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Originally Posted by rlith
Only real way to find out is to re pull the upper plenum and check (its worth a 7 dollar gasket replacement)...
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That comment got my butt moving. I've been "over diagnosing" and not getting anywhere. I have a 93 S10 Blazer, 4.3 CPI, W and have had hard starting, black soot coming out the exhaust and other symptoms that I've posted.
Here's some pics that I think show a bad regulator. they're not as clear as the rlith pics inasmuch as the color/contrast differences but that may be because of different lighting/camera/flash etc.
Experts! What do you think?
