Twinpilot001 Posted August 17, 2014 Report Share Posted August 17, 2014 need a vacumn diagram for a 1988 olds cutlas supreme with 2.8 l engine-all I can find is diagrams with 3 lines coming from top of plenum area -this car has 4 lines !! Help!! Quote Link to comment Share on other sites More sharing options...
ManicMechanic Posted August 17, 2014 Report Share Posted August 17, 2014 Quote Link to comment Share on other sites More sharing options...
Twinpilot001 Posted September 9, 2014 Author Report Share Posted September 9, 2014 found out thhis 88 olds 2.8 uses a map & a maf sensor-appears only year done like that ?? discovered the map was leaking & will replace it!! took my vac tester to salvage yard & found a good one!! well test Quote Link to comment Share on other sites More sharing options...
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