Chevrolet Silverado Code P0442, P0300; EVAP system small leak/ Cylinder Misfire diagnosis

[@tysoncurrie7745]

Great video, I love the details you show with not skipping a step and exactly explaining what the process is from being to ending. Very detailed, thank you very much for this video.

[@KITS_Auto_and_Truck_Repair]

Tyson Currie My Pleasure!! Thanks!

[@stevenpalmer8140]

So happy I found this channel it's helped me find that my truck has multiple burnt intake valve an all this 5 days before a 5000km road trip I tried simple cheap things before thowing major parts at it and with the simple 100$ test at a local shop for the leak test we found 3 burn intake cables an 2 burned exhaust valves truck had loads of power just rough idle an smoke apon starts so glad I seen this before wasteing thousands in new parts for a internal problem

[@KITS_Auto_and_Truck_Repair]

Steven Palmer I'm glad to hear that the video helped you make the right decision and saved you money, that's awesome thanks for letting me know!!

[@Polyester_Avalanche]

Your intelligence sets you apart from a lot of other mechanics. Great video. It was cool seeing how much insight you have with that scan tool.

[@KITS_Auto_and_Truck_Repair]

Polyester Avalanche Thank you!

[@rayp.454]

Very thorough diag Deo. Thanks for explaining the Evap system. You are a very good teacher.

[@KITS_Auto_and_Truck_Repair]

@rayp.454 Thank you!

[@vernonluther684]

Awesome video. Going into detail on the diagnoses of the problem was very helpful, vs. just saying whats wrong and fixing it. Showing the computer screen, graphs, and NUMBERS in real time are great visual learning aids.

[@KITS_Auto_and_Truck_Repair]

Vernon Luther Thank you!

[@billmitchell4588]

I'm glad I found your channel. Your presentation is spot on. The only negative is lack of ability to read scanner screen at times and lack of focus at times.

[@KITS_Auto_and_Truck_Repair]

Bill Mitchell Thank you! I will work on that!

[@scottplivelich8567]

First time watching this gentleman! One of the best I've seen. Clear, to the point. No guessing. I will be watching all.....

[@KITS_Auto_and_Truck_Repair]

Scott Plivelich Thank you!

[@nicholascastillo9728]

Thanks for the detailed explanation! I have the exact trouble codes this truck had on my ‘03 Suburban. Fuel trim on mine are also within spec I’m going to try and tackle these over the weekend. I’m just a budget dad trying to save money learning from guys like you on KZbin.

[@KITS_Auto_and_Truck_Repair]

Nicholas Castillo My Pleasure!! Good Luck with your Project!!

[@DDGTAO]

I really enjoyed this video... Thank you for making it! I am having a similar issue with my 04 Silverado and found this while researching "how to" videos. Excellent job!

[@KITS_Auto_and_Truck_Repair]

DDGTAO My Pleasure!! Thanks

[@jeffreyherbert91]

I like the way you always follow your set process .....good explanations of what you are doing and why you are doing it and good review at the end I must set some time aside to watch your previous videos too!!

[@KITS_Auto_and_Truck_Repair]

jeffrey herbert thank you, I appreciate you!!!

[@RosaMaria-iu4se]

I like k diagnostic videos, they are very explainable, thanks.

[@KITS_Auto_and_Truck_Repair]

Rosa Maria My Pleasure! Thanks

[@Bigmatt60]

I was wondering about my gas mileage too thanks a lot. Almost went to shop and definitely can’t afford it

[@KITS_Auto_and_Truck_Repair]

@Bigmatt60 My Pleasure!

[@johnblystone8781]

Very thorough diagnosis and explanation!!

[@KITS_Auto_and_Truck_Repair]

John Blystone Thank you!

[@devinbanks3448]

I know this is a old video but beautiful explanation. Thank you for your help

[@KITS_Auto_and_Truck_Repair]

@devinbanks3448 My Pleasure!

[@kenward2005]

Kit. Awesome videos. Why is the p0300 so tough. I have thrown everything in this truck I put a new mass air flow. Then a week later now it says bad mass airflow again. 1357 when I undo the coil pack no change at all

[@KITS_Auto_and_Truck_Repair]

@kenward2005 Thanks! you should have it diagnosed, did you test the MAF sensor before replacing it!

