don't know why my chevy s10 blazer is hard to start, misfires after replacing bad distributor

Asked by Jan 10, 2017 at 12:18 PM about the 1998 Chevrolet S-10 LS LB RWD

Question type: Maintenance & Repair

Replaced distributor/rotor on 1998 Chevy S10 Blazer V6 4.3l and now timing is off.  Hard to start, misfires when finally starting runs rough not sure what to do?

1 Answer

85,375

Timing is another issue, not going to cause it to run rough. You may have a fuel pressure issue. Should check the fuel pressure, it should be 56 to 63 lbs. Do a bleed down test since a gauge is hooked up, just watch the gauge to see if it holds fuel pressure. Pressure should not drop more than 5 lbs in three min.

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