OEM 2007 Cadillac CTS Coolant Reservoir

2007 Cadillac CTS Parts Questions & Experts Answers

• Q: How to replace the Coolant Reservoir (LP1, LY7) on 2007 Cadillac CTS?

  A: Coolant draining should be the first step before Coolant Reservoir (LP1, LY7) replacement. Begin by removing clutch master cylinder reservoir bolts when you start working with a manual transmission. Set the reservoir safely aside. The Coolant Reservoir inlet hose gets its clamp removed with hose clamp pliers (J 38185). Then remove the hose by sliding off the clamp and disconnecting it. Transfer this method to remove the Coolant Reservoir outlet hose. First remove the master cylinder nuts then disconnect the Coolant Reservoir from the brake lines without breaking them while you position it to the side in a gentle manner. First disconnect the two Coolant Reservoir bolts and the Coolant Reservoir nut before partially elevating the air inlet grille panel to access and remove the Coolant Reservoir. Installation requires plunging the Coolant Reservoir tab between air inlet grille screen and reconnecting outlet hose before clamping with hose clamp pliers (J 38185). Tighten the Coolant Reservoir nut to 9 n.m (80 lb in) using the hose clamp pliers (J 38185) which allows you to install the inlet hose before readjusting the clamp. Tighten each Coolant Reservoir bolt to 9 n.m (80 lb in) torque. Reattach the vacuum booster connection to the master cylinder after you install its nuts with 25 n.m (18 lb ft) of torque. Align the manual transmission clutch master cylinder reservoir on its bracket then tighten the clutch master cylinder reservoir bolts to 50 n.m (37 lb ft).