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What Is Wrong When My Car Backfires?
The causes of most engine backfires fall into two categories: gases explosively expelled through the intake manifold, or explosions that take place within the exhaust system. Backfires through the intake are generally related to problems with ignition... More »
Source: www.ehow.com

en.wikipedia.org/wiki/Back-fire

Exhaust system backfires occur in engines that have an ... engine may backfire if an intake leak is present (causing the engine to run ...

www.yourmechanic.com/article/what-causes-a-car-to-backfire

Dec 2, 2015 ... When an engine runs too rich, there is too much fuel to create an explosive, fast- burning flame. ... Specifically, delayed timing causes a backfire.

www.2carpros.com/articles/engine-backfires-while-running

Jan 27, 2017 ... What Causes a Backfire? When your engine back-fires it can do so in one of two ways. First and the most common way is when the engine is ...

www.briggsandstratton.com/na/en_us/support/faqs/browse/engine-backfire-afterfire.html

Understand what causes backfire and afterfire in your small engines, as well as simple fixes that could repair any loud noises coming from your engine.

www.badasscars.com/index.cfm/page/ptype=product/product_id=95/prd95.htm

We usually refer to an exhaust backfire as a "backfire", and backfiring through the carb as "spitting" or "coughing". "Backfiring" is usually caused by a spark plug ...

www.auto-repair-help.com/auto_diagnostics/diagnose_engine_backfires.php

The engine backfires. The symptom may be more frequent on deceleration when the accelerator pedal is released from high engine speeds. USUAL CAUSE

www.rcramer.com/shop/backfire.html

Backfiring is in no way related to fuel and a properly tuned engine should not ... It is commonly caused by ignition of the air/fuel mixture while it is still in the intake ...

www.reference.com/vehicles/causes-engine-backfire-82af3fcc49dfb625

Engine backfire is caused by an imbalance in the air-to-fuel ratio of the vehicle. Backfires occur in one of two places. A backfire in the intake manifold is caused ...