Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!





Chevrolet Colorado

1394042444551

Comments

  • p100p100 Posts: 1,116
    I had to undercoat the wheels wells on my $ 36K sticker Silverado Z71 because there was nothing but painted sheet metal in the back wells, and in the front they did not fully line the wells with plastic. Well, several cans of rubberized undercoating took care of that, but I believe that GM should have used full plastic wheel well liners, or at least undercoat the vulnerable spots like this at the factory.
  • dirkworkdirkwork Posts: 210
    >Well, several cans of rubberized undercoating took care >of that, but I believe that GM should have used full >plastic wheel well liners, or at least undercoat the >vulnerable spots like this at the factory.

    They would have had the money for doing this, but Chevy was too busy filming commercials of their trucks spraying mud, having huge props being set in them by sweaty hard-hat wearing guy, pulling horse trailers, etc. Of course there was also the heavy-lift helicopter time for picking up their SUV's and putting them on top of completely unbeliveable locations for an advertisement that they paid to run at every commerical break during and a month after the Olympics! On second thought, they probably used a computer to put the trucks up there graphically, but the ad time was still millions I'm sure.

    FYI - my now departed '95 Dodge Ram 4x4 had full wheel well liners, but drank like sailor on shore leave.

    Dirk
  • rgrossmanrgrossman Posts: 37
    Have a 2005 Z71 crew cab with 26K miles on it. Check engine light came on steady Monday night. Was hoping it was a minor problem but it appears that I have the same problem that has been well documented in this forum. Engine misfire due to sticky valve. Am now waiting for the dealer to tell me how long to repair? Dealer has been pretty good so far. Warranty is covering a rental (big [non-permissible content removed] Silverado :) ). Anything else I should know about from folks that have gone through this problem? I appreciate any replies. Thanks.
  • lynne77lynne77 Posts: 9
    Well lets see on my 2004 crew cab same mileage as yours the dealership had my truck in the shop 15 days. They first fixed the valve springs then the check engine light came back on. They had to call tech support to see what to fix next. They replaced the valve head and said everything was fine. Now I have this issue with the truck were if fells like it is jerking or skipping kind of hard to explain. But when it does this you can watch the RPM needle bounce. I have taken it back to the original dealership they spent about a half an hour looking at it and test drove it less than a 1/2 mile and told me they could not duplicate the problem. I have left it with another dealership overnight they hooked it up to the computer and ran it and could not duplicate the problem either. I have also noticed the horse power I used to have it not there either. I have had it rev 6500RPMs before it will shift to the next gear. I know something is not right but because the computer is not telling them anything is wrong they do not know what else to do. Good luck with your repairs. I hope things turn out better for you then they have for me so far. :confuse:
  • mcarlemcarle Posts: 5
    My Colorado 58000 cant rember all the mileages at problems but here is some things the i have done.3sets of tires.1 heater control.1 gastank sensor.1 paint job.1set of front coil springs.replace injectors.valve job.now replace head when parts come in.good thing that i dont use it for work.gm head ofice called me and said that was too bad. [do you want extend warrenty] cant type my coment on the computer.in 20 months the truck has been the shop for about 50 days the longest stay was for 38 days at once.It is nice to see that iam not the only one that loves my truck.MY CHEVY.........................
  • lynne77lynne77 Posts: 9
    Have you checked your states lemon law. I my state if the vehicle is in for repair for 30 cumulative calendar days you can try to get a replacement under the lemon law. I am in the same situation. I do love my truck I just hate having to deal with the issues and GM stating its too bad. They should back the products they make and sell.
  • rgrossmanrgrossman Posts: 37
    Well, got confirmation this morning that the dealer will be replacing the valve springs. Unlike some others experience in this forum, my dealer seems to think they will be done with the work by Monday or Tuesday next week. Perhaps now that this is a well known problem the parts are more readily available and the diagnosis is a little easier. If they finish on Tuesday that would mean 5 days in the shop compared to 2 weeks or more for some of the earlier repairs that people have had for this same problem. Keeping my fingers crossed that they stick to that schedule and put the engine back together properly so I don't have to go through the process again. In the meantime, the Silverado that GM is paying for me to rent had its own check engine light come on. :( Thankfully, not my problem. :D
  • p100p100 Posts: 1,116
    Something tells me I made the right choice when I decided to buy a crew cab Silverado instead of Colorado. The problems you are describing are quite a list for a 2 year old truck. Your truck needed a complete paint job? 38 days at a time in a shop?
  • nosirrahgnosirrahg Posts: 870
    As a possible future owner of a Colorado, is there anything one could do as a preventative measure to avoid the valve spring problems? Would running synthetic oil help?
  • mcarlemcarle Posts: 5
    Your synthetic oil will be a good start they tell me that the oil makes the valve stick the you know what is next :) :)
  • mcarlemcarle Posts: 5
    Your synthetic oil will be a good start they tell me that the oil makes the valve stick the you know what is next :) :)
  • p100p100 Posts: 1,116
    The only effective preventive measure to avoid the valve spring problems is to stay away from this truck until GM fixes the problem. The springs will not get stronger or more durable if you use synthetic oil.
  • nosirrahgnosirrahg Posts: 870
    So what exactly is the deal with the valve springs? When they fail, what kind of damage is done (or is it just a matter of replacing the springs and moving forward)? Seems like if the problem is specifically the springs, it wouldn't be too difficult to fix this problem on future trucks. Does anyone know if they've identified the cause of the problem?

