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Pickups Chevrolet Colorado and GMC Canyon Chevy Colorado and GMC Canyon Electrical Problems
248 messages, Last post on Nov 17, 2009 at 4:12 PM
You are in the Chevrolet Colorado and GMC Canyon Forum. Your Host is kcram
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Replying to: brokenall (Jun 13, 2008 3:47 pm) |
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Replying to: Alennx (Mar 08, 2009 9:25 pm) I rented a Trailblazer for a week while out of State, same kit setup with phone, radio and batteries charging from my inverter, this vehicle is pretty much the same as the Colorado but has a voltmeter in it showing 14V at idle in the rental place. So I'm watching this thing and by day three, the engine is starting to idle up and down and the voltmeter is showing about 12V at idle, but no engine light yet... which means all my kit is drawing more wattage than the alternator is making at idle and the battery is now sweating the load... so I quit plugging in my laptop during idle and, 24 hours later, idle is normal. I get home and back in my Colorado, which still has the engine light on and idles between 500 and 700 every two seconds all day. I plug everything but my laptop in and a couple of days later, the idle levels out at 700 and the light goes out! That was several days ago. The engine light came back on briefly the other night when I was idling with my headlights on for two hours, but then went out on the way home. My belt is squeeling when it gets wet. I think this means I need a new belt? Or it means the alternator is so fried it's creating too much friction... Either way, if I want to power my laptop in my truck for more than ten minutes, I have to get a much bigger alternator installed. One that will output 100A+ at idle. On another note, I pulled the resistor pack for the blower in the passenger footwell and, wouldn't you know it, the connector on the red wire is all burned and melted. I think there's a Technical Oops Sheet on that so I might find a Chevy dealer who will fix it. JFYI, with the resistor pack disconnected, the blower still works on 4 and the heater, inside/outside button and A/C all work fine. My 2005 Colorado just turned 80K and now runs like a dream again. 
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My 2004 Canyon (3.5L 5MT 2WD) has had a continuing series of small electrical problems since new. These have included no start, blower motor, blower resistor, blower loom (2X), & intermittent rough idle. The truck now has 111,000 miles and finally runs right. The fix was simple, just put a real battery in it. My OEM style group 86-7YR battery died at the bottom of a wilderness lake boat ramp. I had to remove the upper & lower portions of the battery box to fit an old deep cycle battery from my boat to get back out of the mountains. I chose to eliminate the battery box & vent hose and select a larger & stronger battery more suited for truck use. I installed a Costco/Kirkland #4 battery which is rated  1,000CA & 850CCA. This battery also has a 36Mo/100Mo warrantee & only costs $80.00. The battery is snug but fits into the available space, cables, and the stock battery retainer system. The bottom line is that EVERYTHING works better especially the engine which has never run this sweet. I suspect the combination of a minimal battery and a low capacity alternator result in excessive voltage drop and thus high amperage draws everywhere. My next step will be an alternator upgrade. This is a cheap way to stop buying electric parts. I also expect to see an improvement mileage & may get to 30mpg yet! Russ |
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Hi, On the previous post (#216) I neglected to provide the actual battery identification. It is a 850CCA, GROUP65, Costco item #12866, $80.00, & also called a fitment #4. The width is a really tight fit in the stock retainers & I'm not sure that other brands of group 65 batteries will fit the same. Also late models of Canyon & Colorado both 4 & 5 Cyl have upgraded from 100A to 125A alternators which will probably be an easy & worthwhile conversion on the older trucks. Russ
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I have a 2004 chevy colorado extended cab and lately my drivers side window has been acting funny, sometimes working just fine and sometimes it just stops for a bout 15 seconds, then will start working just fine again. the locks work, and the mirrors work. and then yesterday i got in my truck, put both windows down, and drove about 5 miles. when i parked and tried to put the passenger side window up it didn't budge and so i waited hoping it was just the same problem as the drivers side window but nope... it wouldn't move. so i had someone pull up on it while i pressed the button and it went up just fine, then it worked fine for about 5 minutes then got stuck again. i don't know what is going on. but this morning it worked fine again for a couple seconds then just froze up again. i can hear it click on the passenger side door like it receiving the power its just not moving. ive been reading a lot of posts with people having electrical problems, i don't know if i should hope its electrical or the motors are going out. i don't know which is cheaper. any response is welcome.
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Replying to: merch3 (Jun 10, 2009 5:08 pm) |
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Replying to: cyre (Dec 30, 2007 8:26 am) |
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Just found this after having issues with my 04 Colorado for a number of years. First incident was this: after shopping came out to my trucks wipers going and when I unlocked the door, the blower was on inside. This while the keys were in my pocket. Dealer replaced the BCM. Under warranty. Fine for 30,000 miles. Next problem: Go out to the truck, nothing works. Try to start, only thing that came on was the service engine icon on the instrument cluster. Nothing else. Dealer replaced the BCM again. $700 bucks gone. 3 weeks later, Driving the truck, filled up gas. Blower on while the keys in my pocket. While driving the truck to the dealer, the wipers turn on then stop mid way, the horn honks twice, the instrument cluster goes completely black then displays the odometer reading as 999999. Blower does not work, locks work, but when you shift out of park or drive it used to lock and unlock the doors, it does not do that anymore. Replaced the BCM again. They are going to replace the instrument cluster once they get it in. So far the dealers techs are dumbfounded on how this is going. Any other ideas? I am going to ask them to look at the fuse block. Just seems to be a lot of electrical issues with this thing. |
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OK, so I bought a loaded 2004 4x4 crew cab colorado z-71 for my daughter, past owner told me had just put in a new battery, after one month all of the problems listed in this post with the exception of the blower began happening to her truck. So, I began to disconnect and reconnect every harness connector to try and trouble shoot this issue. FINALLY, last night as the no start no power no dash passlock battery good condition occurred once again my neighbor watched the dash while I wiggled wires yet again. and fixed it!!!!!!!!. From the battery trace the small ground wire to the inner fender, remove the bolt, remove the small retainer that holds the eye on the bolt. remove the eye connector, place a "star" washer on the bolt, reinstall the eye, place another star washer on the bolt and reinstall. Problem is resolved. no issues, door locks, lights, dash, pass lock all ok now 
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| I have a 2004 Ext. cab 4 wheel drive I5 Chevy truck and the problem I have is my check engine light has come on and will not go off even when you take the key out of the ign. The Chevrolet dealer checked for a code but there is none. HELP!!! | |
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