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Chevrolet Colorado
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Comments
I have had mine in the shop 3 times for this problem. They have replaced the expansion valve in the ac and also the engine PCM. The Colorado/Canyon have a new ac system that is controlled by the PCM instead of a pressure cycle switch. The shop has talked to GM on all 3 times it was in the shop and they have not fixed it yet. The final answer was the it is NORMAL along with the fact the system blows very cold and then tempid air all the time. The cycle seems to be every 20-30 seconds which is when I feel the very cold air along with hearing this whirring noise. I have seen others have decribed this noise as a wet finger going around the rim of a glass. The guys at GM say it is the gas passing thru the expansion valve when the compressor comes on. The PCM then turns off the compressor when the evaporator gets to 32 degress to keep it from freezing. Since the entire system is so small (ie effort to reduce use of R-134a) this happens very fast, hence the 20-30 second cycles. Quoting GM "Them problem is the system has no mass, making it get very cold fast, then it has to warm up to keep from turing into a block of ice."
The service mgr and I drove 3 2005's as they didn't have any 2004's left. All 3 did the warm/cold cycle and only one really had a noticeable whirring noise. The Engineers answer for that was "Well they all should have it, I can't tell you why the 2005's had less noise than the 2004's we have not made any changes" And from what I gather, they are not going to make any. I will continue to talk to the service mgr every time I have the truck in for service and I hope all you do they same.
I searched on other forums and found that at least eight others with the same model have the identical vibration problem that I am having. I think the truck can be a good truck down the line if they can ever get the bugs worked out.
Other owners of reg cab models have had the same complaint, and the diagnosis seems to be a drive shaft problem.
The problems never stop! Both front shocks were replaced at 525 miles. (leaking oil) The fuel leveling sensor has been replaced twice. (fuel gauge not reading) Both front tires are cupping, even after an alignment. (dealer is ordering 4 new tires) The paint is peeling off one of the wheels. (Dealer ordering new wheel) Bad vibration at 45-55mph (Dealer has no idea! They might all do this! The dealers in the area don't have another regular cab 5spd to compare it to,) And the best of all, after a day of rain, the drivers side floor is completely saturated in water! (Door closed and windows up, my seat is dry) My truck only has 2900 miles on it!
The Most Dependable, Longest-Lasting Trucks - Chevy Trucks
I have had my 2004 Crew Cab Z71 2WD, auto, I-5 since the beginning of May and the only problem I have had is with the noise from the A/C. Been discussed before, it isn't very annoying, especially with the radio on, but it still shouldn't be there. Also, the temperature in the rear view mirror isn't accurate at all 15-20 degrees off at times. Nothing major.
Anyway, I took my truck in to the dealer yesterday for the first oil change at about 2500 miles. (Dealer provided first oil change free at purchase.) I had looked in my manual before, and it states to only use oil that meets GM spec GM6094M. I asked the service guy about it on the phone when I made the appointment and he had no clue. When I took it in I showed him in the book and he still had no clue. He had never seen that before. He said they use Quaker State synthetic blend in bulk in the back and he "imagines" it meets GM specs. What kind of answer is that?
Anyone check out there "oil life" in the dashboard display? If the truck is on, all I get is odometer and tripmeter. If I have truck off, but key in the on position, I get "oil life", but it still shows odometer reading. According to the manual, it looks like it should display an estimate of oil life left.
In the manual, it says the truck should be off with key in on position to reset, but doesn't state anything about that for viewing oil life remaining. Anyone had luck with that?
Cracks me up too. They add this oil life system, and even seen GM talk about the benefits of this conserving oil. The dealer still puts a sticker in the window to come back in 3000 miles or 3 months.
I've gone on long enough.
Have a good day!
I too don't see in the owner's manual where it says that the oil life remaining can be displayed. Apparently a message is only displayed when the oil should be changed.
This is unlike my Cadillac STS which displays the percent of oil life remaining, and subsequently "change oil soon". I'll play with the system some more the next time I'm bored waiting for my wife in the supermarket parking lot.
Any one else have comments on oil life messages ?
Outstanding quality control!
I got the oil changed today at the dealer.
Four new tires!
A new wheel!
and they are still working on the vibration issue.
I made it to my first oil change,
maybe I should celebrate!
If somebody out there has had the "oil life" message come on please post here to let us know and also at what mileage it came on at. Personally, I wasn't willing to let my engine burn up just to see if it really worked. I normally change the oil every 6-7K miles anyway but I'm curious to know when the truck says I should change it.
Thought I was going to have to wait for an oil crisis or perhaps an oil catastrophe-- like we aren't in one right now? Yet the manufacturers still produce v6 and v8 in minitrucks and small cars???.
