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#327 of 1033 Re: Engine Noise Question... [ericmn1] by mikefromaz Nov 21, 2004 (8:12 am)
Replying to: ericmn1 (Oct 21, 2004 2:14 pm) I have noticed what seems to be a bell like noise between 40-50mph. I know "bell" sounds vague, but it is definitely not a howling noise, but rather what you might expect to hear from a resonant piece of metal. I describe it as rhe sound you might hear from a circular saw blade when stuck, or the noise a wet finger would make when run around the rim of a wine glass. Of course even though my passenger mistook this noise for his cell phone ringing the other day, the dealership can't find it. Any and all replies would be greatly appreciated! Mike Replies to this message: bigred54 (Nov 29, 2004 8:28 pm)
#328 of 1033 Re: Sound? [durango5o8] by mikefromaz Nov 21, 2004 (8:29 am)
Replying to: durango5o8 (Jul 02, 2004 8:41 am) Yes! I have a harmonic "bell" like sound which comes and goes between 40-50mph. I hear it mostly on acceleration or deceleration. It is not a howling noise as the dealer (who couldn't find it), kept injecting, even though I corrected his use of the word "howling" three times but a resonant sound like running a wet finger on the edge of a wine glass. Sometimes it is barely audible, and the othe day when it happened on the interstate my passenger went to answer his cell phone! Any and ALL replies are welcomed email at mikefromazaol.com. Replies to this message: ocmike3 (Nov 21, 2004 3:56 pm)
#329 of 1033 Re: Sound? [mikefromaz] by ocmike3 Nov 21, 2004 (3:56 pm)
Replying to: mikefromaz (Nov 21, 2004 8:29 am) I haven't heard it on mine, but past vehicles over many years, that type of sound generally was something in the exhaust system or muffler - actually resonating at certain frequencies (speed/exhaust push or cavitation when letting off on pedal) The last time I had it, it turned out to be a loose baffle in the muffler.
#331 of 1033 new truck by motorhead1 Nov 23, 2004 (5:41 pm)
Well I`ve had my new Colorado extended cab 4 wheel drive for 1 month and no noise, vibration or water leaks. I`m really impressed by the power of the 5 cylinder. Funny thing, I often get bright lights flashed at me at night when my lights are on dim. I know that the lights are very good and doesn`t seem to be adjusted to high. Good luck fellow Colorado owners.
#332 of 1033 Re: Leaking GMC Canyon 2004 [mynewtruck] by panther8 Nov 24, 2004 (4:45 am)
Replying to: mynewtruck (Nov 15, 2004 6:35 am) Your water is coming in from the cowel area under your wipers. My truck had the same problem. I know it is very frustrating, but they can fix this problem. They need to caulk the body seem under the wipers. I hope this helps. My dealer was great about this problem, they had a water leak specialist.
#333 of 1033 Re: [akshunj] by panther8 Nov 24, 2004 (6:58 am)
Replying to: akshunj (Nov 07, 2004 6:50 pm) Leak was under the wipers. Cowel area, they didn't finish caulking at the factory. New information on the hesitation problem. Possible solution. There is a problem with the exhaust valve springs, causing a sticking valve. They need to replace the springs and seals. Part number WPC281.(Warranty Parts Center) The kit works for 4cyl and 5cyl. With the 4cyl you will have 2 springs and seals left. Everyone who has had this done, no longer has a hesitation, cut out problem. I've contacted the dealer on mine, and they are checking on it. Also- for those that are having tire wear problems, GM has the wrong trim settings on the front end. They will need to adjust the front toe setting. The vibration seems to be coming from General Tires, GM engineers are working on this problem. Other truck owners who put on better grade tires, claim a vibration free ride. The heat shield on the exhaust is another point of vibration, and noise. For your safety have your seat belts checked, mine had a broken bolt at the factory, discovered by the dealer. I was lucky. I've seen information on a government site, another individual wasn't so lucky. I hope this information helps. My dealer has been very helpful in resolving all of these issues.
#334 of 1033 Re: Engine Noise Question... [mikefromaz] by bigred54 Nov 29, 2004 (8:28 pm)
Replying to: mikefromaz (Nov 21, 2004 8:12 am) Noise was described in past posting as relating to the AC and fan. See old posting. No fix exist just poor design of the AC/air circulation system.
