Chevrolet plans to quietly fix a mistake it made in the mid-size Colorado and Canyon. - Chevy Colorado & GMC Canyon
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post #1 of 21 (permalink) Old 03-03-2015, 12:24 PM Thread Starter
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Chevrolet plans to quietly fix a mistake it made in the mid-size Colorado and Canyon.



Chevrolet plans to quietly fix a mistake it made in the mid-size Colorado and Canyon.


General Motors advertises that models equipped with the 3.6-liter direct injection V6 make 305 hp at 6,800 RPM, but the tachometer those trucks are equipped with shows a redline at 6,500 RPM. James Bearing sent an e-mail to several automotive outlets after noticing that the Colorado he recently bought seemed to advertise the ability to make more power than it actually does. In the message, he said Chevrolet hadn’t responded to his inquiries.

Today General Motors truck spokesman Tom Wilkinson said in an e-mail that “the graphics on the cluster of the trucks are slightly off. The redline is 6800, which is where the rev limiter is set. We are updating the graphics on future trucks.”

Wilkinson also included a copy of the power curves from the SAE certification that the Colorado underwent, but didn’t say exactly when GM will implement the correction.

Read More: Colorado, Canyon to get Updated Tachometers » AutoGuide.com News
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post #2 of 21 (permalink) Old 03-10-2015, 09:25 AM
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mine reads 6500 lol, wonder if theyll be replacing gauges

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post #3 of 21 (permalink) Old 03-21-2015, 11:02 AM
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Buyers beware,

If you are looking for the trailer towing wiring harness with GM part number 23455107 beware. Many online are trying to past a custom fit wiring sometimes showing the correct picture, but will mail you a generic trailer wiring harness that requires splicing. Even my local GM dealer where I bought my truck pulled that on me.
Does anyone know where I can buy the Genuine GM trailer hitch wiring with GM part number 23455107?

Below is a picture of the correct and a link showing the generic one.

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File Type: jpg Blown pic of correct part.jpg (33.2 KB, 82 views)
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post #4 of 21 (permalink) Old 03-31-2015, 08:32 PM
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Haha, I forgot about this until now. This morning, I was alarmed when I had my foot to the floor to merge into 4-lane highway traffic, and it didn't shift until it went past the redline at 6500 RPM. Now I feel a bit better. That 3.6 snarls like a boss when flogged!
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post #5 of 21 (permalink) Old 04-17-2015, 06:58 PM
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Well that is JACKED up! I hope the 2015 I have on order comes with the correct speedo, or they will be changing it, ...just what I want, my dash ripped apart on my new truck.
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post #6 of 21 (permalink) Old 04-18-2015, 09:34 AM
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Well that is JACKED up! I hope the 2015 I have on order comes with the correct speedo, or they will be changing it, ...just what I want, my dash ripped apart on my new truck.
Get a red permanent marker and correct the redline.

I don't see where this is a big issue at all. No way is someone tearing my dash apart for this correction. Sure, if the dash has to be torn into for some other issue and they want to replace it at same time, no sweat. Why ask for rattles?
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post #7 of 21 (permalink) Old 04-18-2015, 10:27 PM
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^^^^
I totaly agree, it's not likely I'd ever use my tach to monitor pit road speed in a NASCAR event!

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post #8 of 21 (permalink) Old 04-25-2015, 06:18 PM
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I don't see the need to tear into the dash for the new graphics.... Mine probably will not be seeing the redline much anyway.... LOL

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post #9 of 21 (permalink) Old 04-27-2015, 06:09 PM
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Yeah..who cares what the numbers on the dash say
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post #10 of 21 (permalink) Old 04-28-2015, 05:33 PM
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It has a rev limiter, so I'm not worried about the graphics.

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post #11 of 21 (permalink) Old 05-17-2015, 11:41 AM
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I've been driving mine for a few days and haven't even looked at the tach once.
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post #12 of 21 (permalink) Old 05-18-2015, 12:13 PM
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My truck was built on 5/15 and the tach is correct.

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post #13 of 21 (permalink) Old 05-29-2015, 10:50 PM
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My truck was built on 5/15 and the tach is correct.
Can you take a picture of the gauges? I'll have my truck next week, but it's not a V6. I'm curious to see where they put the new redline, and if they made the gauges on the I4 match.
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post #14 of 21 (permalink) Old 05-29-2015, 11:06 PM
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In the SAE dyno graph, the testers ran that engine up to around 7100-7150 (after HP peak) I wonder at what RPM the valves actually float?

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post #15 of 21 (permalink) Old 05-29-2015, 11:24 PM
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Don't make a bit of differance to me. If my truck hits that high of RPM, somethings wrong. lol
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post #16 of 21 (permalink) Old 06-18-2015, 11:42 PM
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Oddly enough, it seems the new tachometer will show no redline. All 8000rpm tach with zero red. Both engines should be just fine to 7000rpm, as that's what they do in other applications.
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post #17 of 21 (permalink) Old 06-18-2015, 11:51 PM
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Quote:
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In the SAE dyno graph, the testers ran that engine up to around 7100-7150 (after HP peak) I wonder at what RPM the valves actually float?
Or sink thru a piston !!! LOL

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post #18 of 21 (permalink) Old 07-09-2015, 08:34 AM
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Mine was built at the end of April and still has the 6500 RPM redline, which does not bother me in the least. What does bother me? The 140 MPH speedo in a vehicle with a 98 MPH factory governor! Reminds me of my '78 Subaru which had a 160 MPH speedo even though the car could only go 87 MPH with the engine past redline in 4th gear.
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post #19 of 21 (permalink) Old 07-28-2015, 01:15 AM
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Originally Posted by steamloco76 View Post
Mine was built at the end of April and still has the 6500 RPM redline, which does not bother me in the least. What does bother me? The 140 MPH speedo in a vehicle with a 98 MPH factory governor! Reminds me of my '78 Subaru which had a 160 MPH speedo even though the car could only go 87 MPH with the engine past redline in 4th gear.
Maybe it's a courtesy for the guys who are going to heavily modify their trucks?

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post #20 of 21 (permalink) Old 08-06-2015, 11:33 PM
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My May build is at 6500, will I ever get there, who knows. As far as the 98MPH thing goes, I haven't tried that either. I took a 2011 Nissan Titan to 115 MPH, and I swore I would NEVER EVER do that again in a pickup truck. You could just feel that if something were to happen it's the end, and it was only for a few seconds. Trucks are trucks, Porsche's are well...
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