2008 Kenworth T660 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2008 Kenworth T660, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Engine266.7%
- Electrical133.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
2008 KENWORTH T660 WITH A CATERPILLAR C-15 ENGINE. CONSUMER STATES TRUCK CAUGHT FIRE AFTER ACCIDENT *TGW THE CONSUMER STATED A TANKER TRUCK SUDDENLY STOPPED UNEXPECTEDLY AND THE CONSUMERS HUSBAND HIT THE TANKERS BUMPER. SMOKE AND FLAMES STARTED POURING OUT FROM UNDER THE GOOD OF THE TRACTOR. THE CONSUMERS HUSBAND GRABBED THE EXTINGUISHER, RAN TO THE FRONT OF THE TRUNK, BUT BECAUSE OF THE SMOKE AND FLAMES, HE WAS UNABLE TO OPEN THE HOOD. HE DISCHARGED THE FIRE EXTINGUISHER UNDER THE DRIVER'S SIDE WHEEL WELL, BUT THE ENTIRE TRACTOR WAS SOON ENGULFED IN FLAMES. THE FIRE DEPARTMENT EXTINGUISHED THE FLAMES AND THE TRACTOR WAS TOWED TO AN IMPOUND YARD. THE INSURANCE INVESTIGATORS COULD NOT DETERMINE THE CAUSE OF THE FIRE, DUE TO THE AMOUNT OF FIRE DAMAGE TO THE ENGINE. *JB
CUMMINS ISX ENGINE SHUT DOWN TWELVE TIMES SINCE AUG (7 MONTH PERIOD) ON HWY OFTEN REQUIRING A TOW UPDATED 4/26/10 *CN IT WAS FINALLY DETERMINED THE WIRING HARNESS THAT SUPPLIED POWER TO THE ECM WAS NOT CONNECTED PROPERLY FROM THE FACTORY. OVER TIME, THE CONNECTION BECAME WORSE WHICH CAUSED THE ENGINE TO SHUT DOWN. UPDATED 06/04/10. *JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
CUMMINS ISX ENGINE SHUT DOWN TWELVE TIMES SINCE AUG (7 MONTH PERIOD) ON HWY OFTEN REQUIRING A TOW UPDATED 4/26/10 *CN IT WAS FINALLY DETERMINED THE WIRING HARNESS THAT SUPPLIED POWER TO THE ECM WAS NOT CONNECTED PROPERLY FROM THE FACTORY. OVER TIME, THE CONNECTION BECAME WORSE WHICH CAUSED THE ENGINE TO SHUT DOWN. UPDATED 06/04/10. *JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .