89 Chevrolet Blazer 4.3 4X4

May 13, 2005 5 Replies

While driving it almost feels like its going to cut out looses power really quick but then it comes back. Does this to anyone sound like it may be a fuel issue or perhaps a transmission issue?



Sounds like a bad main ground (battery negative to engine block) or main positive (battery positive to power distribution block).

Doc

>

I'd also check out the MAP sensor, and basic tuneup items.

I had a problem that sounds very much like what you describe-- ended up being poorly-crimped spark plug wires that, over the course of 15K miles had vibrated loose on the distrib end.

wait a minute...just had to replace my distributor cause the bushing on shaft went south...It's just a guess but the motor ran like crap..grab the top and see if it wobbles

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