1986 Buick Regal Check Engine Light Shows That Egr Flow Insufficient You Fix

1986 BUICK REGAL
201,900 MILES
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RANDERS5298
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  • 1 POST
check engine light shows that egr flow is insufficient how do you fix this
Feb 26, 2013 at 9:08 PM
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DUGSMOBILE
  • EXPERT
  • 38 POSTS
More often than not these will plug with crud in the passages. cleaning can be somewhat tricky because the residues tend to get hardened from the temperature of the gasses. If you clean it wrong these chunks will get sucked into engine and can cause valves to hang open or worse. Let a pro do that one.
May 1, 2013 at 1:01 AM
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