Diagnose and Fix Engine Misfires - Flashing Check Engine Light , Rough Running Idle , Low Power

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Is your car idling rough or experiencing loss of power? Are you getting worse gas milage or having a harder time getting up hills? In this video Josh takes you step by step through the process of diagnosing and fixing common engine misfire issues.
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Merch:

[judgedrew]

If only all car youtube videos were as good as this! Simple and to the point.

[jamiebrock]

I have a 2006 chevy Impala and it is doing funky things. I recently had my oil leak fixed and IT'S LEAKING After 1 month of going good. Then, while idling it idles rough and sometimes cuts out while driving. Not cutting out as in the engine shuts down. Just cuts out very lightly where it causes a revving in and out feeling. Also does this while on cruise control. Going to parts store tomorrow to have codes read.

I do a high mileage oil change every 3 months, meaning before I'm suppose to.
I also do a transmission flush once each year.
I recently changed the cabin air filter, engine, spark plugs and wires myself a couple weeks ago.

I'm a female and trying to save money. 🤷‍♀️😂😬

[generalnorth]

I got a 2008 Nissan Altima and This Was The Exact Problem that was Wrong with my Car My Engine Light was Flashing On and Off, & I did think it was something major but I see it’s nothing but the SPARK PLUGS, Thanks For The VIDEO

[shawnlawrence]

Great video, just want to point out that depending on what type of vehicle you have, you may want to check the manual before disconnecting your battery to clear the codes. with some newer vehicles it can cause problems.

[reeganbruno]

I had an intermittent CEL, it would come up when idling and start flashing, then would be solid after driving for a few seconds, just did the spark plugs but i checked my spark plug wires, one was sort of loose so it would vibrate off a little, so i just wiggled it a bit and pushed it down harder and its been fine for a bit

[arjansingh]

U are awesome bro u saved my car and my money....god bless u.

[haylocktransport]

Your correct ! Spark plugs . That's what was wrong with my 5.3

[mkuc]

Nice! Changed the plugs, coils, disconnected the battery, so far so good. Now its chugging funny but its one less problem.

[bradkay]

I have that going on too. Thanks for the help!

[enjentertainment]

Thank you sir! This video was so helpful for me! 🙏🏼 god bless you!

[brendagordon]

My engine lights been on about a month now, it flashes sometime but still has power going up hills....it shakes a bit but doesn't affect the driving. Could it just need a service as it has gone over by 1, 500klms

[DougHinVA]

A system programmer I once new would say... "Don't assume it's complicated... the problem is probably simple or stupid... ". I went through this problem with my 20 year old Corolla.... I replaced the plugs with good platinum ones and that's it. About $30 for them and wipe the 'boots' clean of any oil and blow the spark plug recesses empty BEFORE removing the plugs (dust, dirt get into the recesses at the 4 plugs). If you are handy, the throttle body and IAC valve can be cleaned after removal. A chore... ? Yes, but a shop will want a few hundred to do it...

[twootters]

My 2001 Lexus was running great one minute then felt like I lost half the engine. Already knew I was dropping cylinders. Went to a place, got the codes read and it's # 3 and #4 are misfiring. I'm replacing all 6 coils and plugs. I've owned this for a year but I know the guy before did little to know maintenance. When I bought it I changed the oil right away. It was water thin and coal black and smelled horrible. Cabin filter had never been replaced. Just things like this. I expect to see rusted, nasty old spark plugs. Just hope they aren't seized in.

[HR-wdcw]

A fast way for checking ignition coils is to pull them (one at a time) while the engine is running and see if the engine changes sound or starts to misfire (don't do this for long though) but it's a quick way to see if a coil is working (be careful because a good coil will continue to send a spark so keep it away from anything flammable and really you only need ot pull them up slightly -- enough so they can't fire the spark plug or transfer the spark to the plug). If you suspect one is bad, you can sometimes swap them and see if the misfire follows the coil or changes cylinders when coils are moved around.

[invade_]

IDLE AIR CONTROL (IAC) can cause rough idle, happened to me, easy to fix

[carlac]

Thank This single Mom of a super kid in a school farther away (magnet school) that he loves, thanks you!!!!
Subscribed!

[raulvilla]

Thanks for this man! Simple and easy. Subscribed!!!

[russelkantun]

Muchas gracias por el video muy bueno!!!

[fridapena]

Thank you so very Much. This Video Help me Alot

[ViSion.]

Ok question, hoping I get a respond 2007 king ranch f150 had a cylinder 5 misfire and a catalytic converter code, check engine, I repaired the cylinder 5 misfire, and the check engine goes off.. now the truck runs rougher in idle.. please give me something g