[@kaaraa-mardha1977]

Hi there 👋, thanks for your educational videos. My question is, how do I test power and ground for purge Valve Solenoid before replacing it, because I don't have an expensive diagnostics machine please? I tested ohms and continuity for the solenoid and it's ok, but no voltage and ground

[@KITS_Auto_and_Truck_Repair]

@kaaraa-mardha1977 you can use a test light to test power and ground!

[@josephsawicki9335]

Great Trouble shooting, Very Professional Thank You.

[@KITS_Auto_and_Truck_Repair]

@josephsawicki9335 My Pleasure!

[@GeneCenora]

I’m having a p0300 and a p0449 your a excellent teacher , keep making your videos

[@KITS_Auto_and_Truck_Repair]

@user-st6ij4go3d Thank you!

[@mmikeify]

Thank you so much. you have a great teaching way. love this diagnostic video. I have a 2010 GMC Sierra 5.3 with the FMS P0300 Won't g into Close Loop at all. MIL on and Flashing, Suspecting collapse Lifter in Bank 1 Cyl. 7

[@KITS_Auto_and_Truck_Repair]

mmikeify My Pleasure! Thanks!

[@johnniegregory2666]

I have a 97 Tahoe and a p0300 code trying to figure out what it could be I also looked at your video to see if I can pinpoint the problem but as you explained it can be anything but I do nothing sometimes it happens sometimes it doesn't it's in and out I'm getting a popping noise from the tail pipe when driving slow and sometimes when I speed up as well just been trying to figure out what it is thank you

[@KITS_Auto_and_Truck_Repair]

Johnnie Gregory you might have a fuel delivery problem

[@jasonmontes2016]

youre great buddy! Keep up the good work. I love the tech/functional details you give.

[@KITS_Auto_and_Truck_Repair]

Jason Montes Thank you!

[@donshotrodgarage1717]

Great video Man! Excellent diagnostic work👍

[@KITS_Auto_and_Truck_Repair]

Don's Hot Rod Garage Thank you!

[@666norouz]

great explanation , however at the end of the repair I saw ABS light stayed on , on the dashboard . Doesn't the customer want it fix ?

[@KITS_Auto_and_Truck_Repair]

Rebel No, it only hire me for engine related issues! but I did let him know though!

[@alex6261971]

awesome video , great work.. easy to understand.. thank you ... keep up the awesome work

[@KITS_Auto_and_Truck_Repair]

@alex6261971 Thank you!

[@Usmanthemecano]

Great video frérot!! Q. When do you need to use high amp clamp? Can you do a video showing how to test various components' health with the scope ( alternator, starter, fuel pump, blower motor)... Please do a complete explanation from the way to setup the scope onward...🙂

[@KITS_Auto_and_Truck_Repair]

Usman The Mechanic I will do a series of videos on how to use a scope to test electronic components, I will upload them as soon as I can, stay tuned bro...

[@brianmurphy4866]

U the man , what a great detailed video everything covered , right on, excellent job

[@KITS_Auto_and_Truck_Repair]

Brian Murphy Thank you!!!

[@81crashcourse]

A real mechanic.

[@KITS_Auto_and_Truck_Repair]

@81crashcourse Thank you!

[@edlozano8694]

Excellent video. Thank you Sir.

[@KITS_Auto_and_Truck_Repair]

@edlozano8694 My Pleasure!

[@waynemorris6099]

You're dam good at what you do bro,make millions.

[@KITS_Auto_and_Truck_Repair]

Wayne Morris Thank you Bro!!

[@elgarfio4186]

As always, great video and well explained, 👍 thanks again for shelves your knowledge. God bless

[@KITS_Auto_and_Truck_Repair]

El Garfio My Pleasure!! Thanks!

[@shadetree6981]

Very well explained. Thank you!!

[@KITS_Auto_and_Truck_Repair]

@shadetree6981 My Pleasure!

[@505fastlife6]

I noticed you didn't open the purge valve for the smoke test. Does the service port bypass this?

[@KITS_Auto_and_Truck_Repair]

@505fastlife6 the service port is between the purge valve and fuel tank, no need to remove the purge valve!

