Installing watrpump - Cars & Trucks

Probly gut air in system..maybe from bad gaskets. Watrpump cud b worn too. Air etc clogn the heatrcore. Du a smoketest on engine or drain coolant ..save it then refill.

100,000 miles

Probly hurt som parts like injectors or ignition components..also trans cuddagut ovrheatd. Let it rest fora day..then makesure coolant n watrpump works..let me know

(a) Install a new gasket to the thermostat. (b) Install the thermostat with the jiggle valve facing up.
HINT:
The jiggle valve may be set within 10°of either side of the prescribed position.
2. INSTALL WATER INLET
Torque: 10 N·m (102 kgf·cm, 7ft·lbf)
3. INSTALL RADIATOR HOSE OUTLET
4. INSTALL IDLER PULLEY SUB-ASSEMBLY NO.2
5. INSTALL FAN & GENERATOR V BELT
6. INSTALL ENGINE MOUNTING BRACKET FRONT NO.1 LH
7. INSTALL ENGINE MOUNTING CONTROL BRACKET
8. INSTALL ENGINE MOVING CONTROL ROD
9. INSTALL V-BANK COVER SUB-ASSEMBLY
10. ADD ENGINE COOLANT
11. CHECK FOR ENGINE COOLANT LEAKS

the water pump is located on the side of the engine block where the cam belt is .its a straightforward job but again its a physically hard job as the cam belt and auxiliary belt need to be removed .and you will loose all your coolant .then the timing will need to be set up .when your car is due for a cam belt { its always worth replacing the water pump on any car }as its such a pain trying to change the pump again ..if you are thinking of doing this yourself ..I would think again ..it is beyond the scope of a DIY mechanic from the point of view you will nned a ramp and even if you a good home mechanic I doubt that you will have a 2 post ramp!

1. Install lower timing belt cover.
2. Install upper timing belt cover.
3. Install power steering drive belt and adjust belt tension.
4. Install fan pulley.
5. Install generator drive belt and adjust belt tension.
6. Install A/C drive belt and adjust belt tension.
7. Install splash guard.
8. Install fan and fan shroud.
9. Install 4 fan bolts. Tighten to 24 ft lb (33 Nm).
10. Install fan shroud mounting bolts.
11. Install fresh air duct.
12. Connect hose to resonance chamber.
13. Connect battery negative cable.

Hello, randtshook40 and thank you for asking your question on Fixya!

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 1999 Pontiac Montana, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people in your exact situation.
How to diagnose your overheating 1999 Pontiac Montana

Get more great money saving tips and tricks about your vehicle from: twitter.com/acoates23234

Thanks for the vote, and good luck!

Installation
Install crankshaft sprocket on crankshaft.
Make sure mating marks on crankshaft sprocket face front of engine.

Position crankshaft so that No. 1 piston is at TDC and crankshaft key is at 12 o'clock.

Install slack side timing chain guide and timing chain tension guide.

Install timing chain on crankshaft sprocket.
Set timing chain by aligning its mating mark with that on the crankshaft sprocket.
Make sure sprocket's mating mark faces engine front.

Install camshaft sprockets.
Set timing chain by aligning mating marks with those of camshaft sprockets.

Install camshaft sprocket bolts to correct torque.
Apply new engine oil to bolt threads and seat surface.

Install chain tensioner.
Before installing chain tensioner, insert a suitable pin into pin hole of chain tensioner.
After installing chain tensioner, remove the pin.
Install timing chain guide.

Install O-rings to cylinder block.

Before installing front cover, remove all traces of RTV silicone sealant from mating surface using a scraper.
Also remove traces of RTV silicone sealant from mating surface of cylinder block.

Apply a continuous bead of Genuine RTV Silicone Sealant or equivalent to mating surface of front cover. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
Check alignment of mating marks on chain and crankshaft sprocket.
Align oil drive spacer with oil pump.
Place timing chain to the side of chain guide. This prevents the chain from making contact with water seal area of front cover.

Install front cover.

Make sure two O-rings are present.

Be careful not to damage oil seal when installing front cover.
Install cylinder head bolts at engine front side as shown in Fig. 55.
Tightening procedure:
Tighten bolts (1 - 4): 6.3-8.3 N.m (0.64-0.85 kg.m, 55.8-73.5 in.lb).

Install oil pump drive spacer.
Install water pump and water pump pulley. Refer to REMOVAL AND INSTALLATION .
Install idler pulley and bracket.

Install RH engine mounting bracket

Install RH engine mounting.
Install oil pan. Refer to INSTALLATION.
Install crankshaft pulley.
Remove ring gear stopper.
Install starter motor.
Install cylinder head front cover.
Apply RTV silicone sealant to cylinder head front cover.
Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .

Install Camshaft Position Sensor (PHASE).

Before installing rocker cover, apply a bead of Genuine RTV Silicone Sealant or equivalent, to mating surface of cylinder head as shown in .

Install rocker cover gasket into rocker cover.
Install rocker cover and tighten in numerical order as shown in
Install spark plugs.
Install ignition coils.
Install front exhaust tube.
Install front/right-side splash undercover.
Install front RH wheel.
Install drive belts.
Adjusting drive belt deflection..

Ignition Switch Removal & Installation To Remove:

1. Disconnect battery negative cable.
2. Disarm air bag system.
3. Remove driver air bag module.
4. Loosen screw and lift horn pad to remove.
5. Remove lock nut and washer. CAUTION
   Do not hammer on steering wheel. Damage can occur to the energy absorbing portion of the steering column.
   
6. Pull dynamic damper forward and lift up to remove.
7. Remove steering wheel.
8. Remove steering column shrouds.
9. Remove lower cover.
10. Remove multifunction switch.
11. Remove entire lower portion of dash.
12. Remove mounting fasteners and lower steering column.
13. Remove bolts and separate ignition switch from steering column.

To Install:

1. Install ignition switch to steering column and install bolts.
2. Raise steering column and install mounting fasteners.
3. Install lower portion of dash.
4. Install multifunction switch.
5. Install lower cover.
6. Install steering column shrouds.
7. Install steering wheel.
8. Install dynamic damper.
9. Install washer and lock nut.
10. Lift horn pad and install screw.
11. Install driver air bag module.
12. Connect battery negative cable.

Thermostat

Test thermostat in a jug and pour boiling water on it , it should compress meaning it works. Check that the waterpunp is operating pushing water into the engine .Check that radiator water flows to the watrpump. Is tension of fanbelt of waterpump sufficient that it doenst slip. Lastly check that the radiator fan is working if has a electric fan. if this doesn’t help check if radiator or engine water passages isn’t blocked.