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I have a 2005 chevy trailblazer and the fuse pcm 28 keeps blowing, what might be the reason of this? Or what can I do to fix it?

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SOURCE: fuse for fuel pump on a 2005 chevrolet equinox

no could b a bad relay or the connection at the fuel pump r other if u have to volt meter /ohms meter check relay to see if good

Posted on Sep 24, 2009

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SOURCE: 2005 chevy trailblazer, fan switch wont work on all speeds

Had the same problem on my 2005 trailblazer I replaced the resister and wire harness because wire harness was burnt on a few connections. Cost was 75 bucks for both parts at Napa auto parts works fine now

Posted on Nov 23, 2009

DrSpeedo
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SOURCE: 2005 Trailblazer Ext: how doi fix a gas gauge on my chevy trailblazer 20...

Common problem on the 03-06 Trailblazer instrument clusters for the fuel gauge to go out. It's usually caused by one of two main problems, either the stepper motor on the cluster's circuit board is going out or the sending unit on the fuel pump is going out. Check out this blog post about the problem - Trailblazer fuel gauge problems

Posted on Sep 30, 2010

BCAS1298
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SOURCE: what is the pcm in a 2004 chevy trailblazer? and

PCM is what control's all of your engine sensor's, there's no repair for the PCM, but to replace.

Posted on Nov 09, 2010

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Fuse box diagram 2005 trailblazer


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I disconnected the battery, removed fuses 10 and 28 adjacent the battery and waited twenty minutes. I then hooked the battery back up reinstalled the fuses and started the vehicle. The battery light went out and the battery not charging message did not come back on. I then went for a test drive. I had a celebratory adult beverage because it worked.

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2005 chevy trailblazer was jump started and now all interior electricals from lights to windows to door locks are gone. Any ideas beyond fuses as I checked all of those mini fuses


This is a fairly common problem on Trailblazers. What happens most often is, when jump started, instead of connecting the jumper cables to the battery, they get connected to the studs on the main fuse box under the hood. When this happens, it blows the megafuse in the fuse box.
The megafuse feeds electrical current to most of the circuits in the rear fuse box. If that megafuse is blown, it will have to be replaced, and this should fix your problem. Here is a picture I found on the 'net of the megafuse:
10act_0.jpg

Hope this helps!!

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1 Answer

2003 trailblazer keeps blowing pcm fuse. wont start, key stuck in on position.


YOU HAVE MANY THINGS THAT CAN BLOW THE PCM FUSE.STARTER RELAY,ALTERNATOR, PARK NEUTRAL SAFETY SWITCH, FUEL PUMP, AND THE PCM CAN BE SHORTING OUT.

May 01, 2011 | 2004 Chevrolet TrailBlazer

2 Answers

What is the pcm in a 2004 chevy trailblazer? and how I can fix it.


PCM is what control's all of your engine sensor's, there's no repair for the PCM, but to replace.

Nov 09, 2010 | 2004 Chevrolet TrailBlazer

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2004 chevy trailblazer fuse box diagrams


I have front and rear a/c. The air is blowing in the back but not in the front. Don I have 2 blowers/units. Could this be a fuse?

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02 Chevy Trailblazer: Fuse # 47 keeps blowing. When it does, the key cannot be removed and the transmission is sluggish in 1st gear. I am replacing fuses daily. Any thoughts on a fix? Is it the...


there is a short circuit in the system, check for a broken wire, also check the fuse and relay, make sure use use the wright fuse type an number.

Jul 31, 2009 | 2002 Chevrolet TrailBlazer

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2005 chevy trailblazer, fan switch wont work on all speeds


Had the same problem on my 2005 trailblazer I replaced the resister and wire harness because wire harness was burnt on a few connections. Cost was 75 bucks for both parts at Napa auto parts works fine now

May 23, 2009 | 2005 Chevrolet Trailblazer Ext

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