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Home >> Buick >> 1989 >> Electra Estate Wagon >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L (307") V8 - VIN [Y] >> Removal & Installation >> Valve Covers >> Removal

Valve Covers: Removal

  1. Disconnect negative battery cable. On left side, mark and remove spark plug wires and necessary electrical connectors. Remove anti-dieseling solenoid. Remove alternator belt and rear brace. Loosen exhaust manifold upper shroud only. Remove EGR valve and oil dip stick.
  2. On right side, reposition and move heater hoses. Remove PCV valve and hose. Disconnect anti-dieseling solenoid vacuum hoses. Disconnect AIR, O2 sensor and anti-dieseling solenoid. Disconnect canister purge hose. Disconnect hoses to AIR switching valve and catalytic converter pipe. Remove AIR switching valve, AIR/AC belt, AIR pump pulley and A/C compressor rear brace.
  3. On both sides, remove valve cover bolts/nuts. Install Valve Cover Seal Breaker (BT-8315 or J-34144) midway between the ends of valve cover, on upper side. See Figure . Tighten screw on seal breaker until a load is applied to valve cover. Place cloth on valve cover and strike with rubber mallet. If cloth is not used to absorb mallet, valve cover will be damaged.
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