[@leomcalla29]

Really great video I accidentally came across your channel the other day, love your content. But you said something that stood out to me , based on the statement here's my question. If the command was 0% which the actual data was showing 10% how can you tell that the solenoid was open based of the actual data when the solenoid doesn't have a position sensor?

[@KITS_Auto_and_Truck_Repair]

leo That's a great question the ECM kind of senses the opening position of the solenoid based on the amount of the current flow on the circuit!! so the ECM commands the solenoid and also watches the current flow to determine the position of the solenoid!!

[@charleycharles6757]

Hey men! the way you use that scan tool is like butter on a hot knife, it is so smooth! is that snap on scanner? do you have any recommendation on a diy scanner for a job like that? thanks

[@KITS_Auto_and_Truck_Repair]

charley charles My Pleasure! for my DIY Friends I recommend getting a cheap Autel scanner!

[@artmichel5572]

Awesome! It is amazing how much we learn when one has the right teacher. Your video was very well explained to where I was able to keep up with you. I realize that I don’t know your name but thank you sir. If i may throw a question at you: Concerning TPMS on 09 Silverado, check left/back sensor comes on/off in cold weather then suddenly it is out and check front/right light comes on ..nothing else and tire pressure is checked every other day. Is there a “central” point to where I can check this?

[@KITS_Auto_and_Truck_Repair]

Art Michel you probably have a slow leak!!

[@Hoss5678]

Very well done, Sir!!!!

[@KITS_Auto_and_Truck_Repair]

MotorHoss Thank you!

[@duanedonaldson2262]

Hello I believe the Purge Valve could have been a problem, I do not believe that the scan tool can show it stuck at 10%, the solenoid is a 2 wire component, it is either on or off, the solenoid is controlled by the ECM via a PWM voltage signal opening up the solenoid a little or a lot, there is no feedback wire on the solenoid to show that it is actually open 10% or 80%. I believe in this case that the ECM is at fault reporting 10% when it is commanded off. To prove if the ECM is actually commanding a 10% PWM signal you would need a scope on the control side showing a PWM signal, if there is no signal voltage and the scan tool is showing 10%, then the problem is a bad calculation or logic data misrepresentation from the ECM to the scan tool. do you agree?

[@KITS_Auto_and_Truck_Repair]

Duane Donaldson I agree and Thanks for your input!!

[@GeneG-wk2mz]

I have this code and 455 on 4.8l Chevy express van and the stability track light is on any advice ?

[@KITS_Auto_and_Truck_Repair]

@GeneG-wk2mz check your evap system or have a good mechanic diagnose it for you!

[@sulemanhabib6349]

We proud of u, long live, K D. Habib Auto from Ghana Accra

[@KITS_Auto_and_Truck_Repair]

Suleman Habib thank you bro. I appreciate it

[@eringabbybennett]

Wondering if the stuck purge valve would act as a vacuum leak and cause the misfires? Maybe not

[@KITS_Auto_and_Truck_Repair]

aaron bennett absolutely yes!

[@roberthall5879]

Very informative vid! Did you realize there was practically no oil pressure?

[@KITS_Auto_and_Truck_Repair]

robert hall Thanks!! no there was oil pressure, the gauge was kind of acting up!!

[@2657alicia]

we don't need to be test , rear sensor from EVAP vacum box filter, because sometime it fails too.is its not how we test it sensor? tanks man you're very good.

[@KITS_Auto_and_Truck_Repair]

Eduardo Tejeda Thank you!!

[@tavaners712]

Thanks for the great video !! Gracias

[@KITS_Auto_and_Truck_Repair]

@tavaners712 My Pleasure!

[@heavyeagle2371]

Very informative video. Thank you.

[@KITS_Auto_and_Truck_Repair]

Heavy Eagle My Pleasure!!

[@GeneCenora]

Awesome video

[@KITS_Auto_and_Truck_Repair]

@user-st6ij4go3d Thank you!

[@oscarvmartinez7500]

Very good Sir....the only part may show to the beginners,it's pinchin the hoose or the way to closse the sistem vacuum.......... Thanks. im having a code in my Ford E 350 van 2003 but it says P0453 Evaporative emission Sistem Pressure sensor/Switch High input. May give me par of You knowledge to have an idea....Thanks .I wish you mecanic Shop near to Maryland....so you can take kare of it.... Thanks a gain!!!!

