LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 1990 >> Value Van 6.2 J, Standard >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (Gasoline) >> Fuel System Pressure Relief (Gasoline) >> Model 700 TBI Unit

Model 700 TBI Unit

Place transmission gear selector in Park (Neutral on manual transmissions). Set parking brake and block drive wheels. Loosen fuel filler cap to relieve tank pressure. Disconnect 3-terminal electrical connector at fuel tank. Start engine and allow to run until engine stalls. Crank engine for 3 seconds to relieve any residual pressure left in fuel lines. Fuel lines are now safe for servicing.