Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Customers Knock GM on Noisy Engines
Detroit Free Press ^ | November 14, 2003 | Jocelyn Parker

Posted on 11/14/2003 2:46:13 AM PST by ShadowDancer

Edited on 05/07/2004 7:13:11 PM PDT by Jim Robinson. [history]

Owners of some of General Motors Corp.'s most expensive light trucks, including the GMC Yukon and Chevrolet Silverado, say the vehicles they paid more than $30,000 for may be worthless now because of loud, irritating knocking noises in their engines, lawyers tell the Free Press.


(Excerpt) Read more at freep.com ...


TOPICS: Business/Economy; Miscellaneous
KEYWORDS: generalmotors
Navigation: use the links below to view more comments.
first 1-5051-100101-150151-192 next last

1 posted on 11/14/2003 2:46:13 AM PST by ShadowDancer
[ Post Reply | Private Reply | View Replies]

To: ShadowDancer
You want LOUD? Try having a neighbor with a newer DIESEL truck! This dadgum thing wakes the dead when its running. Fortunately he had had the good sense to get rid of it. All of the newer diesel trucks I have seen are ridiculously LOUD.
2 posted on 11/14/2003 2:52:04 AM PST by Khurkris (Ranger On...currently posting from outside of CONUS.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowDancer; martin_fierro
The company, however, promises that the knocking won't cause any damage to the engine because the carbon that has formed on the ring land isn't hard enough to damage the cylinder wall.

If this stuff is softer than the cylinder wall, the impact should be dislodging it and it should be going harmlessly out the exhaust (well, harmlessly until it clogs the cat). This sounds strange.

3 posted on 11/14/2003 2:54:44 AM PST by drlevy88
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowDancer
Time to get out the motor honey...
4 posted on 11/14/2003 2:57:02 AM PST by AmericaUnited
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowDancer
According to Martiny and his attorney, Vince Megna, GM finally bought back the truck about a month ago. The company paid Martiny's $20,000 loan balance, plus another $20,000 and took care of his attorney fees.

This just made my hearing much more acute.....

5 posted on 11/14/2003 3:06:04 AM PST by Leroy S. Mort
[ Post Reply | Private Reply | To 1 | View Replies]

To: Khurkris
I always thought piston slap was what happened to the worn out engines of old neglected junkers.
6 posted on 11/14/2003 3:07:09 AM PST by Post Toasties
[ Post Reply | Private Reply | To 2 | View Replies]

To: Leroy S. Mort
"This just made my hearing much more acute....."

LOL

7 posted on 11/14/2003 3:16:39 AM PST by G.Mason (Lessons of life need not be fatal)
[ Post Reply | Private Reply | To 5 | View Replies]

To: B4Ranch; Pete-R-Bilt
I havent had this problem with my truck. oh, but it's a dodge.
8 posted on 11/14/2003 3:31:05 AM PST by glock rocks (just keep yer hands where I can see them.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowDancer
<. . . consumers, many of whom are loyal GM customers, say they're disappointed that there isn't a fix for the problems.

I had not heard about this earlier. Wonder how many engines are affected?

Sounds like a specific piston ring design used in some engines, but not all. The "fix" is a replacement short-block by GM. I suspect this is being done in some cases, as opposed to buying back the vehicle.

I'm curious whether any FReepers have had this specific engine knock experience & how it was dealt with by GM.

9 posted on 11/14/2003 3:33:13 AM PST by toddst
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowDancer
. . . consumers, many of whom are loyal GM customers, say they're disappointed that there isn't a fix for the problems.

I had not heard about this earlier. Wonder how many engines are affected?

Sounds like a specific piston ring design used in some engines, but not all. The "fix" is a replacement short-block by GM. I suspect this is being done in some cases, as opposed to buying back the vehicle.

I'm curious whether any FReepers have had this specific engine knock experience & how it was dealt with by GM.

10 posted on 11/14/2003 3:35:47 AM PST by toddst
[ Post Reply | Private Reply | To 1 | View Replies]

To: Post Toasties
Piston Slap

11 posted on 11/14/2003 3:36:01 AM PST by ShadowDancer
[ Post Reply | Private Reply | To 6 | View Replies]

To: ShadowDancer
contact between the engine's pistons and cylinders, may be damaging in the long run.