[@KITS_Auto_and_Truck_Repair]

Oscar V Martinez My Pleasure!

[@mrm4155]

Man, great job. What scanner do you use?

[@KITS_Auto_and_Truck_Repair]

Michael Morris Thanks I used the snapon zeus scanner in this video!

[@chevybob9836]

Thank you for a great video! Could a bad purge valve cause a misfire on my '04 Silverado 4.8L ?

[@KITS_Auto_and_Truck_Repair]

chevybob My Pleasure!! yes a defective purge valve can sometimes cause a misfire!!

[@devinbanks3448]

Like I said. I know this video is old but please tell me what computer you have. I'm still running on an old snap on ethos

[@KITS_Auto_and_Truck_Repair]

@devinbanks3448 I used my Snapon Zeus scanner in this video!

[@zackbullock8198]

More knowledge delivery to me, Thanks

[@KITS_Auto_and_Truck_Repair]

Zack Bullock My Pleasure!

[@GabrielEbenezer-ko2hp]

Please sir I don't understand the fuel treatment numbers how it should be please tell me about it sir🙏

[@KITS_Auto_and_Truck_Repair]

@GabrielEbenezer-ko2hp sorry I didn't understand your question

[@wintermagebarthow8481]

I just discovered you channel. Thanks. I have a 2010 Silverado 4.3V6. I have the P0302, P0303, P0300 and P0446..Service Stabilitrac, Service Abs .All at once before the engine begins to sputter and power down. I've replaced spark plugs. But I was told it's the Alternator? What do I try next? Wires then what?

[@KITS_Auto_and_Truck_Repair]

Wintermage Barthow disconnect the alternator wires and see what happens!!

[@wintermagebarthow8481]

@@KITS_Auto_and_Truck_Repair Thanks for responding. Ok ill try to disconnect wires for the alternator...for how long? Is this like pulling the battery on your phone for a reset? Merry Christmas!

[@KITS_Auto_and_Truck_Repair]

@@wintermagebarthow8481 if the lights on the dash go off after disconnecting the alternator then your problem is the alternator!!

[@wintermagebarthow8481]

@@KITS_Auto_and_Truck_Repair Thanks. A million

[@KITS_Auto_and_Truck_Repair]

@@wintermagebarthow8481 My Pleasure!!

[@jorgeramblas6216]

Hey we have the same scanner but I was doing the fuel trim b1 and b2 on s2 is moving in a straight line staying on the same number is that good ?

[@KITS_Auto_and_Truck_Repair]

Jorge Ramblas Sorry! I didn't understand your question!

[@aweebunny]

Great detail. Thanks.

[@KITS_Auto_and_Truck_Repair]

Ray Mitchell My Pleasure!!

[@joannaszymanska1322]

Very thorough.

[@KITS_Auto_and_Truck_Repair]

Joanna Szymanska Thank you!!

[@orlandomolina6214]

Great vid

[@KITS_Auto_and_Truck_Repair]

@orlandomolina6214 Thank you!

[@johns3153]

I have PO442 and replaced the Evap Purge Valve Solenoid and put a new gas cap but now smell gas at the end of the vehicle when it's not running but after starting and running awille it goes away then returned after cooled down

[@KITS_Auto_and_Truck_Repair]

John S check Evap tubing, Vent solenoid or fuel pump gasket!

[@johns3153]

@@KITS_Auto_and_Truck_Repair thanks

[@KITS_Auto_and_Truck_Repair]

@@johns3153 My Pleasure!!

[@TomMack530]

Hey I have been looking for the your video on P0451 ? I can’t find it

[@KITS_Auto_and_Truck_Repair]

Tom Mack That's odd!

[@TomMack530]

@@KITS_Auto_and_Truck_Repair can you send me the link to it ? Thanks bro 😎

[@alangaudry724]

Great video of knowledge, I have learned from this

[@KITS_Auto_and_Truck_Repair]

Alan Gaudry thank you, I'm glad the video was helpful...

[@Ebreezywafflecakez]

Hey got a question. So what if you are getting postive high fuel trim numbers for Long fuel trim1 and Long fuel trim2 what does that mean?

[@KITS_Auto_and_Truck_Repair]

Erica Bm high positive fuel trim numbers can be caused by a vacuum leak, dirty mass air flow sensor or Low fuel pressure... check these things one by one and you'll find your problem!

