Crank No Start Case Study

Aaron Diagnostician California Posted   Latest  
Case Study
Driveability
2001 Chevrolet Express 3500 5.7L (R L31) 4-spd
Crank / No Start

Check out this case study had lots of parts thrown at it from other shop 

youtu​.​be/1ecaAsvhxdI

+7
Thanks
Helpful
Glenn Owner/Technician
Texas
Glenn
 

Good Job Aaron, Sadly, in many areas of the country this is becoming commonplace. The other shop only knew how to replace parts, not diagnose. That Master ASE patch was not given to you.

+5
Ð Awarded
Agree
Thanks
Aaron Diagnostician
California
Aaron
 

i agre Glenn and than you 💪

+2
Ð Awarded
Agree
Paul Technician
California
Paul
 

Thanks for the video Aaron. I had been in European Dealerships for 21 years, then spent 15 years in the aftermarket where I really learned to diagnose and repair. I am now back in a dealer, this time a Korean car dealership. It’s amazing how few guys actually know how to diagnose. Warranty doesn’t pay to diagnose, they actually want you to try parts changing. Some people just never get out of…

+1
Ð Awarded
Helpful
Thanks
Raymond Mobile Technician
Michigan
Raymond
 

Hi Paul, I used to work at a Buick dealership, you are correct I witness this trying parts all the time worst part is when they try a module or sensor burn it up and give it back to parts department and they put in back on shelf and sell it again. The dealership don’t understand how important diagnosis is and how you can’t put a time stamp on it.

+1
Ð Awarded
Helpful
Thanks
Glenn Owner/Technician
Texas
Glenn
 

Hi Aaron, I just realized that I still have a couple old Sun Tools ignition module testers that I have not hardly used in years. I still keep all those old testers stored without batteries. Those testers were basically “Go or No-Go testers”. You provided a good example of how to utilize a 4-channel scope on this troubleshoot. Many out there need these simple tests and learn how to prove out…

+1
Ð Awarded
Helpful
Thanks
Robert Technician
Michigan
Robert
 

I always start at the coil tower on the HVS distributors ,most the time its always the cap/rotor .. Way to confirm that's a $100 guess for sure

+1
Ð Awarded
Helpful
Thanks
Raymond Mobile Technician
Michigan
Raymond
 

As always thanx Arron for sharing

+1
Ð Awarded
Agree
Thanks
Randall Owner/Technician
Michigan
Randall
 

Well Done, Thank You for sharing Trying to understand how the diagnostic community would look at this evaluation from a billable time aspect, for the diagnostic portion only. Aaron made it look easy, and essentially it was fairly basic for a skilled technician, when compared to many of the modern systems we have to deal with. I suspect actual clock time for the diag would be an hour or less…

+1
Ð Awarded
Helpful
Thanks
Glenn Owner/Technician
Texas
Glenn
 

Hi Randal. Jobs like this typically have time involved to: Move vehicle from the “dead vehicle” holding area, check computer information by initial scanning, R&I the engine cover, research the vehicle service information, perform some quick test to arrive at a direction to go, connect diagnostic equipment and test multiple components to identify the root cause. A traditional 1-hour…

+2
Ð Awarded
Agree
Thanks
Randall Owner/Technician
Michigan
Randall
 

Thank You Glen. I was hoping someone would disagree on the “not nearly enough” side. My "60 clock minutes" estimate really did not have anything to do with a traditional 1 hour quote. It was just the absolute minimum clock minutes I could imaging having into this. I love the way you laid it out. I fear your process is not followed nearly often enough. For sure we need to get trainers and those…

0
Ð Awarded
Glenn Owner/Technician
Texas
Glenn
 

Hi Randall, In the automotive repair industry, "book", imagined, or speculated times often distorts reality. The shops have a cushion on parts markup (+33.39% retail) and their cut of the labor (65% avg,) the tech is left holding the scraps, often wondering what happened in the end. The shops seldom lose and always plan to break even regardless of what a tech loses. Simply put, it's “just…

0
Ð Awarded
Glenn Owner/Technician
Texas
Glenn
 

Hi Randall, We see on here and other sites all the time how the industry is wondering why they cannot find good technicians. Simply put: Many Technicians are wising up and tired of being taken advantage of. What other industry takes advantage of people who have 20K or more invested in tools, then expect the people to work for less than 30% of the shop labor rate? What adds insult to injury is…

0
Ð Awarded
Aaron Diagnostician
California
Aaron
 

thank you Randall

+1
Ð Awarded
Helpful
Interesting