    I really like the looks of this truck, and I'm a GM fan from way back...but after taking a look at Consumers Reports this weekend and how they bashed the reliability of the truck, combined with this valve spring problem that won't seem to go away, I'm starting to have doubts.
  • motorhead1motorhead1 Posts: 111
    Is there any warning that the valve spring is about to go out? I have 30k on my I5 and have had no engine problems with it but with all of the trouble many are having I`m thinking about getting an extended warranty just in case. My truck has been trouble free for nearly two years.
  • lynne77lynne77 Posts: 9
    My truck was the same way trouble free. There is no warning signs. The check engine light will come on after a few starts it will shut off. Get you truck checked at a dealership as soon as the check engine light comes on. GM knows they have a problem with the valve spring they are from what I understand working on fixing this in the newer models. The code that kicks the check engine light on is a random misfire. Good luck with your truck.
  • nosirrahgnosirrahg Posts: 870
    So when the valve springs fail, does this cause other extensive engine damage (i.e. pistons hitting valves, etc.), or does the spring just break, the engine sputters and dies, and then you have to replace the springs?

    Not saying bad valve springs are something one should accept, or replace every 30k miles as a preventative, but realistically if the odds are say 1 in X vehicles, and then when it does happen the repair is fairly isolated to replacing the springs, that's not as bad as causing major engine damage. Just trying to weigh the odds, and the consequences of a problem before I commit my $$.
  • esjrennesjrenn Posts: 9
    Does this happen to the 5 and 4 clyender engines the same? Or is it primeraly the L5?
  • lynne77lynne77 Posts: 9
    They just completed the repairs on my 04 last month. They replaced the valve springs first and the check engine light came back on so they had to call GM to find out what to fix next. They ended up replacing the value head and according to them this has fixed the problem. I think each truck could be different and it depends on how long you have to problem before it is fixed on how much damage it does. To be honest. The check engine light was the only thing that made me aware of a problem. My truck was running fine no problems what so ever. The springs do not break they stick they keep the valve from opening and closing properly. The choice is yours on the warranty but it may be worth it in the long run. I have a friend who works for a GM dealership and on a canyon it took over $6000 in repair work to get the canyon run correctly.
  • lynne77lynne77 Posts: 9
    From what I have read and heard it is primeraly the I5 but some people have had problems with the 4 as well. GM knows they have a problem and replacing the valve springs seems to correct it. What makes me mad about the whole situation is that they did not do a recall to correct the problem it is when your check engine light comes on that you have to have them fixed. This just does not seem right to me.
  • mike2250mike2250 Posts: 29
    If sticking valve springs is the problem; I have to wonder if it has anything to do with my dealers policy is to replace engine oil with synthetic blend. They charge the same price so I don't think it's a profit issue. Perhaps the synthetic is just enough to keep the valve springs lubed.
    I never heard of a bad valve spring without a valve slap or knock. This is a strange one.
This discussion has been closed.