2018 Chevy Malibu P1101, P2138 [Don't Always Rely On a TSB!]

This video revolves primarily around identifying and cleaning a dirty throttle body.

Related Videos:
Dirty Throttle Body-Identification and Cleaning (my truck)

MAP Sensor Code P0106 caused by a dirty throttle body

2014 Chevy Malibu 2.0L P1101 Caused by a Dirty Throttle Body

O2 Code, Dirty Throttle Body (stalling problem) & Mechanic Incompetence

Time Stamps
00:00 Intro
01:07 Code scan
03:05 Live data
04:56 Code research and freeze frame data
09:57 TSBs throwing us off track
11:25 Finding the fault
13:50 Reviewing service information
14:45 Cleaning the throttle body
17:33 Idle learn reset
18:22 Live data after cleaning throttle body
20:55 Test drive
25:48 How to charge for this diagnosis
28:50 Final look at live data
29:58 Outro

ScannerDanner Tools:

On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!

Disclaimer:
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[MiketheMechanic]

TSB's, Identifix and other crowd sourced fixes are a tool that should be used with caution. The rabbit hole can be very deep.

[fascistpedant]

It's nice to see a good old Scanner Danner case study. Thanks.

[howlinhog]

I remember years ago a TSB came out from GM for a transmission failure. It's been too long ago to remember the details, but I do remember where the blame was placed because it was so obviously stupid. They blamed the failure on the customer laying their arm on the column mounted shift lever. I also remember telling the instructor what I thought of it while attending one of the many classes my dealership sent me to in Saginaw and Detroit. He didn't disagree.

[DJ-tnvj]

Crazy how I have a Nissan in the shop for an engine job. Now it doesn't wants to start. I didn't have to remove the throttle body to do the head/valves job. Now it's throwing a P2101 & P0507. ETC issues. It's a crank no start. The customer is pissed. Pushed the throttle body plate. Vehicle starts right up. But check light keeps popping up and the vehicle goes into limp mood. Swapped out the throttle body with a used one. Car up and running again. The throttle body plate was stuck and restricting the air. The customer doesn't understand how his car drove in for an engine job now it's a crank no start due to a throttle body. This is the crazy part about owning a garage. You just have to bite the bullet and get the car out of your shop.

[juliehickerson]

I work at a GM dealership in 99.9 percent of the time the p 1101 fix is cleaning a throttle body and replacing the PCV orifice. The PCV orifice it's so small at about 60, 000 MI they are mostly restricted. Even if they pass the crankcase pressure test if they are above 60, 000 miles I replace them. The orifice is only $8 but it's about 5 hours labor to replace it.

[donaldtyrone]

I work on these things all the time due to the amount we have in the fleet. They still sell these cars for fleets, and we're seeing this issue, as well as transmission issues. At least they addressed the vacuum pump failures😅 Great video and info as always!

[johnnysprocketz]

The one and only, Professor Danner. Take notes kids

[isalmankhan]

Thanks for sharing SD😍😍😍
Totally agree fundamentals are key👍🏻👍🏻👍🏻
Special Thanks to cameraman Caleb😎
Stay Blessed Guy's🙏🏻🙏🏻🙏🏻

[ScannerDanner]

I wasted so much time following the TSBs on these two codes. Just remember that a technical service bulletin is not the be all, end all and that we need to lean on our fundamentals FIRST on any diagnostic job.

[mohammedsahib]

Hey Scanner, I've been watching your videos for long time now always love it your step-by-step diagnostic is great knowledge for all of us thanks mate!

[pacman_]

Ironically I cleaned a relative's Prius throttle body and MAF this week! It was had a rough idle, no codes. I carefully opened and closed the throttle plate not to let it slam.

[Russell_Duncan]

Yes. I liked that. Thanks for sharing guys. 👍😎

[jasontinkham]

I had a Malibu with a P1101, I didn't think the throttle body cleaning would fix it, but it did.

[mike-sny]

You talking about the customer issues/concerns and no report of cutting out or driveability at the end was important for me,

[paulspeller]

yes sir i have found over the years tsb’s are something to keep in mind for sure but i tend to follow my proses and listen to my gut 🤣🤣🤣 at 58 years old its seasoned gut and normally not far off the mark 🤪🤪🤪🤪

[louk]

Paul and Caleb another great video! Your fundamentals are true and tested. In your experience doing many of these throttle cleanings have you ever seen a dirty throttle throw a fuel rail pressure sensor code on a GDI? I kept getting the same code over and over I checked the sensor and the wiring the high pressure pump all checked out. Pin fitment. Looked at the throttle it was really dirty cleaned the MAF as well. Not sure if that was the issue but code is gone😂. Thank you and God bless all you do.

[bestestname]

Been driving with mine intermittent on off. It's my carbon canister. Hard to fill up at times but don't really care, until it really ticks me off ill fix it. P0449 ❤🎉

[eduardoyepez]

I appreciate that you care about my fuzzies

[codo]

Good on you Mr. Danner. See you next time.

[skyetheboss]

I had a malibu (I believe it was also an 18) that had the same codes. I ended up replacing the throttle (mine wasnt even dirty). Then did the MAF sensor because it was still reading rich. The real culprit for the car I worked on ended up being an o2 sensor. Replaced it and fuel trim went right where it was supposed to.