have a 1980 luv truck bght new. engine running rough have changed carb, new points, condenser rotor fuel pump checked gas for dirt, ok changed all hosing for new hosing. when ideling runs rough, a little black smoke. it s a calif. luv wonder if smog equipt such as egr a mixing value or air value would make it run on the rich side. synoid diesel synod check and is ok when carb rebuilt. thanks for any answers ed

Asked by Jun 27, 2014 at 07:37 PM about the 1980 Chevrolet LUV

Question type: Maintenance & Repair

1 Answer

12,145

It sounds your truck needs to have the timing checked and the carburetor fine tuned. Was the float put in new when rebuilding the carburetor? Also make sure the correct spark plugs are in, clean, and adjusted correctly.

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