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Chevrolet TrailBlazer Electrical Problems

104 messages,  Last post on Nov 12, 2009 at 1:36 PM

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What is this discussion about? Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, Electrical, SUV

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#64 of 104 Re: 01 Trailblazer Electrical/Turn Signal Problems [jrcrane] by ticadoo Feb 02, 2009 (6:37 am)
Replying to: jrcrane (Jan 31, 2009 11:59 am) Sometimes by left turnsignal will go crazy, sounds like it is getting ready to blow up. When it does this, the actual signal does not work. I have found that it happens when the bulb gets wet or is lose. These trucks need to have major work done to them. What a disapointment!!
#65 of 104 Re: Chime Indicators and Driver Side Speaker [trailblazer1] by trailblazer02 Feb 08, 2009 (10:55 am)
Replying to: trailblazer1 (Dec 02, 2008 12:43 pm) I have the same problem with my LH Driver speaker not working. The chimes go through that same speaker so that's why you do not hear them. If you hold down the sixth preset station button with the radio off, you can set you chimes on loud.   Once you do this and adjust the sound all the way over to the left, you'll should here a faint chiming when, for instance, you leave the keys in the ignition with the door open. So the chimes do work.   I am guessing mine is a bad speaker connection or blow speaker?
#66 of 104 Passenger side power by poppy12 Feb 09, 2009 (4:27 pm)
Ok, i need HELP! The passenger side of my 2002 Chevy Trailblazer does not work! The power window, door locks and interior light does not work, but only on the passenger side. Also the "service engine light" has recently came on and stays on constantly. I thought maybe I had a blown fuse so I stopped by one of the many auto parts store here in Tupelo and was going to have a diagnostics ran on it by hooking it up to the computer under the dash drivers side. However, the diagnostic machine would not read anything! The tech at the parts store told me I had a blown fuse, thats why my passenger side dosen't work and that same fuse powers the computer. Is that true? Whats the deal? Can u please help me? Replies to this message: ticadoo (Feb 10, 2009 5:34 am) burdawg (Feb 11, 2009 6:43 am)
#67 of 104 Re: Passenger side power [poppy12] by ticadoo Feb 10, 2009 (5:34 am)
Replying to: poppy12 (Feb 09, 2009 4:27 pm) All I can say is good luck. I've had my 03 Trailblazer at so many shops I have lost count. Nobody can fix the electrical problems; nobody can tell me why the "service engine" light is on.
#68 of 104 Re: Passenger side power [poppy12] by burdawg Feb 11, 2009 (6:43 am)
Replying to: poppy12 (Feb 09, 2009 4:27 pm) No it's not true. For the problem you describe I would look for a loose or faulty connector in the wiring harness that connects the passenger side systems to the main harness. For the check engine light, the first place to look is always at the fuel cap. Is it on straight? Is it snugged down? Does the rubber seal in the cap have cracks in it like ours did? I wiped a little thick grease on the rubber seal on the cap and put it back on and the check engine light went away in a couple of days. Replaced the cap and no more problems.
#69 of 104 Re: Headlights and Dash lights [blondiebaby23] by gianni2 Feb 13, 2009 (8:47 am)
Replying to: blondiebaby23 (Feb 01, 2008 7:00 pm) I am experiencing same problem. My headlights are flickering,dash lights will dim down at same time,also note the gauge to drop below 14 for several seconds. I have replaced the battery and alternator. Any suggestions? Replies to this message: rpowers (Feb 16, 2009 6:17 pm) sharv10 (Feb 17, 2009 7:21 am) mrfryan (Apr 03, 2009 11:33 am)
#70 of 104 2005 trailblazer,headlights flicker,dash lights dim by gianni2 Feb 13, 2009 (9:21 am)
I have been noticing my headlights flickering & at the same time dash lights will dim,also notice the gauge will drop will 14 for the duration. This will usually last several seconds. Sometimes it will only occur once or twice and other times it will persist for the entire ride. I tried going to dealer for computer diagnostic,nothing showed up. I have replaced battery & alternator. Any other suggestions?
#71 of 104 Re: Headlights and Dash lights [gianni2] by rpowers Feb 16, 2009 (6:17 pm)
Replying to: gianni2 (Feb 13, 2009 8:47 am) I have the same symptoms on my "05" - it just started this week and I have no idea what it could be? All of us that have these light problems should bring this to the department of transportation - consumers groups - and GM = this is very unsafe and should not be affected by an out-of-warranty situation --- this is UNSAFE and should be a recall to repar no matter what mileage!! Replies to this message: sharv10 (Feb 17, 2009 7:21 am) mrfryan (Apr 03, 2009 11:33 am)
#72 of 104 Re: Headlights and Dash lights [rpowers] by sharv10 Feb 17, 2009 (7:21 am)
Replying to: rpowers (Feb 16, 2009 6:17 pm) I have the same problem with my 05 Trailblazer. It only happens in cool damp temps and I have found that as long as I let the truck warm up for a few minutes it does not do it while driving. I had it to the dealership a couple times but they had no answers as it would not do it for them. I had it to my local mechanic and he thinks it is an issue with the voltage regulator sticking. I agree that is should be a warranty issue.   I also have trouble with my speedometer not working after a few minutes of driving. Have not gotten too many answers on that one either.   Replies to this message: mrfryan (Apr 03, 2009 11:33 am)
#73 of 104 bigfig by bigfig Feb 26, 2009 (7:26 pm)
I added windshield fluid and when using the rear wiper there is no fluid coming on the rear glass but inside. How do you remove the rear panel to unclog the hose since fluid is coming out but not on the glass and the wiper is working?

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