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Chevy blazer starting problem

Discussion in 'Chevy Trucks' started by mushplows87, Oct 13, 2009.

  1. mushplows87

    mushplows87 Junior Member
    Messages: 11

    Hello i have a 98 blazer 4.3 v6 , 150,000 miles, runs well once warmed up but very difficult to start cold, did the usual.. Plugs wires filters etc... Any ideas ? I dont want to guess my way through it with those high miles ......... Thanks joe
     
  2. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Replace the cap & rotor lately? Thats usually the #1 cause of a weak cold start on the Vortec engines. #2 is a weak fuel pressure regulator. A cold start with a pressure gauge makes for easy diagnosis to that one.