NISSAN ALTIMA RANDOMLY WON'T ACCELERATE ABOVE 25MPH!!

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Published 2022-08-30
In today's video we take a look at a2015 Nissan Altima w/ a 4 cyl 2.5l engine. The customer complaint is that the accelerator pedal will randomly stop working while driving and the vehicle will not go over 20mph! The owner has already replaced the throttle body and the accelerator pedal sensor assembly. There are no codes or DTCs stored in the computer, so we have to figure this one out the hard way! We catch a break when we realize the brake lights are intermittently getting stuck on! Follow along as I walk you step by step through my troubleshooting and diagnostic procedure. I hope this video helps someone! Refer to Technical service bulletin NTB15-111 for more information!
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Disclaimer:
Due to factors beyond the control of Advanced Level Auto, I cannot guarantee against improper use or unauthorized modifications of this information. Advanced Level Auto assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Advanced Level Auto recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Advanced Level Auto, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Advanced Level Auto.

All Comments (21)
  • @Newdaygr8
    The biggest take away for me, is the fact you genuinely seam to care. That shop and customer are extremely fortunate they had such a great resource to turn to. How many people would be getting ripped off or replacing a perfectly good car over a relay.
  • @Fwatson757
    He’s got to be nothing short of the best diagnostic tech that I’ve ever seen.
  • @gonzalo_v503
    Just replaced these on my wife's car 2014 sentra. Hers was running fine but while driving it would lag and her rpm would go down. You'd press accelerator all the way in and nothing. When turning on the car too, the pedal icon wasn't on and you could start the car without pressing the break. Bow after the new parts, it works!!! MAF could also be a symptoms, I cleaned it prior to doing the brake sensors
  • @adamgomez4202
    I like this guy I wish I had him as my mechanic it looks like he cares about his customers very thorough
  • Dude, this is EXACTLY what happened to my son’s Altima. Now we know what to recommend to the mechanic. You rock brother!
  • @The_Redkween
    Great work as always, Eric! When you mentioned that there were no codes because the condition was intentional was genius.
  • You're not the only one, so tied up in repairs that there's little time left to edit! Excellent as always, and VERY helpful!
  • I’m noticing a pattern with Nissan brake light switches, this is like the 7th video I’ve seen about Nissans having weird problems because of faulty brake light switches. Almost to 100k, I can’t wait to see that. You deserve many more.
  • At 64 years of age this is a new one on me. Excellent diagnosis and presentation as always. Thank you for what you do.
  • @gregjones8501
    This was a cool diagnosis! I definitely wasn’t thinking brake light switch at all! Great way to narrow it down bro!
  • Excellent, fully informed video including how you interpreted the diagnostic information. I’m a little surprised that the diagnostic tool didn’t alert you to the braking issue. Fabulous that you happened to notice the brake lights as you walked past the rear of the car and analytically connect it to the initial complaint! You are truly a mechanical detective!! Looking forward to more revelations!!!
  • @Sothrnbluz
    I love watching Eric's video, cause it's like watching Columbo solve another mystery.
  • @rearlights6186
    BRO!!!! ur such an awesome person! my cars been doing the same exact things!!!! i kept thinking it was the transmission nd dont have that much money to switch it out. i will be getting the sensors nd relay replaced nd bc of ur video brother u may have just saved my bootiehole. THANK U THANK U THANK U for makin this video!!!!! i wish i was in texas to have u be my mechanic for life. i appreciate u soooo much!!!!!❤💯
  • @fawzisdudah8511
    I'm happy that I've subbed to your channel. I'm loving the challenge; I'm learning. This is my first real live testing with a car scanner video.❤
  • @JohneeJohnson
    I just encountered this problem (limited acceleration, trac control light turns on) on a 2021 Hyundai Accent, but I received a P0121 code (throttle body). Found out it was replaced at the dealer, but code and symptoms returned. Just for your video, I’ll ask the dealer to check the brake switch and relay now. Thanks for your great videos. You’re a great teacher!
  • @stevec5657
    It's cool when you post these head scratching diagnostic videos. Awesome job!
  • @lnielrid
    I've had the same issue with my 2012 Altima since probably 2014 .. here we are 9 years later and finally someone smart enough to narrow it down to what the problem is. Thanks, Eric!
  • @drjimjam1112
    One of the best diagnostic videos I have ever seen!! Thank you!!!
  • @DejNtab
    I'm in a mechanic master or technician BUT I've been search stuff on good search and YouTube video on how to troubleshoot in fixing Toyota Camry and Corolla that auto repair shops have no idea what I'm talking about. I've became a ROOKIE in fixing my Camry and Corolla maintenance. I've hardly ever taken my Camry and Corolla for maintenance to auto repair shops unless I absolutely have no idea and can't find anything on Google or your videos... this saves me a lot of $ and time.