2007 Mazda B4000

Introduction

The 2007 Mazda B4000 is a mid-size pickup truck that was offered with two engine options: a 3.0-liter V6 and a 4.0-liter V6. Both engines were paired with a five-speed manual transmission or a five-speed automatic transmission. The B4000 was known for its comfortable interior, capable off-road performance, and affordable price. However, it also had some reliability issues, which we will discuss in detail below.

Engine

• 3.0-liter V6
  • Head gasket failure
    • Description/Symptoms: Coolant leaking from the head gasket, overheating, white smoke from the exhaust
    • Solution: Replace the head gasket
    • Estimated Cost to Fix: $1,500 - $2,500+
    • Recalls: None Found
  • Timing belt failure
    • Description/Symptoms: Engine will not start, loud knocking noise from the engine
    • Solution: Replace the timing belt
    • Estimated Cost to Fix: $600 - $1,200
    • Recalls: None Found
• 4.0-liter V6
  • Intake manifold gasket failure
    • Description/Symptoms: Coolant leaking from the intake manifold gasket, overheating, rough idle
    • Solution: Replace the intake manifold gasket
    • Estimated Cost to Fix: $500 - $900
    • Recalls: None Found

Transmission

• Five-speed manual transmission
  • Synchronizer failure
    • Description/Symptoms: Difficulty shifting gears, grinding noise when shifting
    • Solution: Replace the synchronizer
    • Estimated Cost to Fix: $400 - $800+
    • Recalls: None Found
• Five-speed automatic transmission
  • Torque converter failure
    • Description/Symptoms: Slipping gears, shuddering when shifting, no forward or reverse gears
    • Solution: Replace the torque converter
    • Estimated Cost to Fix: $1,200 - $2,000+
    • Recalls: None Found

Suspension

• Leaf spring failure
  • Description/Symptoms: Sagging rear end, uneven tire wear, clunking noise when driving over bumps
  • Solution: Replace the leaf springs
  • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found
• Shock absorber failure
  • Description/Symptoms: Rough ride, bouncing, excessive body roll
  • Solution: Replace the shock absorbers
  • Estimated Cost to Fix: $300 - $600+
    • Recalls: None Found

Electrical

• Alternator failure
  • Description/Symptoms: Dimming lights, battery not charging, difficulty starting the engine
  • Solution: Replace the alternator
  • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found
• Battery failure
  • Description/Symptoms: Engine will not start, dim lights, slow cranking
  • Solution: Replace the battery
  • Estimated Cost to Fix: $100 - $200+
    • Recalls: None Found

Exterior

• Rust on body panels
  • Description/Symptoms: Brown or red spots on the body panels, holes in the panels
  • Solution: Sand and repaint the affected areas
  • Estimated Cost to Fix: $500 - $1,500+
    • Recalls: None Found

Interior

• Dash cluster failure
  • Description/Symptoms: Gauges not working, warning lights not illuminating
  • Solution: Replace the dash cluster
  • Estimated Cost to Fix: $200 - $500+
    • Recalls: None Found
• Power window failure
  • Description/Symptoms: Windows will not open or close, clicking noise when using the switches
  • Solution: Replace the power window motor or regulator
  • Estimated Cost to Fix: $200 - $400+
    • Recalls: None Found

Summary

The 2007 Mazda B4000 is a capable and affordable pickup truck, but it has some reliability issues that can be costly to fix. The most common issues include head gasket failure, timing belt failure, intake manifold gasket failure, and rust on the body panels. If you are considering buying a used B4000, it is important to have it inspected by a qualified mechanic to assess the condition of the engine, transmission, and other major components.