58-562 and 55-13411 OVERHEATING AFTER WATER PUMP REPLACEMENT
Application:
2003 Chevrolet
Express, 2003 GMC Savana with 4.8L, 5.3L or 6.0L Gen III V8 Engine (VIN’s V, T, U – RPO’s LR4, LM7, LQ4)
Problem:
Major engine overheating after replacing water pump.
Cause:
Because the engine cooling system no longer uses a pressurized coolant surge tank, engine overheating could result if a special bleeding procedure is not performed. After pump replacement or following a condition where the engine coolant has been drained, if engine coolant is only added through the radiator neck and engine coolant overflow reservoir, the engine coolant may not flow beyond the closed thermostat located on the engine at the lower radiator hose connection. Although the engine coolant level may appear full in the radiator neck, the system may be 3.785 to 5.678 liters (4 to 6 quarts) low, and a major engine overheat
condition may occur.
GM Bulletin No.: 02-06-02-008 Date: September 2002.
Solution:
Fill procedure (see service manual for detailed steps).
CAUTION: Allow engine to cool before opening system.
1. Using a hose clamp tool, reposition upper radiator hose clamp and remove the upper radiator hose.
CAUTION: Relieve system pressure before removing hose.
2. Remove the coolant air bleed hose from the radiator.
3. Place a funnel into the upper radiator hose. Important: Use a 50/50 mixture of antifreeze (refer to vehicle service manual for correct coolant) and deionized water.
4. Slowly fill the cooling system through the upper radiator hose with a 50/50 coolant mixture until the coolant comes out the coolant air bleed hose.
5. Connect the upper radiator hose to the radiator.
6. Using the hose clamp tool, position the radiator hose clamp into the original position on the hose.
7. Connect the coolant air bleed hose to the radiator.
8. Fill the radiator with coolant through the filler neck.
9. Install the coolant pressure cap.
10. Fill the coolant overflow bottle to the full line.
11. Start the engine.
12. Run the engine at 2000-2500 RPM until the engine reaches normal operating temperature.
13. Allow the engine to idle for 3 minutes, frequently checking for proper coolant temperature.
14. Shut the engine off.
15. Allow the engine to cool.
16. Top off the coolant as necessary.
17. Inspect the concentration of the engine coolant using a suitable coolant tester.
18. Rinse away any excess coolant from the engine and the engine compartment.
19. Inspect the cooling system for leaks.
Note:
This PROTECH bulletin is supplied as technical information only and is not an authorization for repair
UI BULLETIN # 60
To View or Download this Document Click Here
58-562 and 55-13411 OVERHEATING AFTER WATER PUMP REPLACEMENT
- Unsurpassed freeze protection and anti-boil performance outperforms industry standards
- Organic acid technology resists rust, scale & corrosion while protecting all cooling system metals (including aluminum)
- High-quality additives protect against leaks and won’t harm gaskets, hoses, plastics or original vehicle finish
- Pre-mixed orange formula is ready-to-use in a 50/50 ratio with deionized water to protect all modern engine components from winter freezing (-34F) and summer boiling (265F).
- 5 year/150,000 mile guarantee protects against engine failure caused by freeze-ups or boil-overs
- Unsurpassed freeze protection and anti-boil performance outperforms industry standards
- Organic acid technology resists rust, scale & corrosion while protecting all cooling system metals (including aluminum)
- High-quality additives protect against leaks and won’t harm gaskets, hoses, plastics or original vehicle finish
- Orange concentrate formula should be mixed with clean tap water or demineralized water at 50/50 ratio for temperatures -34 to 265F; 60/40 for -62 to 270F; and 70/30 for -84 to 267F
- 5 year/150,000 mile guarantee protects against engine failure caused by freeze-ups or boil-overs
- VERSATILE ENGINE COOLANT: This antifreeze + coolant is designed for use in all GM vehicles 1995 and newer requiring an orange organic acid technology (OAT) coolant. This item contains a bittering agent called Denatonium Benzoate.
- PROTECTS ENGINE: This antifreeze + coolant provides protection against rust and corrosion for all cooling system metals, including aluminum
- LONG-LASTING COOLANT: This antifreeze + coolant has a service life of up to 10 years/150,000 miles with a complete cooling system flush and fill
- BETTER FORMULA: Our antifreeze coolant solution is free of amines, phosphate, borate, nitrite and silicate
- EXCELLENT PERFORMANCE: This meets the performance requirements of ASTM D3306, D4985 and GMW3420, GM6277M
- 1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants. This item contains a bittering agent called Denatonium Benzoate.
- PROTECTS: Advanced formulation prevents rust & corrosion protecting all engine cooling system components
- DESIGNED FOR NORTH AMERICAN VEHICLES: Recommended for use with Ford
, Chrysler, and GM vehicles that require an orange organic acid technology formula - GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 400,000 miles or 15 years.
- 50/50 PREDILUTED FOR QUICK TOP OFFS: Already prediluted to make topping off your cooling system a breeze
- ACDelco 10-101 DEX COOL (ORANGE)
- Contains A Bittering Agent
- OEM
Last update on 2026-05-27 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
Is there a varient procedure for servicing a 15 passenger van with rear air and heat
This procedure should work.