Sounds like the beancounters have been playing around in the engineering department again.
12 posted on 11/14/2003 3:41:06 AM PST by pt17
[ Post Reply | Private Reply | To 1 | View Replies]

To: glock rocks
Maybe I need a marriage of a GM transmission with my Dodge 5.9 V-8....
13 posted on 11/14/2003 3:41:11 AM PST by dakine
[ Post Reply | Private Reply | To 8 | View Replies]

To: toddst
Back in the late 70's and early 80's time frame, GM signed a consent decree with the federal government because all of the small block engines made during that time, across all of the GM line which includes all makes and models had a problem with the cam shaft not being sufficiently hardened
and therefore wearing out prematurely.

I had purchased a new 79 Chevy K30 crew cab pickup truck. At about the 20,000 mile mark, the engine lost power and started knocking. My local dealer replaced the cam and lifters with the cost for them and the labor to replace them totally covered by GM.
14 posted on 11/14/2003 3:44:41 AM PST by dglang
[ Post Reply | Private Reply | To 9 | View Replies]

To: dglang
Back in the late 70's and early 80's time frame, GM signed a consent decree with the federal government because all of the small block engines made during that time, across all of the GM line which includes all makes and models had a problem with the cam shaft not being sufficiently hardened and therefore wearing out prematurely.

I bought a 1984 Cadillac El Dorado new, had the same experience with power loss. They replaced the entire engine with no arguement.

15 posted on 11/14/2003 3:49:02 AM PST by toddst
[ Post Reply | Private Reply | To 14 | View Replies]

To: glock rocks
I was wondering who would be first, a Dodge or a Ford man.

;-)
16 posted on 11/14/2003 3:53:24 AM PST by FreedomPoster (this space intentionally blank)
[ Post Reply | Private Reply | To 8 | View Replies]

To: ShadowDancer
If you accelerate, you can hear this vehicle 100 feet away.
Way back when ... I had a '68 Camaro SS (350) and when I accelerated you could hear it 100 miles away.
17 posted on 11/14/2003 4:08:37 AM PST by oh8eleven
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowDancer
I've had numerous GM vehicles with big block engines (especially the 350). Love 'em...........including my '93 Suburban.

Has over 150K miles........runs like a watch.........and ..........it's paid for.

18 posted on 11/14/2003 4:31:43 AM PST by RightOnline
[ Post Reply | Private Reply | To 1 | View Replies]

To: oh8eleven
I had a '68 Camaro SS (350)

Ask my neighbors about my 96 F-1 camaro. LOL, they with they could hear the engine over the full exhaust.

19 posted on 11/14/2003 4:50:47 AM PST by doodad
[ Post Reply | Private Reply | To 17 | View Replies]

To: doodad
RRR with=wish
20 posted on 11/14/2003 4:51:27 AM PST by doodad
[ Post Reply | Private Reply | To 19 | View Replies]

To: FreedomPoster; glock rocks
"Some experts say the knocking, caused by contact between the engine's pistons and cylinders, may be damaging in the long run."

Really? Ya don't say.

What would the world do without "eggspurts"?

21 posted on 11/14/2003 4:57:09 AM PST by Vigilantcitizen
[ Post Reply | Private Reply | To 16 | View Replies]

To: toddst
My 2003 Silverado has 50,000 miles on it. It has always had a bareley perceptable nagging little knock that I've ignored. Just within the last month it has started the cold start knock. I thought maybe the oil pump was going out and had it replaced. This didn't solve the problem. On my next visit to the dealer I'll take a printed version of this article.
22 posted on 11/14/2003 5:02:07 AM PST by umgud (gov't has more money than it needs, but never as much as it wants)
[ Post Reply | Private Reply | To 15 | View Replies]

To: RightOnline

>>I've had numerous GM vehicles with big block engines (especially the 350). <<

Just to be a nitpick, a 350 is a small block ;)

23 posted on 11/14/2003 5:06:29 AM PST by Malsua
[ Post Reply | Private Reply | To 18 | View Replies]

To: RightOnline
Ditto
24 posted on 11/14/2003 5:09:29 AM PST by texpat72
[ Post Reply | Private Reply | To 18 | View Replies]

To: glock rocks
I bought a new Dodge Dakota in 1999, and people tell me they're surprised I've had no trouble (to speak of) with it.
25 posted on 11/14/2003 5:13:26 AM PST by Marauder (If God lived on earth, liberals would sue Him.)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Khurkris
My 1995 GMC Turbodiesel is noisy on cold starts. I use it as my heavy loads farm truck(pulls 20,000 pounds) and for family long distance trips since it's got television, weather radar, GPS for marking nutrient application areas linked from satellite reports,(no sense fertilizing what doesn't need it) lapttop modem ports with chargers, and it can safely seat seven. All this while pulling my Airstream camper and getting 24 miles per gallon on the highway. It's cheap to operate. The engines are not made by GMC. The engine goes 400,000 to overhauls. It's a truck that when used for what it's designed for should last you at least 20 years. It should not be somebody's daily vehicle. I keep it in the farthest outbuilding from the house. It's gotta run ten minutes before moving most the time, and can get quite smelly while warming up, and needs to be kept plugged in to the coolant heater element any time OAT goes below 25 dgrees, if not the loud alarm tells you to stay put and get the coolant warmed up.

