2000 Chevy Silverado Engines
Complete Guide to 4.3L V6, 4.8L & 5.3L Vortec V8 Specs, Problems & Repair Options
Available Engine Options
| Engine | Displacement | Horsepower | Torque | Fuel System | Reliability |
|---|---|---|---|---|---|
| 4.3L Vortec V6 (LU3) | 262 ci | 200 hp @ 4600 | 260 lb-ft @ 2800 | CSFI Spider* | Good* |
| 4.8L Vortec V8 (LR4) | 293 ci | 270 hp @ 5200 | 285 lb-ft @ 4000 | SFI | Excellent |
| 5.3L Vortec V8 (LM7) | 325 ci | 285 hp @ 5200 | 325 lb-ft @ 4000 | SFI | Excellent |
*The 4.3L V6 uses the older "spider" fuel injection system which has known reliability issues. The V8 engines use modern Sequential Fuel Injection (SFI) and are more reliable.
Why 2000 Silverado Engines Are Sought After
The 2000 Silverado was the second year of GM's new LS-based engine architecture. Unlike later models (2007-2019), these engines do NOT have Active Fuel Management (AFM) or Displacement on Demand (DOD), making them significantly more reliable long-term.
Advantages Over Newer Models:
- - No AFM oil consumption problems
- - No AFM lifter failure issues
- - Simpler, more reliable design
- - Easier and cheaper to repair
- - Many reach 300,000+ miles
Common Issues to Watch:
- - Fuel pump failure (100-150k miles)
- - Intake manifold gasket leaks
- - Knock sensor failures
- - Spider injector issues (4.3L only)
- - Water pump wear (80-120k miles)
Repair vs. Replace: Get an Accurate Quote
Minor Repairs
Call for Quote
- - TPS replacement
- - Water pump replacement
- - Thermostat service
- - Coolant flush
Major Repairs
Call for Quote
- - Fuel pump replacement
- - Intake manifold gaskets
- - Knock sensor replacement
- - Spider injector upgrade (4.3L)
Engine Replacement
Call for Quote
- - Remanufactured engine
- - Installation labor
- - Fluids and gaskets
- - 2-3 year warranty included
Call (707) 584-7727 for an accurate quote based on your specific situation. The 2000 Silverado is often worth repairing due to its simplicity and reliability.
Chevrolet Silverado 1500 2000
Complete Transmission Repair Guide
Expert insights on common transmission problems, repair costs, and maintenance for your Chevrolet Silverado 1500. Trusted by Sonoma County drivers since 1978.
Common Chevrolet Silverado 1500 Transmission Problems
Based on our 45+ years of experience, these are the most common transmission issues we see with this vehicle model.
Fuel Pump Failure
The in-tank electric fuel pump is one of the most common failures on 2000 Silverados. The pump module is located inside the fuel tank, requiring tank removal for replacement. Many trucks experience fuel pump failure between 100,000-150,000 miles. Early symptoms include extended cranking or hesitation under heavy acceleration. Replacement typically costs $400-$800 including labor.
Common Symptoms
- •Extended cranking before starting
- •Engine stalling at idle or under load
- •Loss of power during acceleration
- •Whining noise from fuel tank area
- •Complete no-start condition
- •Intermittent starting issues
Intake Manifold Gasket Leak
The plastic/composite intake manifold gaskets on the 4.8L and 5.3L engines are prone to failure. When they fail, coolant can leak internally into the oil system or externally. Internal leaks are particularly dangerous as they can cause severe engine damage. GM released updated gaskets to address this issue. Early detection is critical - watch for any coolant loss without visible leaks.
Common Symptoms
- •Coolant loss with no visible external leak
- •Engine overheating
- •White smoke from exhaust
- •Sweet smell from engine bay
- •Rough idle and misfires
- •Milky oil on dipstick (coolant mixing with oil)
Immediate attention required! This issue can lead to complete transmission failure if not addressed.
Knock Sensor Failure
The knock sensors are located under the intake manifold on all 2000 Silverado V8 engines, making replacement labor-intensive. Heat and age cause these sensors to fail, triggering check engine codes and reduced performance. The ECM retards timing when sensors fail, resulting in lost power and worse fuel economy. Both sensors are typically replaced together due to labor involved.
