Pressure test will reveal if its the pump or ---- else
if coolant leaking from behind the timing cover I would say its the water pump and timing cover need to be removed for checking
I would suggest also replacing the timing belt
1.Raise vehicle. Remove accessory drive belt splash shield. Remove accessory drive belts. Remove crankshaft pulleys and vibration damper.
2.Lower vehicle. Support engine weight with floor jack. Remove purge duty solenoid and wiring harness from right engine mount bracket.
3.Remove 2 right engine mount insulator vertical bolts Remove the one horizontal fastener. DO NOT remove large nut from center bolt of insulator rubber. Remove horizontal and vertical fasteners from engine side of mount. Remove engine mount.
4.Remove engine support bracket from front of engine. Remove timing belt covers, noting bolt length for installation reference. Note direction of flange installation on front of crankshaft, in front of crankshaft sprocket. Remove flange.
5.Rotate crankshaft, and align timing marks on camshaft sprockets and crankshaft sprocket. If reusing timing belt, mark direction of timing belt rotation for installation reference.
6.Loosen timing belt tensioner bolt. Move timing belt tensioner away from timing belt, and temporarily tighten bolt. Remove timing belt.
7.Drain cooling system. Remove bolts, water pump, gasket and "O" ring on coolant inlet pipe.
8.To install, reverse removal procedure using NEW "O" ring and NEW gasket. Apply water to "O" ring before installing water pump. DO NOT apply grease to "O" ring.
9.To install remaining components, reverse removal procedure. Fill cooling system.
Friday, October 17th, 2008 AT 5:41 AM