Help diagnosis my 89 GMC s15 pickup 4.3l v6 fuel injection

Help diagnosis my 89 GMC s15 pickup 4.3l v6 fuel injection

Please give me advice. 69k original miles. I should also point out the I just put in new wires and plugs about 500 miles ago and the serpentine belt was repl…

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PleaseDoNotLOL says:

a/c wasn’t working right I mean.

ernietrujilloet says:

Turn off your a/c

PleaseDoNotLOL says:

Yeah I thought of it later a/c want working right. Even without ac on belt
hesitates. I’m thinking it’s either the tensioner is shot or air pump…
Not sure. I’m going to try and check out a few different things tomorrow
and take another video.

chevy2440 says:

You AC compressor will kick on with the heater control on the defrost
position. BTW that’s a sweet looking truck love the pink dash too.

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