Description: Diesel Fuel Injector Pump CP3 Chevrolet Express 4500, 2500, 3500, Chevrolet Silverado, GMC Savana 2500 (2006-2010), GMC Sierra 3500
Brand: Bosch
Condition: New
Part Number: 0-986-437-332, 0986437332
Fitment 0-986-437-332:
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Chevrolet Express 4500 (2009-2010)
Chevrolet Silverado 3500 Classic (2007)
Chevrolet Express 2500 (2006-2010)
Chevrolet Express 3500 (2006-2010)
GMC Savana 2500 (2006-2010)
GMC Sierra 3500 Classic (2007)
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A Diesel Fuel Injector Pump 0-986-437-332 is a crucial component in a diesel engine’s fuel system. Its main job is to deliver the right amount of diesel fuel at the right time and at very high pressure to the engine’s fuel injectors, which then spray it into the combustion chamber for ignition.
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Fuel Delivery:
The pump draws diesel fuel from the tank and pressurizes it to a level sufficient for injection (often hundreds of times atmospheric pressure).
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Timing Control:
Diesel engines rely on precise timing for efficiency and power. The injector pump ensures fuel is injected exactly when the piston is in the right position for combustion.
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Metering Fuel Quantity:
It controls how much fuel is delivered to match engine speed and load. Too much fuel wastes fuel and creates smoke; too little reduces power.
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Types of Diesel Fuel Injector Pumps:
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Inline Pump: Individual plunger for each cylinder; common in older heavy-duty engines.
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Rotary/Distributor Pump: A single plunger and rotor distribute fuel to cylinders; more compact, used in cars and light trucks.
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Common Rail Systems: Modern engines use a high-pressure pump to supply a shared “common rail” that feeds injectors electronically.
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Key Components:
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Plunger(s) or rotor for pressurizing fuel
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Delivery valves and timing mechanisms
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Control rack or electronic actuator for regulating fuel quantity
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Signs of Faulty 0-986-437-332
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1. Engine Performance Issues
Hard starting: Engine struggles to start, especially when cold.
Loss of power: The engine may feel weak, struggle to accelerate, or not reach full RPM.
Stalling: Engine may cut out at idle or under load.
2. Fuel Delivery Problems
Poor fuel efficiency: Engine consumes more fuel than usual because of improper injection.
Excessive smoke: Black or blue smoke from the exhaust indicates incomplete combustion, often caused by wrong fuel timing or quantity.
Fuel leaks: Visible diesel leaks near the pump or fuel lines.
3. Strange Engine Noises
Knocking or ticking sounds: Could indicate uneven fuel delivery to cylinders.
4. Engine Warning Lights
Modern diesel vehicles may trigger the check engine light or a diagnostic trouble code related to fuel pressure or injector timing.
5. Erratic Idle or Surging
Engine may idle unevenly or surge at steady throttle due to inconsistent fuel supply.
6. Contaminated Fuel or Air in Fuel Lines
Air bubbles in fuel lines or contamination can cause pump damage and erratic operation.
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Manufacturer information:
Bosch® keeps the world mobile. It is among the oldest and largest manufacturers of automotive parts, accessories, and hardware. Founded by Robert Bosch as the "Workshop for Precision Mechanics and Electrical Engineering" in 1886, Bosch was known for its innovative strength and social commitment. Bosch spare parts are world recognized for their remarkable quality and reliability, and groundbreaking technology. This brand combines its wide-ranging expertise in automotive technology with advanced software, hardware, and services to deliver comprehensive mobility solutions. With its state-of-the-art brake systems, lighting systems, long-lasting batteries, air filters, starters, and wiper blades, and many other products, Bosch provides the auto and truck parts markets with world-class replacement and spare parts that make driving safer, less stressful, and more eco-friendly.
Warranty
First Truck Parts offers a 365 -days warranty for all types of parts and in any condition. The warranty applies only to buyers who have placed an order on our website.
