Home TROUBLE SHOOTING WHAT IT SOUNDS LIKE Car Backfire Sound When Driving

Car Backfire Sound When Driving

PROBLEM : Backfire
WHEN : Driving
LOCATION : Engine Compartment
Priority Action Part Type Cause
1 Check Timing Belt Slipped or Broken Timing Belt.
2 Check Timing Chain Slipped Timing Chain.
3 Check Timing Set Slipped Timing Chain or Worn Timing Gear(s).
4 Check Fuel Injector Dirty or Worn Fuel Injectors, or Vacuum Leak in Fuel Injection System.
5 Check Carburetor Incorrect Carburetor Adjustment, or Vacuum Leak at Carburetor.
6 Check NEEDLE Seat Dirty, Worn, or Damaged Carburetor NEEDLE and Seat.
7 Check Timing Specification Incorrect Ignition Timing.
8 Check PCV Valve Clogged Emission System.
9 Check Wire Set Worn, Damaged or Faulty Spark Plug Wire(s).
10 Check Distributor Cap Distributor Cap Cracked or Burned.
11 Check Spark Plug Fouled, Damaged, or Broken Spark Plug(s).
12 Check Intake Manifold Gasket Leaking, Worn, or Damaged Intake Manifold Gasket.
13 Check Crankshaft Gear Worn Timing Gear(s).
14 Check Camshaft Gear Worn Timing Gear(s).
15 Check Distributor Cap and Rotor Kit Distributor Cap Cracked or Burned.
16 Check Valve Burned, Worn, or Sticking Exhaust Valves.
17 Check Camshaft Worn Camshaft LOBE(s).
18 Check Valve Lifter Worn Valve Lifter(s).
19 Check Belt Incorrectly Routed, Adjusted (Tensioned), Missing or Worn Drive Belt(s).
20 Check Alternator Low or No Voltage OUTPUT From Alternator/Voltage Regulator.
21 Check Voltage Regulator Faulty, Shorted or Incorrectly Connected Voltage Regulator.
22 Check Relay – Charge Lamp at Damaged or Faulty Charging Relay.

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