There have been 7 technical service bulletins issued for the 2015 Caterpillar CT681.
| Bulletin Date: | Feb. 2, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | Certain truck models that were built with 2013 through 2015 model year ct13 engines. Engine software obd issues will be corrected which will aid in engine malfunction identification and proper diagnosis. In addition, under certain conditio |
| Vehicles covered in this TSB: |
2014 Caterpillar CT660,
2015 Caterpillar CT660,
2016 Caterpillar CT660,
2017 Caterpillar CT660,
2014 Caterpillar CT680,
2016 Caterpillar CT680,
2017 Caterpillar CT680,
2014 Caterpillar CT681,
2015 Caterpillar CT681,
2016 Caterpillar CT681,
2017 Caterpillar CT681.
|
| Bulletin Date: | Nov. 10, 2016 |
| Component: | Engine (pws). |
| Bulletin Summary: | Extended life coolant (elc) exhibiting nitrite depletion in machines equipped with aluminum radiators-nitrites in extended life coolant (elc) can react with the aluminum cooler to produce elevated ph and low nitrite levels in schedule oil s |
| Vehicles covered in this TSB: |
2012 Caterpillar CT660,
2013 Caterpillar CT660,
2014 Caterpillar CT660,
2015 Caterpillar CT660,
2016 Caterpillar CT660,
2017 Caterpillar CT660,
2012 Caterpillar CT680,
2013 Caterpillar CT680,
2014 Caterpillar CT680,
2015 Caterpillar CT680,
2016 Caterpillar CT680,
2017 Caterpillar CT680,
2012 Caterpillar CT681,
2013 Caterpillar CT681,
2014 Caterpillar CT681,
2015 Caterpillar CT681,
2016 Caterpillar CT681,
2017 Caterpillar CT681.
|
| Bulletin Date: | Nov. 8, 2016 |
| Component: | Cooling exhaust system. |
| Bulletin Summary: | The existing exhaust flex pipe can crack on certain ct660, ct680, and ct681 on-highway trucks. If the existing exhaust flex pipe cracks it can/will result in an exhaust leak after the aftertreatment system but before the vertical stack. Rep |
| Vehicles covered in this TSB: |
2014 Caterpillar CT660,
2015 Caterpillar CT660,
2016 Caterpillar CT660,
2017 Caterpillar CT660,
2014 Caterpillar CT680,
2015 Caterpillar CT680,
2016 Caterpillar CT680,
2017 Caterpillar CT680,
2014 Caterpillar CT681,
2015 Caterpillar CT681,
2016 Caterpillar CT681,
2017 Caterpillar CT681.
|
| Bulletin Date: | Jan. 2, 2016 |
| Component: | Structure. |
| Bulletin Summary: | Aftertreatment outlet nox sensor internal water shield installation - water intrusion can cause the malfunction or failure of the aftertreatment outlet nox sensor on vertical exhaust configurations. The recommended repair is to install a ra |
| Vehicles covered in this TSB: |
2012 Caterpillar CT660,
2013 Caterpillar CT660,
2014 Caterpillar CT660,
2015 Caterpillar CT660,
2016 Caterpillar CT660,
2017 Caterpillar CT660,
2012 Caterpillar CT680,
2013 Caterpillar CT680,
2014 Caterpillar CT680,
2015 Caterpillar CT680,
2016 Caterpillar CT680,
2017 Caterpillar CT680,
2014 Caterpillar CT681,
2015 Caterpillar CT681,
2016 Caterpillar CT681,
2017 Caterpillar CT681.
|
| Bulletin Date: | Sep. 21, 2015 |
| Component: | Engine (pws). |
| Bulletin Summary: | Ct11 and ct13 cylinder head crack inspection guide - ct11 and ct13 cylinder heads are cracking in the field. This technical information bulletin (tib) provides a guide for determining the severity and impact of cylinder head cracks on ct11 |
| Vehicles covered in this TSB: |
2012 Caterpillar CT660,
2013 Caterpillar CT660,
2014 Caterpillar CT660,
2015 Caterpillar CT660,
2016 Caterpillar CT660,
2017 Caterpillar CT660,
2012 Caterpillar CT680,
2013 Caterpillar CT680,
2014 Caterpillar CT680,
2015 Caterpillar CT680,
2016 Caterpillar CT680,
2017 Caterpillar CT680,
2014 Caterpillar CT681,
2015 Caterpillar CT681,
2016 Caterpillar CT681,
2017 Caterpillar CT681.
|
| Bulletin Date: | Mar. 19, 2015 |
| Component: | (pws). |
| Bulletin Summary: | Caterpillar: the engine emissions is experiencing a defect, on certain trucks, and would need to be recalibrated to electronic control module (ecm) latest file. Model 2013-14 ct660, ct680 lg, ct681 sg. |
| Vehicles covered in this TSB: |
2012 Caterpillar CT660,
2013 Caterpillar CT660,
2014 Caterpillar CT660,
2015 Caterpillar CT660,
2013 Caterpillar CT681,
2015 Caterpillar CT681.
|
| Bulletin Date: | Apr. 21, 2014 |
| Component: | Battery cables. |
| Bulletin Summary: | Battery cable reroute - due to battery cable routing, there is a chance that battery cable near starter may rub on bracket bolt that holds it in place. |
| Vehicles covered in this TSB: |
2014 Caterpillar CT660,
2015 Caterpillar CT660,
2016 Caterpillar CT660,
2017 Caterpillar CT660,
2014 Caterpillar CT681,
2015 Caterpillar CT681,
2016 Caterpillar CT681,
2017 Caterpillar CT681.
|