[@Ebreezywafflecakez]

@@KITS_Auto_and_Truck_Repair what is the normal range for the fuel pressure on a 2002 Chevrolet Suburban? What is the best way to find a vacuum leak?

[@KITS_Auto_and_Truck_Repair]

@@Ebreezywafflecakez your fuel pressure should be between 55 ans 65PSI, you need a smoke machine to find a vacuum leak or you can spray water around the intake... Good Luck!!!

[@charlessingletaryiii331]

What type of scan tool do you use

[@KITS_Auto_and_Truck_Repair]

Charles Singletary III I used a snapon zeus scanner in this video!

[@RealStraightTruthBroadcast]

You are a excellent diagnostic guy. I need you at my shop. how can i get in touch with you with for tips?

[@KITS_Auto_and_Truck_Repair]

Real Straight Truth Broadcast you can email me at [e-mail] and then we'll go from there!!

[@cesartoledo5621]

Nice scan tool Deo…;)

[@KITS_Auto_and_Truck_Repair]

Cesar Toledo Thank you!!

[@kaylamarie8309]

Great video..as always

[@KITS_Auto_and_Truck_Repair]

Kayla Marie Thank you!!!

[@kaylamarie8309]

@@KITS_Auto_and_Truck_Repair My pleasure 🙂

[@FabiusMaximus1000]

Good video! I verified that my evap purge valve was bad, it would not hold a vacuum. I replaced it with a new one that I tested to be good. The code P0442 came back! I have also replaced the vent valve. I have replaced the gas cap within the last year, not that it means it's good... Do you have any ideas?

[@KITS_Auto_and_Truck_Repair]

Dan H after all the parts that you replaced, I'm assuming the parts you installed are good quality parts, the problem is probably the fuel tank pressure sensor sending a skewed signal to the computer...

[@FabiusMaximus1000]

@@KITS_Auto_and_Truck_Repair That also was replaced when I put in a new Delphi fuel pump. I will see if the OBD reader I have has the ability to monitor tank pressure. I should also mention that this mostly happens when it is cooler outside. I live in AZ and when it's hot in the summer the code does not come back. When it cools off in the winter the code will set shortly after the truck warms up. Thanks for your help. I am impressed by your videos.

[@KITS_Auto_and_Truck_Repair]

@@FabiusMaximus1000 that's weird, you should check the wiring!!

[@katdaddykd6908]

Its can be a bad part that you bought

[@bartscave]

Excellent video! Where’s your shop?

[@KITS_Auto_and_Truck_Repair]

Bart Young Thank you!! our shop is in Dickerson MD

[@gokukillz9068]

Hey I have the same truck same issue my check engine light is on I purchased a new evap soilenoid and a gas cap I disconnected the battery the check engine light is on still. What do you recommend? Will it pass smog?

[@KITS_Auto_and_Truck_Repair]

Goku Killz what codes are you getting?

[@gokukillz9068]

@@KITS_Auto_and_Truck_Repair pO442

[@KITS_Auto_and_Truck_Repair]

@@gokukillz9068 check your tank pressure sensor!!

[@TigerHoover]

Thanks for your video. What diagnostic tool were you using?

[@KITS_Auto_and_Truck_Repair]

Tiger Hoover I'm using the snapon Zeus

[@TigerHoover]

@@KITS_Auto_and_Truck_Repair Thanks again buddy!

[@KITS_Auto_and_Truck_Repair]

@@TigerHoover My Pleasure!!!

[@nicolethepatriotmom9534]

I have a P0300 code on 2006 Silverado still idles smooth. Is it safe to drive it 3 miles to my mechanic?

[@KITS_Auto_and_Truck_Repair]

Nicole The Patriot Mom yes you should be fine!!

[@banshee100]

man i need you to look at my 5.3 has po300 pulling trailer new parts remain motor new heads checked by machine shop knock sensors new intake manifild compression test good fuel pump regulator plugs wires and coils injectors are new also catalytic converters are brand new ni cylinder is below 150 on compression test, im at lost with it ,setting at the second shop for diagnoses

[@KITS_Auto_and_Truck_Repair]

Hellcat channel I'm sorry to hear about what you're going through with your truck. I'm in Dickerson MD

[@doubleya215]

What are your fuel trims? What do your o2 sensors look like in closed loop? How's your fuel pressure? Are the spark plugs oem and in good shape and gapped correctly? Lots of little things to try that cost nothing. How does the truck run cold while in open loop?

