Question about 1991 Chevrolet S-10 Blazer
My baby has no spark have changed plugs, wires, coil,2 peices under distributor and yet still no spark. what could be wrong. Please help lost without my wheels.
I had the same problem with 1991 s10
check the oil pump pressure switch and current to the switch.
The computer will not allow the spark plugs to fire if the oil pressure switch is not sending a signal to the computer that the oil is flowing.
My problem was a short in the wiring that was not sending enough current to the oil pressure switch.
I had to crank the starter three or four times at 5 second intervals until the current was suffient to operate the oil pressure switch.
The switch is a round cylinder device located on th drives side of the engine near the oil filter.
Posted on Jul 31, 2008
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Posted on Jan 02, 2017
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