What could be the problem?Check the ignition timing, it may be too retarded. What can cause this?Make sure the spark plug wires are properly connected, and in the firing order. I checked spark plugs and wires and replaced the fuel pump and filter, and none of that helped. But a common problem is a dirty MAF sensor. A pending code can give you some clues about the problem.I have a 1999 Jeep Grand Cherokee, I replaced the fuel filter but now the backfiring is worse, what should I do?The problem could be in the fuel system. The mixture is too lean. If the exhaust valve lobe becomes worn and loses its lift the fire from the exhaust gases are still left in the cylinder which is then released into the intake manifold once the intake valve opens. Sometimes she stutters and then backfires when I first step on the gas and sometimes at about 40 mph. It gets worse if try to hold at that speed. The extra oxygen may come through a leak in the exhaust manifold gasket, an exhaust pipe sealing ring, or a damaged pipe.Also, some vehicles models are equipped with an air injection system.
If no warning lights are on continue down this guide. What could be the problem?It seems like a faulty sensor's coil. What could it be?It is possible the tensioner, or the alternator is the cause of the noise. Recently my van has cut off going down the road but started back after a few minutes of cranking it. If you haven't done yet, try downloading trouble codes. The hose is available in the "HELP" section at any Auto Parts store.
Too many backyard mechanics with too many choices. So paying attention to regular maintenance items in key systems like fuel, ignition and emissions can go a long way in keeping your vehicle running in top shape. I've had the valves, cam, timing chain, distributor, and wires changed. It is difficult to think of because most people think of a exhaust system to be under constant pressure but this is not true. Also, check the ignition system.
Download trouble codes in case the computer has a pending trouble code stored. As of February 14th, it was running good. What could be the problem?Check the timing belt, ignition timing and fuel pressure.My 1997 Mazda 626 DX 2.0, automatic, 4 cylinder has been backfiring and won't start.
Several faults can cause this problem, for example a clogged catalytic converter. The problem could be in a number of systems, specially the fuel or ignition system.
kindly help me with any cluesScan for trouble codes, even if you don't see the check engine light on.Also, check fuel pressure. Some will check it without cost.My car is a Nissan Almera.
I now have an intermittent backfire at high RPM. The engine computer uses this and other sensors to compute the amount of fuel to inject into the engine according to operating conditions. Car owners usually forget to check the ignition system at the recommended manufacturer schedule.If necessary, consult your car owner's manual or repair manual.Even if your Check Engine Light is not lit on your instrument panel, scan for possible pending diagnostic trouble codes that can guide you in your diagnostic.Backfiring problems can also originate in the fuel system.Usually, when an injector clogs or wears out, causing the air-fuel mixture to lean, the combustion process weakens and fails to properly burn the fuel. What should I do?If you didn't change the distributor cap, check it for cracks, also check or change the spark plug wires. This will make sense, if the engine starts and backfires. HubPagesCopyright © 2020 HubPages Inc. and respective owners.As a user in the EEA, your approval is needed on a few things.