Common Symptoms
- •Check engine light with P0325, P0327, or P0332 codes
- •Engine knocking or pinging under load
- •Reduced power and poor acceleration
- •Poor fuel economy
- •Engine running rough on regular fuel
Spider Injector Problems (4.3L V6)
The 4.3L Vortec V6 uses a "spider" style Central Sequential Fuel Injection (CSFI) system that was known for leaking and clogging. The plastic fuel lines become brittle with age and crack, causing fuel leaks. GM redesigned this system, and updated MPFI spider assemblies are available as a permanent fix. This issue is specific to the 4.3L V6 - the 4.8L and 5.3L V8s use individual coil-on-plug ignition.
Common Symptoms
- •Hard starting when cold
- •Rough idle
- •Fuel odor from engine bay
- •Poor fuel economy
- •Hesitation during acceleration
- •Random misfires
Water Pump Failure
Water pump bearings and seals commonly fail on 2000 Silverado engines. The pump is driven by the serpentine belt and typically fails between 80,000-120,000 miles. Early warning signs include a weep hole leak at the pump or bearing noise. Replacement is relatively straightforward and costs $250-$500 with labor.
Common Symptoms
- •Coolant leak from front of engine
- •Whining or grinding noise from water pump pulley
- •Engine overheating
- •Steam from engine bay
- •Coolant puddle under vehicle
Throttle Position Sensor (TPS) Failure
The throttle position sensor on 2000 Silverados is a common failure point. It tells the engine computer the position of the throttle plate. When it fails, the engine may idle erratically, stall, or hesitate during acceleration. The TPS is located on the throttle body and is relatively inexpensive to replace ($50-$150 with labor).
Common Symptoms
- •Erratic idle speed
- •Stalling at stops
- •Hesitation during acceleration
- •Check engine light with P0121, P0122, or P0123 codes
- •Poor throttle response
- •Engine surging
Cylinder Head Porosity (5.3L)
Some early 5.3L engines (1999-2003) have cylinder heads with porosity issues - microscopic holes in the casting that allow coolant to enter the combustion chamber or oil passages. This is a manufacturing defect that worsens over time. Symptoms are similar to head gasket failure. Repair requires cylinder head replacement. This issue affects some trucks but is not universal.
Common Symptoms
- •Slow coolant loss with no visible leak
- •White moisture in exhaust
- •Milky residue on oil filler cap
- •Bubbles in coolant overflow tank
- •Overheating under heavy load
- •Sweet smell from exhaust
Immediate attention required! This issue can lead to complete transmission failure if not addressed.
Not seeing your specific issue? Our ASE-certified technicians can diagnose any transmission problem.
Contact Our ExpertsChevrolet Silverado 1500 Transmission Services Available
Professional transmission repair services tailored to your Chevrolet Silverado 1500. Contact us for a personalized quote based on your vehicle's specific needs.
Our Services Include:
Complete Engine Diagnostics
Full computer scan, compression test, leak-down test, and visual inspection to accurately identify engine problems on your 2000 Silverado.
Fuel Pump Replacement
Complete fuel pump module replacement including fuel tank removal, new pump, and fuel system pressure testing.
Intake Manifold Gasket Replacement
Replacement of intake manifold gaskets with updated design. Includes coolant flush and pressure testing.
Knock Sensor Replacement
Replacement of both knock sensors with intake manifold removal. Includes wiring harness inspection and proper torque specifications.
Spider Injector Upgrade (4.3L)
Upgrade from CSFI spider system to updated MPFI design for improved reliability and performance on 4.3L V6 engines.
Cooling System Service
Water pump replacement, thermostat service, coolant flush, radiator inspection, and pressure testing.
Throttle Body Service
Throttle body cleaning, TPS replacement, and idle relearn procedure.
Engine Rebuild
Complete engine overhaul including new bearings, gaskets, timing chain, and machined surfaces. 2-year/24,000-mile warranty.
Remanufactured Engine Installation
Installation of quality remanufactured 4.8L or 5.3L engine with warranty. More cost-effective than rebuild for high-mileage engines.
Get Your Personalized Quote
Every Chevrolet Silverado 1500 is unique, and repair costs can vary based on:
- ✓Your vehicle's specific condition and mileage
- ✓The extent of repairs needed
- ✓Parts availability and options (OEM vs. aftermarket)
- ✓Any additional services discovered during inspection
Free Diagnostics: We provide comprehensive diagnostic services at no charge to accurately identify your transmission issues before any work begins. You'll receive a detailed written estimate with transparent pricing.
Why Choose Rohnert Park Transmission?