The best truck I've ever had. I still use an Isuzu for a beater, but funny enough, the little Isuzu gets lower fuel mileage and cannot tow anything over 1,000.

26 posted on 11/14/2003 5:13:53 AM PST by blackdog (Five clicks gets you 2600' of bright soft grass in the murkiness of night.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Post Toasties
I always thought piston slap was what happened to the worn out engines of old neglected junkers.

Or new engines that are poorly designed and/or manufactured.

27 posted on 11/14/2003 5:15:45 AM PST by mewzilla
[ Post Reply | Private Reply | To 6 | View Replies]

To: doodad
Ask my neighbors about my modified 03 Cobra with its Borla cat-backs.
28 posted on 11/14/2003 5:21:54 AM PST by SVTCobra03 (You can never have enough friends, horsepower or ammunition.)
[ Post Reply | Private Reply | To 19 | View Replies]

To: glock rocks; ShadowDancer; martin_fierro; B4Ranch; Pete-R-Bilt; toddst; dglang; RightOnline; ...
I'm looking at buying a midsized 4x4 with 4 doors. I think I've narrowed it down to the Tundra and the Dodge Dakota.

Any opinions? (Do blind, brand loyalty comments, please.)

Thanks.
29 posted on 11/14/2003 5:23:54 AM PST by Lee'sGhost (Crom!)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Marauder
the only problem I've had with the dodge was the shifter seal on the transfer case that leaked a bit of tranny fluid, and the ABS sensor replaced (the light came on) ... warranty stuff.

runs like a champ. but don't get me wrong about chevs... I've been driving chevies for 25 years. got a little fiberglass one in my garage :o)
30 posted on 11/14/2003 5:26:02 AM PST by glock rocks (just keep yer hands where I can see them.)
[ Post Reply | Private Reply | To 25 | View Replies]

To: Malsua; RightOnline
Be nice. It's a medium block. ;-)
31 posted on 11/14/2003 5:33:09 AM PST by FreedomPoster (this space intentionally blank)
[ Post Reply | Private Reply | To 23 | View Replies]

To: ShadowDancer
This is happening on my truck. If it is hot the engine sounds like its coming apart. I am taking it back today.
32 posted on 11/14/2003 5:42:12 AM PST by DainBramage
[ Post Reply | Private Reply | To 1 | View Replies]

To: DainBramage
Anyone know if there've been any technical service bulletins out on this?
33 posted on 11/14/2003 5:44:17 AM PST by mewzilla
[ Post Reply | Private Reply | To 32 | View Replies]

To: Malsua
The 350 is a small block the 454 and 502 are big blocks look for the new 570 big block.
34 posted on 11/14/2003 5:49:14 AM PST by Vaduz
[ Post Reply | Private Reply | To 23 | View Replies]

To: mewzilla
At first the tech bulletin involves just a ticking sound on start up that went away. Sounded like it was running real dry till the oil hit the top. They all said that was a normal condition of this engine, of course they only said that if you complained. Then the real loud piston slap starts and you are scared to drive it, and embarrassed because everyone standing within ear shot hears it and looks your way..
35 posted on 11/14/2003 6:12:52 AM PST by DainBramage
[ Post Reply | Private Reply | To 33 | View Replies]

To: DainBramage
Piston slap might be normal in a diesel engine, but not here. Sounds like they just messed up the engine design. FWIW, I know folks who've gotten good mileage on engines that knocked.
36 posted on 11/14/2003 6:23:51 AM PST by mewzilla
[ Post Reply | Private Reply | To 35 | View Replies]

To: Lee'sGhost
I'm driving a 4X4 Dodge V-10 1 ton and it takes care of my needs just fine. Try to locate a wholesale distributer, the guy who sells used cars to dealers, for fantastic savings. Get your truck at half price with 10k miles on it.
37 posted on 11/14/2003 6:23:53 AM PST by B4Ranch (Wave your flag, dont waive your rights!)
[ Post Reply | Private Reply | To 29 | View Replies]

