Last post on Sep 08, 2013 at 8:24 AM
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Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, Electrical, SUV
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#108 of 292 Re: please help, going krazy [lyferik]
Dec 11, 2009 (4:11 pm)
Your not alone! My wife just called me tonight while out and told me her Tach reads 7000 rpm and the oil pressure gauge reads like over 90psi. Two years or more ago the speedometer quit, and about ayear ago the fuel gauge quit! I tried countlessly to get GM to cover the speedo and they would not! So why bother repairing all this electrical if its all going to crap out like its doin. Iv been workin on my own vehicles all my life and this 2004 trailblazer is one of the worst cars i have ever driven, and have had the most electrical problems ever. When does it end! Oh yea three months ago my wifes brakes started to fade on her. After doing some investigating i found the antilock module seems to let brake fluid bleed bye therefor causing the brake pedal to fade while applying the brakes. Also had no warning light to let me know of any trouble with thw ABS system. Now i drive the car with the power disconnected to the abs system and the brakes work like preantilock systems did LOL! I never started to chase and try and fix these problem because in the end they do not affect the cars performance. I will however NEVER buy another small GM vehicle again. I own a 99 suburban with 199875 miles on it and have only done mainteance work on it. My next small vehicle will be a honda for sure, or atleast something foreign. Me being a union electrician, never thought i'd say that, but chevy has a long way to go with some of their products. If you can't tell i'm not to happy with the trailblazer. LOL ! I It is dependable but electrically leavs alot to be desired. Good luck with your quest. Let me know what you think.
#109 of 292 Re: please help, going krazy [84formula]
Dec 11, 2009 (6:31 pm)
thank you for all the info on the other issues you are having and have had...but so far my truck is over 135k and that seems to be the only issue....the tach intermitintly going dead...so...ill keep my fingers crossed and hope that nothing else goes weird on her...but less than 2 weeks ago i finally changed the factory brake pads and still had about 20 to 25 percent left. my kids love the space and its been a reliable cross country road tripping vehicle. sorry u had these elec. issues.
#110 of 292 '04 Trailblazer electrical problem
Dec 12, 2009 (6:00 am)
I have an 04 Trailblazer that has an electrical problem. Every so often when you get in and put the key in the ignition the vehicle is completely dead. No lights, nothing. You cant even get the key back out of the ignition. I replaced the battery 2 weeks ago and it did it again yesterday. As soon as I hook jumper cables up, all the power comes back up and the vehicle starts fine and may not repeat the problem for a week or so. I had the starter and alternator checked and they showed ok. Any suggestions?
Dec 21, 2009 (8:16 pm)
I also have a trailblazer with every electrical problem mentioned here. I have 43,000 miles and at this point, I will never buy another GM product. I purchased this new in 07, being a woman, I got screwed from the beginning. No new warranty and the extended warranty sold to me was worthless. Everything from sensors to battery going dead for no reason has happened. Now my oil pressure gauge is all the way to the right, oil is fine. I took it to a dealership and was told about 600.00 for repairs. Luckily a friend of mine took pity on me and found out it is the oil sending unit that has gone bad. $33.00 for the part and about 2 hours of labor. I also have had every gauge in the dash quit at one time. I have replaced the battery 2 times and every other week the service 4 wheel drive light comes on for a day or so.
#112 of 292 Re: '04 Trailblazer electrical problem [knickles]
Dec 21, 2009 (8:19 pm)
Mine done the same thing, a friend of mine replaced a sensor and it hasn't done that sense.
#113 of 292 Re: 02 Trailblazer electrical/starter problems [lpradetto]
Dec 23, 2009 (11:03 am)
i have a 04 chevy which has been nothing but problems i swear the car is posessed. i get in after the car sits all night and it wont start so after 10 tries it starts right up. i thought it was the started after almost a and lots of visits to the car repair place chevy yesterday finally let me know that this is a common problem and its the ignition switch and i was happy until im told that this is on back order nationwide thats right nationwide so yes im on a waiting list for this part who knows when this will be available finally the truth how this switch turns the lights on and off in the car and dashboard also stop the car mid way while turning then you have to shut the car off and back on to get to go....but that not even half of what i went through with this truck ...i cant understand if a part is on backorder nationwide why not put a recall on this part its obviously a problem in 98% of the trucks!!!! yea but who am i lol
#114 of 292 Electrical Problems 05 Trailblazer
Dec 27, 2009 (7:42 am)
I am having several problems with our 2005 Chevy Trailblazer, can someone help?...It started with headlights dimming at night, then when you start the car the powered locks go crazy clicking for about 8-10 seconds, after filling the vehicle up with gas the gas gauge went to empty and finally would not go into 4 wheel drive. My husband took the vehicle to Autozone to have them test the battery & alternator, which both tested good. Anyone have any suggestions?...Also wanted to add the car starts fine.
#115 of 292 Re: '04 Trailblazer electrical problem [knickles]
Jan 26, 2010 (1:00 pm)
I also have an 04 Trailblazer that I got used last year 09. It had only 21000 miles and I have the exact same problem as you. The vehicle is completely dead, but when I hook up cables it starts right up. Battery is now new and vehicle checks out okay. Did you ever find out what the problem was. I am totally confused. Any help would be greatly appreciated. Thanks
#116 of 292 Re: '04 Trailblazer electrical problem [misslanak]
Jan 26, 2010 (1:04 pm)
I have the same problem as [knickles], what sensor did your friend replace. i am at a loss.
#117 of 292 key stuck in ignition
Jan 27, 2010 (7:45 am)
I have a 2004 trailblazer and first thing that happened was while making a left turn a few days ago my car completely shut off. Started back up again fine, a few days later and I cannot get my key out of the accessory mode position to take key out of ignition. Any ideas?