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Chevrolet Colorado
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http://www.thecarconnection.com/Auto_News/Daily_Edition/Daily_Edition_Jun_20_200- - 6.S173.A10555.html
"HUMMER, Colorado/Canyon Bump Up, Too
The 2007 editions of the Chevrolet Colorado, GMC Canyon and HUMMER H3 will benefit from boosts to the displacement of their engines. The base engine in the pickup trucks is now a 2.9-liter four, up a tenth of a liter and producing six percent more power than the previous edition. The H3 and four-wheel-drive, crew-cab versions of the trucks add a 3.7-liter in-line five upsized from the prior 3.5-liter version. Power output on the 3.7-liter engine is 242 hp and 242 lb-ft of torque, an increase of 22 hp and 17 lb-ft. The larger engine is also available optionally on other pickup body styles. "
The good news is that the truck now handles and rides quite well. The bad news is that it was $$ out of my pocket. Now, if I could just get rid of the wind noise in the cab, I'd be really satisfied with the truck.
GM Press Release - 2.9 I4 and 3.7 I5
kcram - Pickups Host
It's just a "buffeting" sort of noise, right around the rear window/"B" pillar...regular cab. It's certainly not deafening but is annoying.
:lemon: :confuse:
Thanks
Debbie
As has been mentioned in the past, there have been cab/bed alignment issues mentioned. What I think I'll do next is check to see if the cab is "square" to the chassis, adjusting if necessary. Then, if any adjusments need to be done to the cab, I'll readjust the bed as needed.
I've added some of the self adhesive, sound deadening material sheets made by Cascade Audio Engineering, to the back and roof of the cab. That helped a lot.
Just as a side note, the OE General tires that came with my Canyon are worse than the "S" word. I have a Z-71 SLE, so I had the 265/75-15s. The second day I had the truck, it was on my trusted friend's alignment rack, as I thought there must have been something wrong with the truck. It was ALL OVER the road! The alignment, however, was OK.
Since this is primarily a winter vehicle for me, I had 4 Bridgestone snow tires on it a few days later... MUCH better, and snow tires aren't known for "handling".
You're VERY lucky it was a rear wheel instead of the front!
Yesterday my boyfriend and I are driving on the 407 doing 110km and we start swerving through all lanes of traffic then we hear a big bang and the truck drops. My speedometer is going up and down like crazy and I can't steer or brake! We drifted off the road and onto the left shoulder. I got out and look at the rear end of my truck, to my surprise.... my tire was GONE. all I saw was what was left of my breaks and there was brake fluid spewing out everywhere. The 407 patroller found my tire 500m away and the wheel lugs were still in the cover that goes on the front. SO, John Logan is now dead for their crappy service that they did on my truck that almost killed me.
As for the Service Bulletin #04-06-04-081C Exhaust Valve Springs, they said it only applies to the I4 engine not the I5. Can someone concur with that SB?
I hope this info can help out with anybody else experiencing this buzzing, vibration problem.
I will never buy another GM product.
I will never buy another GM product.
===================
brake light switch is a heck of a good reason for never buying a GM vehicle. Go buy a Toyota. Make that a Prius so you can pay out $5000 for a new video screen after warranty. Park it on a steep hill and it shuts down to be towed, spin the wheels in the snow and it again shuts down for a trip to the dealer. Try backing it up a hilly driveway. Can't be done. Buy one so I can see what you have to say about them. :P
Has anyone else had or got this problem? If so please contact me as to how you fixed it. The problem is driving me nuts.
Has anybody installed a proper hand brake on one of these trucks. If so how did you go about it. The foot brake makes for interesting towing techniques.
Thanks, RG
The DSR has experienced all the symptoms and is still wandering around like a lost fart looking for a vehicle like mine to compare. You would think with the VIN number they would be able to find one. They found five in the states but couldnt access them. Why? The DSR was on vacation and his deputy was too busy and mine was not a critical problem. To who?? I know at least two others were sold in our area, south western Ontario, at about the same time as mine, one at the same dealer was delivered a month earlier and the one I tested before I ordered mine. Now they say that until they can find another one doing the same they won't do anything about it. Last GM I buy if this is their "modern attitude".
RG
But I would not use that as my only excuse not to buy chevy again! I am an ASE certified master mechanic I work on all makes and trust me I see the other problems the other makes have, this is why I will only drive GM makes, trust me on this :shades:
Anybody have any additional info on this??
Thanks!
It took forever for them to figure it out because no one had ever had one go bad. So watch your tach needle to see ifit fluctuates wildly.
In frustration something made me turn on the ignition but not start the truck. I then pressed the accelerator "to the floor" three times rapidly and something, I assume the PCM let out, via the radio, three or four "beeps". The next time I drove the truck it seemed better. The hesitation is still there but not nearly as pronounced. It also seems to have more "guts".
What I did I have no idea but a mechanic relative says he thinks I "reset" the relationship between the throttle position sensor and the computer. The "backfire" is still there when starting hot but as TECH said maybe it's just a little unburned fuel from the shut down. Try it and let me know. Maybe I'll prove to GM yet that they don't have a clue what they are building anymore.
As to mike's suggestion about the tach, no, mine is rock steady. 1RG