How To Fix P0300 Random Misfire Codes In Your Car




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James Zivny: Random misfire can be more involved but you nailed the most common, good video

Richie Grows: Im getting the check engine light only at high speeds when i press down on the throttle and also on hills..i have this code, any ideas?

TheHeadHunter1000: Thanks scotty. I just got myself an OBD2 tester and had this code. My car didn't want to start at all. After checking the air intake, the spark plugs, and the battery. I got her to run again. But a lot of unusual squeaking from the belt went from wet water squeaking to a lot noisier. Died shortly after though. But got her running again. Still not sure what is up...

Jerry Cannon: I've learned that the spark plug holes could have moisture sitting in around them. Maybe a valve cover is leaking oil. There's a puddle of oil building up and. Creeps its way up into coil boot. Killing the fire

Jim McGettigan: Thanks Scotty. I just changed out my battery on an 08 Hemi and it seems to have taken care of the engine light/ P0300 issue. The battery tests weak under load test but seemed to have no hesitation in starting the engine. Hopefully no more scares for me while driving in Mexico’s badlands. Thanks again.

Mandy Haworth: Right on man thank you this really helped

Jack Johnson: I changed every single one of these and none fixed the problem

Philip Anthony: Thanks scotty!

edd carr: most common fault would be 1 or more coils ,

Jillian Hightower: I have a 2002 Ford escape. It has a rough idle and when I drive over 60mph it starts to shake. It shows a code p0300 and p0304. I got a tune up and that helped very little. Also had oxygen sensors replace and got a new catalytic converter and muffler. What should I do next everytime I got to a mechanic I get different answers I spent most of my money on diagnostic test alone.

Vic Ayuro: Hi just want to ask something, i do have an e46 with p0313,p0183,p0185,p0171,p0174
Codes. Car right now is hard to start dies after stepping off gas pedal. It stalls i recently change camshaft sensor intake.still no change.then i change SP 2 out 6 right now and found oil in SP cylinder number two (also burnt).might valve cover gasket leak.also the fuel filter by previous owner didnt change Fuel filter.considering also this.anyone could give me an advise? Just to add ccv hose to valve cover broke and previous owner just connect it by heater hose.considering changing new ccv (found smudge of oil inside hose). Battery is good checking via multimeter also alternator works. Thank you very much.

Bert Esty: mine misfires and has smoke after about 5 minutes of idle.
is it most likely a vacuum issue? compression is good.

Ezekiel White: I have a 99 Mitsubishi gallant 4.2 that misfires what can I check?

Liftmaster 1280: ok, I have a problem, My check engine light is on for a PO300 code. The battery is new, alternator is good, got new spark plugs and wires. What's going on? thanks

travislyonsgary: Thanks Scotty , you really know your stuff and you made it accessible to the lay person.

deepcritik: Pretty basic. But it can be almost anything. Including harnesses, computer, cracked manifold, ICM, blown head gasket etc.

Stephen Dee: I'd recommend adding a check on the distributor for terminal corrosion. Love the Scotty Kilmer Channel. Thanks for putting all these great and super-succinct videos together. They're terrific!

M Balzer: I have a question. my friend has 2002 3.4 Buick rendezvous we took accessory belt off
and the harmonic balancer may have spun without belt on it. do I have to re set timing?

Tammy Hudson: I have a 2012 dodge caravan with the engine light just took it to the mechanic new plugs replaced one ignition coil light came back on again Po300 and pooob. How many ignition coils does it have 6 cyl.?

Paul Wrenfeld: Chevy Malibu 2003 head gasket blown would that cause a po300

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