I have a 98 chevy c 1500 305 motor distributor cap problems

Asked by Oct 03, 2015 at 03:38 PM about the 1998 Chevrolet C/K 1500 Silverado LB RWD

Question type: Maintenance & Repair

i have bought this truck 5 months ago and i replace distributor cap rain storm
came through then its spit and sputter if im lucky but for the about to be 3 time
replacing it im getting a little mad about it is there anything i can do??  new
spark and wires i did do

1 Answer


The old caps can short out with water hitting them. If they are hot, they may crack and short out the cap. Only fix is to replace them. Expensive fix is to get a different cap that is not subject to water damage but it will mean a new distributor. Find a way to stop rain from entering the rear top of the engine. Hood seals? If you go off roading and go through water that splashes up into the engine bay, you do need a water proof distributor. Try going pointless ignition (transistorized) or put a small plastic bucket over it, redneck style. My Corvette did that a few times in heavy rain and I ran through heavy water on the roadway and it got to the top rear of the engine. Spray it with W-D 40 fir it happens again, it will push the water out and that is all that may be needed. I believe the old caps are made with bakelite and they do crack if hot and hit with cold water.

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