Video: GM Start Stop Tandem Solenoid Starter Overview

Peter Curriculum Developer Raleigh, North Carolina Posted   Latest  
Demonstration
Electrical
CTI - Carquest Technical Institute
2018 Chevrolet Malibu LT 1.5L (T LFV) 6-spd (6T40)
Start Stop
Tandem Solenoid
Starter Motor

Hello fellow DN Members,

As you all are likely aware, the Start Stop systems found on today's vehicles are in place to improve fuel consumption during stop and go traffic. These systems possess different hardware configurations than those found on conventional systems. The differences in operational characteristics need to be understood by the service technician engaged with the service and repair of Stop-Start systems. 

In order to help bring some light to the differences of certain Stop-Start system functionality, we recently worked with Diagnostic Network in creating the following video overview on the use of Tandem Solenoid Enhanced Starter Motors found on many Stop-Start system equipped vehicles. These newer Starter Motors will change the way we approach diagnostics to correct any circuit deficiencies with them.

Thanks and please let me know if you have any questions.

+12
Marlin Technician
Estacada, Oregon
Marlin
 

Thank you for the video! What is the purpose of the dual batteries and isolation?

0 Ð Bounty Awarded
Peter Curriculum Developer
Raleigh, North Carolina
Peter
 

Hello Marlin, Great question, and the answer is simple. The dual battery design is an economical method that a manufacturer uses to enable the vehicle electrical system to still maintain its operational capabilities during an Autostop. When all enabling criteria is met, the engine will shut down. However, we don't want the customer to see, hear, or feel anything different in the passenger

+3 Ð Bounty Awarded
Marlin Technician
Estacada, Oregon
Marlin
 

Excellent response. Thank you. Maybe we can get this class added to our schedule for next year.

0 Ð Bounty Awarded
Peter Curriculum Developer
Raleigh, North Carolina
Peter
 

I certainly hope you can take this class in your region. If you do have an opportunity to attend the training class, I'd love to hear your feedback.

0 Ð Bounty Awarded
Scott Manager
Claremont, California
Scott
 

Thanks for the great work Pete, we really appreciate the support! Here are a few "Behind the Scene's" shots: And Action

+5 Ð Bounty Awarded
Peter Curriculum Developer
Raleigh, North Carolina
Peter
 

You are welcome. Thanks so much Scott. I must say the entire video production team made my job a lot easier. Hopefully, we can do this again.

0 Ð Bounty Awarded
Geoff Diagnostician
Lahaina, Hawaii
Geoff
   

Finally had a chance to watch this one. Very thorough clear explanation, thank you. Great tip on mis-diag by just using our ears. Questions: Does GM produce both regular and stop-start engines in the same displacement, such that we will be digging for the RPO of the engine, to know which we are working on? Are they easily identifiable externally otherwise? Thanks! ps, I take it you're from New

0 Ð Bounty Awarded
Peter Curriculum Developer
Raleigh, North Carolina
Peter
 

I take it that your correct, I am from Brooklyn, NY to be exact. Please don't hold that against me...Wasn't the accent was it? To answer your question, the 1.5L 4 cylinder newer engine (KL9) RPO and the older 2.5L were the engines chosen for Stop-Start. I have not seen the same engine displacement used in non-stop-start equipped cars.

0 Ð Bounty Awarded
Geoff Diagnostician
Lahaina, Hawaii
Geoff
 

Thanks Peter. I almost said Brooklyn. My grandparents both worked in Manhattan. My dad grew up in and out of the city. Go Yankees!

0 Ð Bounty Awarded