Transparent Pricing
No hidden fees or surprise charges. You approve all work before we begin.
Expert Technicians
ASE-certified specialists with extensive Chevrolet Silverado 1500 experience.
Quality Parts
We use OEM or equivalent quality parts for lasting repairs.
Convenient Service
Quick turnaround times and loaner vehicles available.
Chevrolet Silverado 1500 Transmission Maintenance Schedule
Follow this factory-recommended maintenance schedule to prevent costly transmission repairs and extend the life of your vehicle.
Professional Tip from Rohnert Park Transmission
Regular transmission fluid changes are the single most important maintenance item for preventing costly repairs. We recommend checking your fluid level and condition every 3,000 miles or during regular oil changes.
Schedule Maintenance CheckChevrolet Silverado 1500 Recalls & Technical Service Bulletins
Stay informed about important safety recalls and manufacturer service bulletins for your vehicle.
Active Recalls
Fuel Tank Strap Corrosion
Recall ID: 00V135000
Fuel tank straps may corrode and break, causing the fuel tank to drop. Affects certain trucks in corrosion-prone areas.
Brake Warning Light
Recall ID: 00V044000
The brake warning light may not illuminate when the parking brake is applied due to a faulty switch.
Steering Shaft
Recall ID: 99V276000
The intermediate steering shaft may separate, causing loss of steering control.
Technical Service Bulletins (TSBs)
What are TSBs? Technical Service Bulletins are manufacturer advisories about known issues and recommended repair procedures. They are not recalls but provide valuable repair guidance.
Intake Manifold Gasket Update
TSB #TSB 02-06-01-022 • Issued: 2002-03-15
Updated intake manifold gaskets available to address coolant leaks. Use revised gasket design for all 4.8L and 5.3L repairs.
Related Symptoms:
Knock Sensor Service Procedure
TSB #TSB 00-06-04-036 • Issued: 2000-09-20
Proper procedure for knock sensor replacement including torque specifications and connector inspection.
Related Symptoms:
Spider Injector Fuel Leak
TSB #TSB 01-06-04-023 • Issued: 2001-06-15
4.3L V6 spider injector replacement procedure. Updated MPFI assembly addresses fuel leak and hard start issues.
Related Symptoms:
Idle Surge or Stall After Restart
TSB #TSB 00-06-01-015 • Issued: 2000-07-10
PCM recalibration to address idle surge or stall condition after engine restart.
Related Symptoms:
Need Help with a Recall or TSB?
Our certified technicians are familiar with all Chevrolet Silverado 1500 recalls and service bulletins. We can perform recall repairs and TSB-related services quickly and professionally.
Related Vehicle Repair Guides
2011 Silverado Engine Guide
Complete 2011 Silverado engine guide with AFM oil consumption and lifter failure information.
View Guide →2012 Silverado Engine Guide
Complete guide to 2012 Silverado engines including 5.3L AFM problems and 6.2L specs.
View Guide →Silverado Transmission Repair Guide
Complete guide to Silverado transmission issues including 4L60E and 4L80E problems.
View Guide →Check Engine Light Silverado Guide
Understanding check engine light issues on Silverado trucks.
View Guide →Chevrolet Repair Services
All Chevrolet repair services available at Rohnert Park Transmission.
View Guide →Engine Repair Services
Complete engine repair and replacement services.
View Guide →Frequently Asked Questions
What engines came in the 2000 Chevy Silverado 1500?
The 2000 Silverado 1500 offered three engine options: a 4.3L Vortec V6 (200 hp), 4.8L Vortec V8 (270 hp), and 5.3L Vortec V8 (285 hp). The 5.3L was the most popular choice. All engines were paired with a 4-speed automatic (4L60E) or 5-speed manual transmission. The 2000 model year introduced the new LS-based engine architecture.
Which 2000 Silverado engine is most reliable?
The 4.8L Vortec V8 is considered highly reliable, as is the 5.3L. Unlike later models (2007+), the 2000 Silverado engines do NOT have Active Fuel Management (AFM/DOD), which means they avoid the oil consumption and lifter failure issues that plague newer models. With proper maintenance, these engines regularly exceed 200,000-300,000 miles.
Does the 2000 Silverado have AFM/DOD problems?
No. Active Fuel Management (AFM), also called Displacement on Demand (DOD), was not introduced until the 2007 model year. The 2000 Silverado engines run on all cylinders all the time, which is actually more reliable long-term. This is one advantage of older Silverados over 2007-2019 models with AFM.
