Car Backfires?

Symptom: Backfire .
When: Accelerating .
Where: Engine Compartment.

If you notice this problem in your car, truck or jeep while Acceleration, then check out this possibilities mentioned below:---

Priority	Action	Part Type	Cause
1	Inspect	Timing Belt	Slipped or Broken Timing Belt.
2	Inspect	Timing Chain	SlipPED Timing Chain.
3	Inspect	Timing Set	SlipPED Timing Chain or Worn Timing Gear(s).
4	Inspect	Timing Specification	Incorrect Ignition Timing.
5	Inspect	Carburetor Power Valve	Damaged or Faulty Carburetor Power Valve.
6	Inspect	Carburetor	Worn, Faulty, Damaged, Dirty, Improperly Adjusted and/or Functioning Carburetor.
7	Inspect	Accelerator Pump Diaphragm	Damaged or Faulty Accelerator Pump Diaphragm (Carburetor).
8	Inspect	Wireset	Worn, Damaged, Faulty Wireset or Ends Are Not Completely Connected and/or Are ARCING To Ground.
10	Inspect	Distributor Cap	Loose or Cracked Distributor Cap.
11	Inspect	Distributor	Worn, Loose or Incorrectly Installed Distributor.
12	Inspect	Point Gap	Incorrect Point Gap Setting.
13	Inspect	Point Set	Burned, Worn or Incorrectly Set Ignition Points.
14	Inspect	Spark Plug	Fouled, Damaged, or Broken Spark Plug(s).
15	Inspect	Spark Plug Gap	Incorrectly Gapped or Fouled Spark Plug(s).
16	Inspect	Firing Order	Spark Plug Wire(s) Not Connected in Correct Firing Order Sequence.
17	Inspect	Point Dwell	Point Dwell Not Within Specified Range.
18	Inspect	Distributor Cap and Rotor Kit	Loose or Cracked Distributor Cap.
19	Inspect	PCV Valve	Clogged Emission System.
20	Inspect	Breather Filter	Plugged Breather Filter.
26	Inspect	Coil - Ignition	Faulty Ignition Coil.

This troubleshooting will help.