To: Lee'sGhost
I hear nothing but good about the Tundra.
38 posted on 11/14/2003 6:26:04 AM PST by martin_fierro (_____oooo_(____)_oooo_____)
[ Post Reply | Private Reply | To 29 | View Replies]

To: mewzilla
I know folks who've gotten good mileage on engines that knocked.
I've got a '96 Cavalier with the 2.2L that knocks. It's got 125,000 miles and gets about 39mpg. It does burn through about a quart of oil every 2,000 miles or so, and it probably won't last forever, but it gets the job done, and it's not worth the money to fix it.
39 posted on 11/14/2003 6:28:34 AM PST by BMiles2112
[ Post Reply | Private Reply | To 36 | View Replies]

To: Leroy S. Mort
The answer is get a lawyer, then GMC will bend.
40 posted on 11/14/2003 6:32:51 AM PST by ampat
[ Post Reply | Private Reply | To 5 | View Replies]

To: toddst
>I'm curious whether any FReepers have had this specific engine knock experience & how it was dealt with by GM.

Our experience was not with a Chebby, but with a 2002 Nissan Pathfinder which developed a pinging or knocking sound at 43,000 miles.

The Nissan dealer was great. A couple of small parts had come loose, and had destroyed one cylinder. Nissan paid for a new engine and we were not out one penny. Thank heavens for extended warranties, as we had purchased this vehicle used.

The rice burner runs great, now.
41 posted on 11/14/2003 6:33:11 AM PST by Darnright
[ Post Reply | Private Reply | To 9 | View Replies]

To: ShadowDancer
Great... A few days ago I was just thinking that my 2002 Silverado was knocking an awful lot - I was going to fill it with a tank of premium to see if that did anything.

Still, I wouldn't have a problem taking it on a long trip. And I haven't noticed it being abnormally loud.

42 posted on 11/14/2003 6:33:37 AM PST by Mannaggia l'America
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowDancer
There should be very little carbon build-up on the pistons near the rings. The cylinder wall clearance has been established for decades and always worked before. I wonder if the piston design is different to give slightly better gas mileage? If the piston is slapping it is wearing out. There is little oil lubrication near the top of the piston.

BTW, I saw an advertisement for a new GM car, it is the Malibu MXX I think. Looks like a remake of the Shitation (Citation) hatchback. Doesn't GM ever learn?
43 posted on 11/14/2003 6:34:38 AM PST by Final Authority
[ Post Reply | Private Reply | To 1 | View Replies]

To: BMiles2112
I know they've fixed it, but I wonder if this was a design or a manufacturing flaw? Or both?
44 posted on 11/14/2003 6:35:22 AM PST by mewzilla
[ Post Reply | Private Reply | To 39 | View Replies]

To: ShadowDancer
"Some experts say the knocking, caused by contact between the engine's pistons and cylinders, may be damaging in the long run."

So they think it "may" do damage. Hmmmm.
45 posted on 11/14/2003 6:35:52 AM PST by gathersnomoss
[ Post Reply | Private Reply | To 1 | View Replies]

These engines have variable valve timing?
46 posted on 11/14/2003 6:37:04 AM PST by mewzilla
[ Post Reply | Private Reply | To 43 | View Replies]

To: glock rocks
Good luck with the paint, pal.
47 posted on 11/14/2003 6:37:13 AM PST by gathersnomoss
[ Post Reply | Private Reply | To 8 | View Replies]

To: SVTCobra03
Anything else or just cat-backs? Personally for me, Flowmaster's have a much warmer sound.
48 posted on 11/14/2003 6:38:00 AM PST by billbears (Deo Vindice)
[ Post Reply | Private Reply | To 28 | View Replies]

To: mewzilla
Not sure, but I would guess a mfg flaw, because I know three other Cavalier owners with the same motor, and none have the problem. Just a guess.
49 posted on 11/14/2003 6:39:03 AM PST by BMiles2112
[ Post Reply | Private Reply | To 44 | View Replies]

To: mewzilla
This isn't your typical ping ping ping, this is bang bang bang like something is caught in the fan.
50 posted on 11/14/2003 6:45:45 AM PST by DainBramage
[ Post Reply | Private Reply | To 46 | View Replies]


Navigation: use the links below to view more comments.
first 1-5051-100101-150151-192 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson