View Full Version : Hear of this?


mikeay
04-08-06, 11:36 AM
Cadillac isn't on the list, but it's interesting to note that they went back to 1995.

Source:
http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20060330/whistleblower_gm_060406/20060406?hub=TopStories

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CTV lifts hood on potential problem in some GM cars

var byString = "Kathy Tomlinson"; var sourceString = "CTV News"; if ((sourceString != "") && (byString != "")) { document.write(byString + ", "); } else { document.write(byString); }Kathy Tomlinson, CTV News
It's a simple component buried deep under the hood -- in some 1 million General Motors vehicles sold in Canada alone. It has the potential to cause huge headaches though, for the GM vehicle owners.
It's an intake manifold gasket, put in at the GM factories, in some makes and models between 1995 and 2003. According to GM's own internal service bulletin, the part can "degrade" -- causing coolant to leak -- sometimes into the engine. Several vehicle repair mechanics told CTV that in the worst case scenario, the coolant mixes with engine oil -- making the oil ineffective -- and damaging the engine.
They say in extreme cases, the engines overheat and seize completely -- which means the vehicles need complete engine replacements. Some GM customers have been hit with repair bills of up to $5000 -- after their warranties have expired.
"I started to cry," said Ontario resident Lisa Slatter, whose 2002 GM Montana needs at least $1700 worth of repairs. "I cried and I cried because I thought I don't know how I'm going to pay for this."
Slatter's problems started when her vehicle had less than 100,000 kilometres on the odometer. It was leaking coolant, she said, and her warning light was on. An independent mechanic diagnosed a leaking intake manifold gasket -- and told her she should get it replaced.
Eventually, her GM Montana broke down completely. Now, she needs a new head gasket -- a significant repair.
"I didn't know (how serious that problem was) until my thermostat was over in the red," Slatter said. "It totally overheated. Because the coolant was gone."
"This is absolutely not normal wear and tear," said Kirk Robinson, an independent mechanic who worked as a GM service technician several years ago. He also hosts a call-in cable TV show in Toronto, called "Auto Talk".
Robinson agrees with several other mechanics, who told CTV they see and hear from GM customers with the same problem almost every day. Kirk told us he does repairs associated with GM intake manifold gaskets at least once a week -- and says it's the number one complaint he hears during his call-in show.
"It's very well known in our industry that this is a fault," he said. "It's definitely a manufacturing defect."
It turns out that GM has known about the problem for years. CTV obtained copies of four GM internal service bulletins -- from 2001 to 2004 -- warning General Motors dealers about the potential problem. For example, in 2001, GM wrote:
"Some owners may comment on excessive engine coolant consumption, or an engine coolant leak near or under the throttle body area of the upper intake manifold." "Upper intake manifold composite material may degrade...and could result in an internal or external coolant leak."
GM's service bulletins list several vehicles potentially affected -- 23 makes and models manufactured between 1995 and 2003. Since then, GM has come out with a new, improved intake manifold gasket. Still, mechanics say, the old part continues to break down in vehicles that haven't had it replaced.
Robinson, for one, thinks GM should have called all the potentially affected vehicles in for full repairs, when they first identified the problem.
"I think they should have brought (the affected vehicles) back and fixed it a lot sooner," he said.
"I think this is the biggest problem that I've ever seen with automobile manufacturers," said Phil Edmonston, who writes the consumer car guide Lemon Aid. "I really believe it's the biggest problem GM has ever had."
There's an on-line consumer petition -- with 11,000 signatures from GM customers -- calling for a voluntary "goodwill" recall by GM. In Canada, The Automobile Protection Association has logged 800 complaints. There are class-action lawsuits brewing in the U.S., where Edmonston now lives.
"The way to fight is just simply send a registered letter or an e-mail (to GM)," Edmonston told CTV, during an interview in West Palm Beach, Florida. "If your vehicle is not reasonably durable and has a mechanical defect, any judge on any bench -- small claims up to the Supreme Court of Canada -- can make that company pay."
Edmonston said he knows of several cases where GM has paid for intake manifold gasket repairs -- beyond the warranty period -- when customers have made a big fuss. He believes GM should now cover all related repairs, on all its affected vehicles.
CTV asked General Motors several times for an on-camera interview. The company sent a statement instead, which says, in part:
"An intake manifold gasket concern can arise from a variety of causes. It is for this reason that any concern a customer may have beyond the warranty period is handled on a case by case basis," wrote Stew Low, director of communications for GM Canada.
He also indicated there will be no voluntary recall of affected vehicles.
"GM does not plan to issue any type of goodwill action regarding the intake manifold gasket situation."
GM vehicles potentially affected (source: GM Technical Service Bulletins):

1995-1997 Buick Riviera
1995-1998/2000-2003 Buick LeSabre
1995-1998/2000-2003 Buick Park Avenue
1996-1998/2000-2003 Buick Regal
2000-2003 Buck Century
2002-2003 Buick Rendezvous
1996/1998-2001 Chevrolet Lumina
1998-2003 Chevrolet Monte Carlo
1997-2003 Chevrolet Venture
1999-2003 Chevrolet Malibu
2000-2003 Chevrolet Impala
1995-1998 Oldsmobile Ninety Eight
1995-1998 Oldsmobile Eighty Eight
1998 Oldsmobile Intrigue
1996-2003 Oldsmobile Silhouette
1999 Oldsmobile Cutlass
1999-2003 Oldsmobile Alero
1995-1998/2000-2003 Pontiac Bonneville
1997-1998/2000-2003 Pontiac Grand Prix
1996-1999 Pontiac Trans Sport
1999-2003 Pontiac Grand Am
1999-2003 Pontiac Montana
2001-2003 Pontiac AztecGeneral Motors Canada encourages any of their customers to contact their Customer Communications Centre at 1-800-263-3777 if they have questions regarding their vehicle or service needs.
Send us your tips, stories and ideas to CTV Whistleblower:

Email address: whistleblower@ctv.ca (whistleblower@ctv.ca)
Phone number: 416-313-2494
Mailing address:
Whistleblower
c/o CTV News Toronto Bureau
444 Front Street W.
Toronto, Ont. M5V 2S9

mjd
04-08-06, 12:07 PM
This is interesting.

Zorb750
04-08-06, 03:29 PM
Looks like all of the 3.4 liter V6 and some of the 3.8 liter V6 vehicles.

DopeStar 156
04-08-06, 03:36 PM
1999-2003 Chevrolet Malibu
Uh oh...

FredMaxwell
04-08-06, 03:41 PM
How difficult is that to replace on a Montana?
Not sure if the warranty we have covers that,
It DOES cover overheating and electrical AND wear&tear damage though.


Well and it is an exlcusion policy (it names components NOT covered
rather than covered components)

DopeStar 156
04-08-06, 04:00 PM
I just called a Chevy dealer about my Malibu because every so often my low coolant light comes on and I have to add some. I'm gonna have it looked at this week. They pretty much told me it's my problem since it's no longer under warranty at 74,000 mi.

Zorb750
04-08-06, 05:09 PM
Dopestar, you should be able to fix it yourself. If you have the room to get to it, the repair's not difficult.

DopeStar 156
04-08-06, 05:16 PM
No way. That engine is so crammed in there (3.1 V6) it's a pain in the ass to do so much as check the oil... Besides we have a dealer warranty still in effect on the car until 80k or August so we don't have to pay for much. I'm taking it to the shop I usually go to and not the dealership since the shop will honor the warranty.

addison_ii
04-08-06, 07:26 PM
I had to have my intake manifold replaced on my 95 Bonneville back in 2000 because of that same problem.

Ranger
04-08-06, 07:47 PM
I had to have my intake manifold replaced on my 95 Bonneville back in 2000 because of that same problem.
Keep a close eye on it. The problem is the EGR "stove pipe" that comes up throught the intake just behind the TB. It gets very hot and burns through the manifold causing it to leak. I replaced the manifold on my wifes '96 Bonneville (3800) last summer but I made a modified "stove pipe" to keep it from happening again. Common and well known problem on those engines.

Stoneage_Caddy
04-08-06, 10:18 PM
the 3100,3400 v6 engines have been notorious about this issue , ive even seen afew 3800 series 2 engines haveing the issue , just not in the sheer numbers the 3100 and 3400 folks get it ....there is always one or two of these in our shop getting a intake manifold gasket per week ....

Ranger
04-08-06, 10:33 PM
I hope they got it fixed. My youngest daughter has an '04 Grand Am with a 3100 or 3400, not sure.

Stoneage_Caddy
04-08-06, 10:40 PM
i think so the article says 03+ is fine ....i just got my grandparents a 05 century with 3100 power , hopeing the issue was settled by 05 ...plus anything is beatter then the focus they had ...

the current 3500 seems to be a good little engine too ...

Its really amazing to trace how far that little 2.8v6 came since the early 80s strapped to a citation ....in its latest form its 1.1 liters larger has varible valve timing and makes 240hp ....over twice the original output ...

Ranger
04-08-06, 10:58 PM
Yeah, I had one of those 2.8's in a Chevy Blazer. Almost as underpowered as the HT4100.

DopeStar 156
04-08-06, 11:46 PM
I have no power complaints from my 3100 V6 in my Malibu. That car really gets up and goes. It's my rice killer.