Weak spark

Asked by Apr 16, 2017 at 10:36 PM about the 1999 Chevrolet C/K 2500 Extended Cab LB HD 4WD

Question type: Maintenance & Repair

What causes a weak spark

2 Answers

A few months back I replace my intake manifold gasket I put it back together I time my truck I put it back TDC and and put the distributor face 1 I replaced the crank sensor put new spark plugs & wires & new distributor cap & a new rotor and I tested the spark with a tester it giving a orange spark.

30,775

A bright blue spark is best. A yellow/orange spark signifies weak ignition. BUT IT CAN BE THE PLUG ITSELF TRY A DIRRERENT TYPE..BRAND...GAP POWER FEED LINES CAN BE MADE LARGER EASY TO ADD A MSD BOX TO IT..

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