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3449 messages, Last post on Nov 07, 2009 at 8:55 AM
You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester
| i got a 95 blazer 4.3, problem is can run great then when u try to start it , it wont fire. has fuel, and spark, no ttouble codes , had to dissconnect battery or wait, then it starts right up. had it checked by Gm, cant find a problem, replaced computer still the same, any ideas? : | |
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I've got a '96 Blazer 4x4, 4.3L, V-6, LS. Bought it used in '98, had 35K miles on it, and it's been pretty good to me, but it's now got a little over 100K on it, and the problems have started. Here's my problem: Every time I start the engine, the #4 fuse (gauges) blows out, the daytime running lights go out, the dash lights go out, and it drains the battery right down in no time. Put a new alternator in today, new spark plugs, plug wires, distributor cap and rotor, oil filter and oil changed. Apparently, none of those things helped at all, and it looks like it's an electrical problem, but I have absolutely NO idea of where to look for a short or wire damage first. Electrical is not our strong suit, but pretty handy with most other things and a quick learner. Has anyone else had a similar problem or heard of anything like this? I would appreciate any help, because we're both stumped here and are running low on spare fuses. Please, please help! 
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Thanks for all the help, guys, but we managed to find the problem on our own. Oddly enough (or maybe not), it was the ignition switch. I didn't think of that before because I didn't have any problems with the Blazer's starting, and it wasn't stalling, either. Nonetheless, all the weird and funky electrical/fuse-blowing problems were coming from a bad ignition switch. Just thought I'd post the solution in case anyone has/or will have a similar problem. 
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'98 Chevy Blazer has error code P1870.I know this has to do with the transmission,but don't know where to start.This has something to do with the surging I'm sure. Any ideas? Thank you guys! 
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Replying to: pfeifer (Jan 06, 2006 5:29 pm) |
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Hi, I have a 98 Blazer 4.3 LT. The problem with it, is that the 4WD not working. I've checked, and found out that the switch on the dash work, the box under the RH kick panel work, the transfer case work, the vacuum actuator work (pulls the wire real strong).... So I've figured out that the problem should be in the front axle? What is the wire from the vacuum actuator connected to in the front axle? Is there something in the front axle that use to break down? Something easy fixed? Someone had that problem before? I´m quite handy, so fixing it might be simple, just want to know how it works in the axle. Someone that has had this problem before? Or know how it works in the front axle, please help... Any explode wiews of the front axle to wiew somewhere on the internet? Thanks, Magnus
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Replying to: impalacab (Dec 05, 2007 11:18 pm) |
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I recently replaced the heads on my 1997 gmc jimmy 4.3 I have no power to the cab I have power from the battery is there a fusable link that could go out I read of someone who had the same problem after replacing engine I would appreciate some help, thanks Stan
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Replying to: leoandme (Nov 30, 2007 9:58 pm) Actually, it turns out it wasn't the ignition switch after all. After hours of impotently tracing wiring, looking for that ever elusive wire short, I realized that it wasn't a shorted wire in some magical place. So after a few more hours of scouring the internet, I came to realize that it probably was related to what everyone else is having problems with... that damned electric/vacuum actuated 4 wheel drive that has caused Blazer owners everywhere nothing but headaches and empty wallets. Here's what was actually causing my #4 Gauge fuse to blow.... The electrical plug that goes from the actuator to "that black cone shaped gizmo" (or "the donkey d!ck") on the front differential. I unplugged that wire thing, and no more blown fuses! Now here's the part I don't understand though (and if anyone has an explanation, I'd be deeply ingratiated). I expected something with the 4-wheel to not work, once that plug is disconnected, but that's not the case (...yet). The lights on the 4x4 dash switch all work and correspond with whatever is engaged at the time. The 4hi and 4low seem to engage just fine when the buttons are pressed... I hear the "click" when I press one of the buttons, the actuator can be heard engaging the gears for the 4x4 button that was pressed, and in a nano-second, the second "click" can be heard inside the cab again, signaling that the 4x4 is now engaged. The 4x4 indicator lights on the dash stay lit (not reverting back to 2hi at all). Frankly, I'm scratching my head about it all. I guess if that pesky plug doesn't have any productive function (other than to blow fuses), I'll just wrap the ends up with some waterproof adhesive, zip tie the ends somewhere safe, and keep on truckin'. Any advice on what the function of that plug is, or how could it go bad but the actuator itself still be okay, would be much appreciated!
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Hello, I was hoping someone could give me a few quick tips on installing a new thermostat in my 02' Blazer. I would appreciatge any help! Thanks! |
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