Question about 1997 Chevrolet Blazer
Fuel pump has been replaced so i'm wanting to know if it could be the crankshaft sensor.
Had the same problem with by 1998 S10 a couple years ago. Changed fuel filter?? didn't work. Changed the fuel pump?? didn't work. Changed the fuel pressure regulator?? didn't work.
I was about to the end of my rope when I put a timing light on it and it showed firing on cylinders more then once a cycle. Turns out my distributor cap was bad and spark was jumping between contacts. When a spark is spread out over more then one cylinder, it doesn't fire correctly and that is causing it to bog out. Simple and a lot cheaper then all the other fixes I tried. Crank sensor was my next option though.
Posted on Feb 01, 2009
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