Engine - High Idle/No A/C or Cruise Control
Number 87-6 (Gasoline)-54 Date 7/87Subject: VACUUM PORT LEAKAGE
1987 SUNBIRD MODELS EQUIPPED WITH OHC 4 ENGINE (VIN CODE K) WITHOUT A/C AND WITHOUT CRUISE CONTROL
Customer vehicles that exhibit a higher than normal idle RPM and have no A/C or cruise control should be checked for a vacuum leak at the intake manifold vacuum fitting.
Vehicles between the following VINS:
K1H7593965 to K1H7602202 have an incorrect vacuum cap that should be replaced by P/N 343350, which is available from GMSPO.
Warranty Information
Labor Operation: J6980
Labor Time : .2 hours