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Misfires can have several causes: 1) poor fuel mixture - carburetter or injector problem. 2) poor spark - ignition module, timing pickup, contact breaker worn, condenser breakdown. 3) valve face burned or leaking; ring broken or worn, piston scored and leaking. Items 2) and 3) are tested with a spark tester and ignition timing tester for 2and a compression tester for 3)
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After replaceing spark plugs wires and cap it still misfiring on a Chevrolet siverado?
I had this very same problem with my Chevrolet Silverado. The only thing that will cure this problem is replacing all your Oxygen Sensors and running premium fuel.
Replaced spark plug and spark plug wires on Honda civic 1999 but still misfiring?
check the gappings of your spark plugs, it must be uniform.
I changed my spark plugs on my Volvo 01 s6o and it is still misfiring Also changed coils and fuel injectors any suggestions?
vacum leak
What else could be wrong if 2 cylinders are misfiring after getting water into the motor through the intake after the spark plugs and ignition coils have been replaced and it is still misfiring?
I really hate to be the one to tell you the bad news but it is possible that you have bent some valves. Take the spark plugs out of the missing cylinders and run a compression check on those two.
Does bad spark plugs give you rough idle?
Bad spark plugs can indeed cause an engine to idle rough. If any of the spark plugs are misfiring or are not producing enough of a spark to ignite the fuel, then not only will the engine idle roughly, it will alwso waste gas. If may seem as though it is running fine when you are driving however, you still may be wasting gas and your pickup may not be as fast as it should.
Why does my 95 dodge neon still stall after replaceing fuel pump?
Did you change your fuel filter when you changed your fuel pump? I would also check for fouled spark plugs, dirty fuel injectors, and vacuum leaks.
Your 2002 Taurus is misfiring you changed all the plugs and wires but still getting the same code?
check the coil pack
Do infiniti i30 spark plugs need to be gapped?
Yes, Infiniti I30 spark plugs should be gapped according to the manufacturer's specifications. Proper gapping ensures optimal engine performance, fuel efficiency, and prevents misfiring. It's recommended to check the gap with a feeler gauge before installation, as pre-gapped plugs may still require adjustment. Always consult the vehicle's manual for the correct gap size.
ONE OF My cylinder is misfiring in a 2002 Ford Taurus?
A miss on one cylinder is caused by defective spark plug, plug wire, burnt valve, or blown head gasket. Replace all plugs and plug wires. If the miss is still there run a compression test.
Where are the spark plugs for a 1998 dodge stratus?
spark plugs are directly in center of valve cover under spark plug boots. Follow wires from coil pack and remove wire from plug. Plugs still can not be seen but can be removed with small spark plug socket and long extension.
Who owns ngk spark plugs?
at one time Honda did not sure if they still do
You change your spark plugs on your 1998 ford wind star mini van it still wont stared?
That means its not the spark plugs........Oh ya check your gas gage...
