blazen_red_4x4 |
05-18-2014 10:42 PM |
Auto repair tip (more or less a rant...)
If you're unsure about what you're doing when trying to repair something on a vehicle, don't just take a guess and/or ghetto rig something up to work, ESPECIALLY when it comes to wiring...
I picked up an 04 Blazer knowing the AC compressor was locked up. On further inspection, it looks like it needed an intake gasket job. Upon tearing everything apart, I found a random wire spliced into the AC clutch plug, that ran up and spliced somewhere into the harness along the top of the firewall. I figured it probably had something to do with why the compressor was locked up... and after tracing the wire, I was right. Apparently, the previous owner thought it would be a good idea to splice into the wiring for the blower motor and use that to engage the AC clutch... bypassing both the low and high pressure switches. Guess there use to be a leak, the ran the thing low on freon, and in turn compressor oil, and low and behold since the thing didn't shut off because they bypassed the sensors, it locked up sold...
Well in the midst of the intake gasket repair, I also installed a brand new AC compressor, condensor, accumulator, all the lines, everything but the evaporator (which I thoroughly flushed). Fired it up, charged the system with fresh freon, and low and behold, the thing blows ice cold air, WITHOUT a ghetto jumper wire...
Luckily so far, that appears to be the only thing the previous owner attempted to repair :icon_angel:
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