Question about 1995 Chevrolet Blazer

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I have a 95 chevy blazer with the 4.3 .i have tested and have spark entering the distributor but no spark leaving the distributor to plugs .have put new crank sensor ,cam pos sensor ,coil,plugs,wires,rotor&cap,and yes the timing was set correctly,this thing has me and two other good mechanics baffled.can anyone help?

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Are you using GM replacement parts? I put an aftermarket rotor and cap on my 93 blazer 4.3 vortec and it did the same thing ......spark at coil but no spark at plug...... Put old dist. back on and the truck started. Got a GM cap and rotor and truck runs great now. GOOD LUCK!

Posted on Feb 09, 2013

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That is indeed odd. I would suspect problems with the hi tension cables if this was not part of the ones you changed since the flow of current ends at the distributor. Check also other cables such as the ground. It is puzzling that all plugs would not have any spark. I would also recommend a scanner used to check for error codes given out by the car's ECU.

Posted on Apr 04, 2011

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