Fix a Car That Runs Rough But No Engine Light - MUST WATCH

In this video I will go over how you can go about fixing an engine is running poorly yet there are no check engine lights or no codes stored when you use your OBD II scanner. Be it a misfire, bad Oxygen Sensor, Faulty fuel injectors, clogged air filter, exhaust leak pre B1S1 oxygen sensor, stuck open evap purge solenoid, a bad MAP or Mass Air Flow Sensor.. whatever it maybe you can start by watching this video to the end.

Here are links to products which were used in this video:



Disclaimer:
Due to factors beyond the control of Ratchets and Wrenches, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Ratchets and Wrenches assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair video's. Due to factors beyond the control of Ratchets and Wrenches, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again Any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Ratchets and Wrenches.

[myRatchets]

Here are links to products which were used in this video:

[mtsarch]

When ever I attempt to DIY I go from a rich condition to a poor condition

[labradormcgraw]

For a ten minute video, that was actually very comprehensive. Many people could learn a lot from this.

[markcopple]

For years, every time I have had a problem with my cars your videos have always come to the rescue! Thank you! You videos are well produced and have excellent content. Thank you for mentoring me through my DIY adventures all these years!!!!

[supersabrosinho]

Your vids have a great average Joe vibe to them. You're helping us all out. Thanks! I would love to see more electrical diagnostics/repairs if you're into that stuff

[WhiteVolvo]

The amount of uploads since you got back is insane !

[worshipwhilewewait]

HUGE THANKS! Got a 03' S10 4.3 Vortec that's been pulsing when warmed up. Couldn't figure out the problem (no codes) and then (after watching this and using a Autel scanner w/live feed AND NOW UNDERSTANDING what the numbers meant) decided to check the pre-O2 sensor and the pipes leading up to the engine and FOUND A SMALL LEAK. Fixed leak and replaced exhaust seals (donuts) - and FIXED ENGINE! Truck has NEVER ran so smooth and SO DANG QUIET! HUGE THANK YOU - been trying to get this sucka back to the way it used to run when I first bought it back in 03' . Might have took 17 years but THANK YOU - got a WHOLE NEW APPRECIATION for people that TEACH!!!

[rpm]

You have intelligent, actual content with excellent delivery. Clearly you are highly educated about your industry. Subscribed today and I look forward to playing all your videos

[jimgordon]

Your videos are the most thorough and most clearly explained I’ve seen. Thanks for sharing your vast knowledge.

[humbledhands]

Remind me of the homie in Wyoming 👊Over the years you have been making my backwards introduction to doing it yourself a lot easier with these common sense videos with some slick west coast humor! Hope your avacados farm is producing for you and family's well. Happy new year looking forward to any types of vids you decide to make whether about cars or not keep kicking homeboy!

[markh.]

(In Professor Farnsworth's voice) "Good news, everyone! I've come up with a simple explanation for air/fuel ratios! Let me show you four real-time graphs at the same time so your heads explode!" Serious, very concise explanation of what it all means.

[bretc]

Glad you're back on the scene... great video.

[pKammi]

Wow thank you. I ran my engine on idle and the LTFT was 10%. I sprayed some soap water on the hoses and found the vacuum leak. You saved my car bro. Thanks.

[jajaid]

Really enjoy his videos, super informative! Glad to see you also had my red autel scanner!

[powerofknowledge]

Thanks so much for the info!! I think this may be the problem with my 2010 Chrysler Sebring. It has a rough start, and sometimes a long start. Runs and rides very smooth, but sometimes idles a little rough. I have an OBD2 reader with the Torque app. I'll have to see if I can check those things you mentioned with it.

[Tnkcommander]

Always appreciate your videos. Practical and to the point, while giving enough technical background to satisfy most curious minds.

[paulwells]

Thanks that's the best graphic explanation I've seen showing how the STFT transfers over to the LTFT when the oxygen cell starts to oscillate again. One question: do the downstream oxygen cells oscillate as well or do they show a steady reading when the engine is in the stoichiometric zone and operating normally? Long time subscriber, thanks for all the great info.

[EverydayProjects]

Very Good. I've been a subscriber for years and your videos are getting better and better. Greetings from British Columbia, Canada!

[alanbeggs]

Thanks, having this exact issue but worse when stone cold/just after starting.Now i can look at the scanner data with some knowledge. Keep up the great videos!

[GeneFever]

Thanks, I learned about fuel trims today and my scanner has live data capability.
Also, lol at Beavis and Butthead.