Exhaust system backfires occur in engines that have an emission system malfunction, like an air injection system diverter valve problem, an exhaust leak, or when the catalytic converter has been removed. In some high-performance vehicles, when a driver shifts up and lets off the accelerator, the engine has a moment of running rich. This causes an incomplete burn which causes the fumes to explode in the exhaust system along with an audible clacking sound. However this condition is a result of working smog equipment, and is unlikely to cause any damage.
A fuel injected engine may backfire if an intake leak is present (causing the engine to run lean), or a fuel injection component such as an air-flow sensor is defective.
Common causes of backfires are:
Courtesy of: Wiki
I dont know that much about cars, but when my friends Mustang backfired, there was a timing issue in his engine which also affected his speedometer! But his car is a 1980! LOL! So I would get it looked at!
The keyless lock might stop working on your Mitsubishi Lancer because the battery is dead or because there is a problem with the wiring. You might also have a problem if the brain or computer of the vehicle is damaged.
you tell it to stop
The best answer for this is: Get a tune-up.
If it is backfiring the timing is set incorrectly or the spark plug wires are not connected in the correct order.
Check your coils on the sparkplugs
For noisy hydrolic lifters (eg Mitsubishi etc) Get some : PRO-MA MBL8 OIL ADDITIVEThis stuff works great and keeps them quiet for about 5000km in my turbo lancer
Rev the engine six or seven times before coming to a complete stop. Rev it all the way to the edge every time you stop.
wen I stop at a red light my Mitsubishi galant sound like it is try to stop running
well if its a 2 stroke it needs new reeds if not, your timing is prolly off a bit
More than likely you have a exhaust leak.Check the headpipe seal
Backfiring it normally caused by a car that is very badly out of time. It can also be caused by the spark plug wires being connected incorrectly. Switching to a higher octane will not help at all.
I had the same problem on my 2005 Outlander. Oil pressure light turned on erratically when the motor was hot and I was on idle. Mitsubishi repaired it on guarantee, the oil pressure switch was defective, they changed it. JJ