#335 of 1033 Considering the Colorado by islandcorner Dec 04, 2004 (8:42 pm)
Thank you everyone for all of your input. I have been considering on buying a new truck for the last 6 months. I currently own a 2000 Silverado 1500 LS and want to downgrade to a smaller truck ever since the gas price sky-rocketing. I thought that the Colorado is a good choice because it has good mileage, looks like a marathoner, it can fit in my 20'x20' garage and many of the parking stalls in Hawaii, unlike my Silverado. I'm not overly concern about the towing capacity since I don't think I'll be towing a boat. Maybe two ATV's at the most. Besides, I can gain more horsepower and torque by changing the exhaust to a high flow exhaust if need be. I'm also not a heavy-footed driver so I don't expect to be changing speed a lot and being that my commute is mostly highways, I will hopefully take advantage of the gas saving features of variable valve timing. Oh yeah, the Tacoma '05 will start to get that this coming release. One reason to make it my second choice. I scuba dive and surf, so the only time I will be using the 4WD capability is to access remote off the road surf spots and dive spots.   I've been reading this forum since its beginning in 2002. I just hope that the problems thats been described here have been fixed in the 2005 Models.   I have put in my order for a Colorado '05 CrewCab Z71 4x4 LS 1SE package with 4.1 Axle ratio(compensate for the lower torque), Sunroof, with wheel flares, bodyside moulding, tailgate edge protector, and rear sliding window. Out the door for $27,300(tax, title, license included) plus any discount applicable. I think GM is offering $2k cash back at this time. Hopefully more when the truck arrives. Price is set as long as material cost does not change. So I am praying that it remains the same.   Just incase we have cynical critics here, I will explain why you might wonder why I choosed the higher axle ratio when my point is to save gas. First, because of the low torque, with a higher axle ratio, I'll gain more torque than the 3.75 axle ratio. Publications are based on the smaller ratio. Second, since Hawaii mostly has a max speed limit of 55MPH (only one place has the 60 MPH limit), I don't think I have to worry much about engines working more at higher speeds. Third, to further compensate for the gas mileage lost and boost horsepower, for choosing the higher axle ratio, I plan to add a tonneau cover to reduce drag, change the exchaust to a more freeflowing type to increase horsepower, and change the air intake to a higher capacity for better fuel/air mixing, therefore improving gas mileage. I've done the same and a little more (tinkering with pcm) with the Silverado which has a mileage of 18mpg city/20mpg highway and an increase of 30 horsepower(dyno tested), better than the stock.   I have test drived the Canyon, Colorado, and Tacoma '05. The Canyon is over priced with the salesmanager unwilling to reduce the $8k markup over my quoted price of $27,300 for the same vehicle with less options. That basically turned me off on GMCs. As for the Tacoma, unlike the mainland, Toyota cannot be customed ordered because of the monopoly Servco has on the islands. So, you buy what they order. Forcing me to go with the Colorado unless...   However, after reading all the postings and taking notes, I will make sure to look for the following during the delivery test drive: 1) Interior wetting/leak due to unfinished sealing of wiper cowels and body seems. 2) Leaking shocks. 3) Fuel gauge misreporting due to malfunctioning fuel sensor. 4) Make sure to check all seat belt bolts are secured. 5) Vibration at 45 to 55MPH, possibly due to tires, engine, driveline, and/or heat shields(frequency resonation). 6) High pitch whining from the exhaust(fixable using WPC281 due to sticking exhaust valves). 7) Bee-hive like sound coming from the AC. 8) Wind noise from seals 9) Ac does not get cold fast or stays in moderate cool temperature on high setting. 10) And the usual, unmatching body panels, paint chips, runs, bubbles, loose or loose fitting parts, etc...   And if and when I do take the truck home, I'll look for irregular tire wear problems which might be caused by incorrect trim settings. Now if I do find these problem(s) and the dealership is not cooperating to fix it before delivery, then I will request my deposit due to a breach of contract and instead buy my second choice, Toyota Tacoma'05, of course without the options that I want. Gotta live with it if I want a truck that at least work. I'll make sure to post back here when that time comes up and let everyone know. Oh, and if I forgot something in the list, please add to it, so it can help others like me with the decision of buying a Colorado/Canyon. Replies to this message: ocmike3 (Dec 05, 2004 2:23 pm) panther8 (Dec 06, 2004 6:58 am) islandcorner (Feb 16, 2005 9:15 pm)
#336 of 1033 Re: Considering the Colorado [islandcorner] by ocmike3 Dec 05, 2004 (2:23 pm)
Replying to: islandcorner (Dec 04, 2004 8:42 pm) I hope you (if do get one) have as good a luck with your Colorado as I've had with my Canyon.(4WD,crew,Z71,SLE... basically loaded.) I've got 15k miles and have had no real issues. My only two gripes are the outside thermometer that doesn't adjust for 15-20 minutes on hot days and the sometimes anemic A/C. Other than that its been 15K trouble free miles in the Pacific NW. As for the tonneau - it will probably not help mileage. Trucks are designed so that there is an area of low pressure that forms behind the cab/over the box. My mileage didn't change when I added my hard cover(not a canopy).   Good luck and let us know how this turns out. Replies to this message: panther8 (Dec 06, 2004 6:58 am)

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