[@banshee100]

@@doubleya215 did you even read

[@doubleya215]

@@banshee100 I read very well.

[@doubleya215]

@@banshee100 not seeing what I didn't read? Everything I suggested were not things that were listed.

[@brianmurphy4866]

I bought a smoke machine, how do I use this tool, I can’t find a good video , thanks

[@KITS_Auto_and_Truck_Repair]

Brian Murphy scannerdanner has good videos on how to use a smoke machine... you should check him out. In this video I explained a little bit about how to use the smoke machine, but I will be making videos about how to use a smoke machine in the near future.

[@elguerojm]

Where can I buy the scanner tool??

[@KITS_Auto_and_Truck_Repair]

Mr Jbandz you can get this scan tool from Snapon, Get their phone number online and they will answer all the questions you might have!

[@TomMack530]

i have the P0300 code bank 1 of 1, i am not getting code P0442 ,But I am smelling gas. but its not leaking anywhere thank god , what could it be Please help

[@KITS_Auto_and_Truck_Repair]

Tom Mack a P0300 code can be caused by so many things! check your spark plugs and ignition coils, or you may have a leaking injector etc... what are your fuel trim numbers?

[@TomMack530]

@@KITS_Auto_and_Truck_Repair I don’t know what the numbers are, the gas smell just started a couple days ago, I am disabled so I don’t have much money to take it in, I have new spark plugs I just need to get the wires, why does it say back 1/1 ??

[@KITS_Auto_and_Truck_Repair]

@@TomMack530 you shouldn't keep replacing parts on it! you need to get to the bottom of the problem before replacing anything!

[@aymenmohamed1134]

Awesom👍🌷🌷

[@KITS_Auto_and_Truck_Repair]

Aymen Mohamed Thank you!

[@GeneCenora]

What area or state are you located??

[@KITS_Auto_and_Truck_Repair]

@user-st6ij4go3d I'm located in Dickerson MD, you can email me at [e-mail] for shop info!

[@frankjohn4302]

Good video

[@wsnxumalo6707]

Ever ready machanic. South Africa

[@KITS_Auto_and_Truck_Repair]

@wsnxumalo6707 Good!

[@karmaRinRinTin]

What obd scan tool do you use?

[@KITS_Auto_and_Truck_Repair]

Bobby Pendergrast I'm using the Snapon Zeus Scan Tool!

[@martinarrieta248]

Grasias

[@KITS_Auto_and_Truck_Repair]

Martin Arrieta My Pleasure!

[@paulafrancis6996]

Hi bro so i have a 1500 Chevrolet and it's miss fishing

[@KITS_Auto_and_Truck_Repair]

Paul A Francis what code are you getting?

[@GeneG-wk2mz]

I don’t have the p300

[@KITS_Auto_and_Truck_Repair]

@GeneG-wk2mz ah ok!

[@Bingo551]

I have a 1998 chevy ck1500 v6 4.3 wt. And it has a po300 random clyrs misfire..and the fuel trims are now 25 on ALL the sfts and Lfts.. what commanding the short fuel trims to go up to 45- 50. And the Longs go back down to 3.5 b1 & b2 7.8.. under load..? Then right back up to 25 at idle for both...And no check light on. But when at highway speeds the check light will come on..then a day or two.. sometimes more and it will go off. Eps After driving around locally . No highways..? I only have a cheap handheld OBD2.. air leak..? Sensors..? And no codes for a evap but on Im it shows evap not ready ×.? ..Sorry I know with out my truck for you to test yourself..lol been having a bad times and costly with the last 3 shops and getting rip off hundreds & hundreds of$$.. any ideas🤔 Please!🙏

[@KITS_Auto_and_Truck_Repair]

William Ward check your fuel delivery at idle and at high rpms, also check 02 sensors and MAF sensor, I have videos on this channel that show you how to test these components, check out those videos... Good Luck!!

[@davidgarcia3351]

4.8 leer

[@KITS_Auto_and_Truck_Repair]

Good!