
|
Judge it!
|
#20
Jan 6, 2010
 
actually this block was made in china and there are many people experiencing problems with it. rear main seal leaks. the head gasket blowing with under 80k. pcm issues as discussed. the platform is a very good. but for the equinox in 05 chevy went cheap and failed
Neb wrote:
<quoted text>
You probably got a lemon. Most of the people who come to the internet to post their problems are the very few who get lemons. The other 99% are happy and have no reason to post.
By the way, the 3400 V6 is not a "crappy" engine. It is time-tested and is warranted for 100,000 miles. This is from the same 60* V6 family that had motors frequently surpassing 250k miles with no major work.
As far as "the engine sounding like it will blow up" you are wrong. This is an OHV Pushrod engine, just like the engine in the Corvettes. That is how it sounds, the distinct roar of an OHV motor. Pushrod engines return better fuel economy and higher torque numbers than comparable OHC/DOHC engines. You can't complain about the acceleration either, as 0-60 in 8 seconds is pretty damned good for a SUV at this price range.
Get your problems fixed and get a different vehicle. Getting angry and losing focus won't solve your problems.

Tell me when this thread is updated: (Registration is not required)

Add to my Tracker Send me an email

Showing posts 1 - 20 of127
< prev page
|
Go to last page| Jump to page:
Type in your comments below
Name
(appears on your post)
Comments
Characters left: 4000
Type the numbers you see in the image on the right:

Please note by clicking on "Post Comment" you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

17 Users are viewing the Chevrolet Equinox Forum right now

Search the Chevrolet Equinox Forum:
Topic Updated Last By Comments
Equinox having trouble starting (Aug '07) 3 hr haitham yalda 195
2011 Equinox door chime will not shut off after... (Dec '13) Jul 9 Donna 5
Equinox air conditioner (Apr '08) Jul 3 krugger 264
Engine Misfire/Sputter (Jan '11) Jul 2 david 83
2007 Equinox ignition key not releasing like it... (Aug '10) Jul 2 Connie 89
2005 chevy equinox problems (Feb '10) Jul 2 michael Morgan 43
'05 wont start a flash flood. Jul 1 Melissa 1
•••

Buy a New Car


Zipcode:
•••
Enter and win $5000
•••
•••