Looks like Colorado is the only game in town!!! And the things seem to have nice HP in addition to the best in class mileage. Nice looking truck and GM is producing it on state of the art machinery. Can't wait for a test drive.
GM leads the way with 24.9% jump
http://www.freep.com/money/autonews/sales2e_20041002.htm
Your descision to buy a colorado helped Bring GM back to life! We don't need you toyota, nissan, America can make her own cars and trucks!
No doubt if this trend is to continue, the North American automotive industry will be destroyed just like the electronics industry was- by having manufacturing done by third world slave labour! Being a tool and die maker, all I can say is that this is not good. Who knows- maybe that all American Ford or Chevy will say Made in China on it with final assembly in North America in ten years time! I think this is well on it's way to being fact-the Chevy Equinox has a made in China motor in it already!
The solution to this problem could be to increase the cost of doing business abroad and decrease the cost of doing it at home.
This could be done by warning China and Japan that if they don't let their currencies flow (in the present state the lower their currency in relation to ours the more money they save manufacturing goods, then shipping them here) that we would post a tarrif, like the steel tarrif but longer lasting.
At home we could reward companies who dismantle offshore businesses with tax breaks and liability differrals, and discourage union operations, which any accountant could tell you reek havoc on the balance sheet.
We need to act or else we will become a retail nation...
This was a mis-print in the 2004 owners manual.
There are a few others as well.
As for going by the system. I use Mobil 1 Synthetic and still changed it at 7000 miles before the oil life system told me to.
Too much old school from my dad I guess.
"frustrated in Virginia"
Does anyone know if the Problem has been corrected for the 2005 models.
I'm very happy with mine. I also drove the Tacoma and Dakota crew cabs and chose the Canyon. I expect their new designs will be better than the old/current, but I couldn't wait a year or two to find out.
That sounds like a tire balance problem. An engine balance problem would occur at a certain rpm regardless of speed. A tire/suspension balance problem would occur at a certain speed regardless of rpm or whether the vehicle is in neutral.
My experience is like mrnimmo said - typically vibration during driving/various speeds is tire/wheel related. The only bad driveshaft I had (years ago) got worse with speed and then the slip yoke broke.
GM is going to loose big in this market segment, especially with all of thiese problems and thin metal.
I know GM has to improove CAFE numbers, but they could do it through DOD and hybrid options. Offer two engines to satisfy the enviromnentalists and one to satisfy the rest of us.
So... were is the 275hp 4.0(how big is it?) V6 Gm? Oh, and BTW, if you add VVT and/or DI you could increase power and save fuel economy...
Oh yea, I forgot GM can't do that so fast, those UAW need more health insurance than any other automaker doing business through US, Non UAW plants.
No wonder the new Equinox engine is build in China, and transmission in Japan.
In the past, GM tended to apply it's resources to 'fixing what is broken'(manufacturing level)rather than identifying and eliminating problems at the beginning of a program (Engineering Design level), where changes are far less expensive to implement (this is how the Japanese do business after all). The Colorado program was one of the last of these 'old school' launches, and while I agree that there were a inordinate number of issues to address during the launch (not all of them GM's fault...I'll leave it at that), these problems were identified and corrected in current production in a remarkably short time frame. The trucks rolling off the line today are positively world-class!
I'm not trying to formulate excuses for the Colorado launch, it SHOULD have gone better...but GM's quality and reliability ARE on par with the competition-and there is ample data (JDP, IQS, etc..)to support this view. They played a bad first inning, but are certainly still very much in the game with their current production.
By the way...rumour has it that they are going to offer a turbocharged version of the I-5 in the H3 (which will be officially unveiled tomorrow)...maybe it will see it's way into the powertrain options on the Colorado/Canyon as well...
EVERY critical fastener is 'torque-monitored' by a computer system. If the bolt is attached and tightened above or below a specified range, the system generates a fault code against the VIN, and it cannot be shipped (system won't release the VIN)until the torque is verified by the Inspection Department, afterwhich it is signed off by the individuals who did the verification and cleared in the network. The torque data is retained as per regulations so that with a VIN, you can actually go back and verify what the torque was when it left the factory...I cannot see any way that a safety related fastener could leave the factory outside it's designed torque-there are too many failsafes to allow this to happen!
Did the dealer forward this part to the Warranty Group for evaluation? How was the fastener broken?
paint peeling on wheel (New Wheel), Interior door handle came off (New handle), Seat belt bolt broken (New belt assembly) These are problems fixed! These are problems I still have: A strange vibration from 45 to 55 mph (Not coming from the tires, replaced), hesitation when going around corners, or under load (hill or a/c on), it's almost like it cuts out for a second and kicks back in again?, the gold paint is now peeling off the bow tie on my grill ( I have seen other chevys with this issue). Who signed off on all these problems at the factory. I have documentation and the will to fight this!!