How much does it cost to replace a 2000 Silverado engine?
A remanufactured engine for a 2000 Silverado typically costs $1,500-$3,000 for the engine. With installation labor, total cost ranges from $2,500-$5,000 depending on the engine size and shop rates. Used engines from salvage yards cost less ($500-$1,500) but come with more risk. Call (707) 584-7727 for a personalized estimate.
What is the intake manifold gasket issue on 2000 Silverados?
The original intake manifold gaskets on 4.8L and 5.3L engines were prone to failure, allowing coolant to leak internally or externally. Internal leaks are serious as coolant can mix with oil and damage the engine. GM released updated gaskets to fix this. If you notice coolant loss without visible leaks, have it inspected immediately.
Why does my 2000 Silverado have a check engine light for knock sensors?
The knock sensors on 2000 Silverado V8s are located under the intake manifold and commonly fail due to heat and age. Codes P0325, P0327, and P0332 indicate knock sensor issues. When failed, the engine computer retards timing, causing reduced power and poor fuel economy. Replacement requires intake manifold removal, so both sensors are typically replaced together.
What is the spider injector problem on the 4.3L V6?
The 4.3L Vortec V6 uses a unique Central Sequential Fuel Injection (CSFI) "spider" system. The plastic fuel lines in this system become brittle and crack with age, causing fuel leaks and hard starting. The fix is to replace the spider assembly with an updated MPFI (Multi-Port Fuel Injection) design that eliminates the problematic fuel lines.
How many miles can a 2000 Silverado engine last?
With proper maintenance, the 4.8L and 5.3L engines can last 250,000-400,000+ miles. Some owners have reported over 450,000 miles on the original engine. Key factors are regular oil changes, addressing coolant leaks promptly, and replacing the fuel pump and water pump when needed. The lack of AFM makes these engines more durable than 2007-2019 Silverados.
Should I repair or replace my 2000 Silverado engine?
Given the truck's age (25+ years), the decision depends on overall condition and your plans. If the body, transmission, and frame are solid, engine repair or replacement can be worthwhile since these trucks are sought after for their simplicity and reliability. A 2000 Silverado with a fresh engine can run for years. Call us at (707) 584-7727 for honest advice based on your specific situation.
What is the cylinder head porosity issue on 5.3L engines?
Some early 5.3L engines (1999-2003) had cylinder heads with casting defects - tiny holes that allow coolant to seep into the combustion chamber or oil. Symptoms mimic head gasket failure: slow coolant loss, white exhaust, milky oil. This isn't universal but does affect some engines. The only fix is cylinder head replacement.
Have more questions about your Chevrolet Silverado 1500?
Talk to Our ExpertsTrusted Chevrolet Silverado 1500 Transmission Repair in Sonoma County
For over 45 years, Rohnert Park Transmission has been the go-to shop for Chevrolet owners throughout Sonoma County. Our ASE-certified technicians specialize in Silverado 1500 transmission repair and maintenance.
Why Choose Rohnert Park Transmission?
- ✓Factory-trained technicians specializing in Chevrolet transmissions
- ✓State-of-the-art diagnostic equipment for accurate problem identification
- ✓Transparent pricing with free estimates and no hidden fees
- ✓Same-day service for most transmission repairs
- ✓Convenient location serving Rohnert Park, Santa Rosa, and Petaluma
2000 Silverado Engine Repair in Rohnert Park
At Rohnert Park Transmission & Auto Repair, we've been working on Chevrolet Silverados for over 27 years. The 2000 model year holds a special place for truck enthusiasts - it's reliable, simple to work on, and many examples are still on the road with 200,000-400,000+ miles. Whether you're dealing with a fuel pump failure, intake manifold gasket leak, or need a complete engine rebuild, our ASE-certified technicians have the experience to get your truck back on the road.
Why Sonoma County 2000 Silverado Owners Choose Us:
- ✓Classic Truck Specialists: We understand the value of keeping these reliable trucks running
- ✓Honest Assessment: We'll tell you if repair makes sense or if it's time for a new engine
- ✓Quality Parts: We use OEM-quality gaskets, sensors, and components
- ✓Warranty Protection: All major repairs backed by our 2-year/24,000-mile warranty
- ✓Fair Pricing: Competitive rates - often less than dealerships for classic truck repairs
Don't give up on your 2000 Silverado. These trucks are worth keeping on the road! Call us today for expert diagnosis and repair.