2014 Tiffin Phaeton 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 2014 Tiffin Phaeton, 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
- Fuel system375.0%
- Engine125.0%
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
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
VEHICLE IS 5 YRS OLD WITH ABOUT 16000 MILES. WHILE DRIVING ON INTERSTATE WIFE NOTICED A SMELL COMING FROM THE REAR. WE THOUGHT IT WAS ENGINE CLEANER BURNING OFF FROM AN OIL LEAK REPAIRED A FEW DAYS PRIOR BY CUMMINS. SMELL GOT STRONGER SO PULLED INTO TRUCK STOP AND FOUND A HUGE DIESEL FUEL LEAK ON THE PASSENGER SIDE OF THE ENGINE. WE HAD A STEADY STREAM BEHIND US FROM PULLING IN NOT THE OCCASIONAL DROP HERE AND THERE. AFTERWARDS WE ESTIMATED THAT WE LOST ABOUT 10 GALLONS IN 30 MILES. THE CAUSE WAS A BROKEN #4 FUEL INJECTOR LINE BETWEEN THE COMMON RAIL AND THE BLOCK AT THE FERRULE AGAINST THE BLOCK. THE NEW PART HAS AN ADDITIONAL SUPPORT BETWEEN THE TWO CONNECTIONS TO KEEP IT FROM FLEXING AND CRACKING SO IT MUST BE A KNOWN ISSUE AS CUMMINS HAS CHANGED THE DESIGN OF THE PART. THE CUMMINS REPAIR FACILITY ALSO SAID IT WAS A FAIRLY COMMON ISSUE THEY SEE. THE ENTIRE SIDE OF THE ENGINE AND EXHAUST WAS DRIPPING WITH FUEL. IF THERE HAD BEEN A REGEN GOING ON IT LIKELY WOULD HAVE CAUSED A FIRE DUE TO THE HIGH TEMP AND THE FACT THAT THAT PART OF THE EXHAUST WAS SOAKED IN FUEL.MY UNDERSTANDING IS THAT THEY HAVE A SIMILAR ISSUE WITH THE # 6 LINE SINCE IT HAS A REVISION TO A MIDPOINT SUPPORT BRACKET AS WELL AND ANY RV FORUM WILL HAVE REPORTS OF THAT FAILURE AS WELL.*DT CONSUMER STATED FUEL LEAKS ARE A KNOWN ISSUE. CONSUMER DID NOT CONTACT MANUFACTURER. *JB
PULLED INTO CAMPGROUND THEN STOPPED AND GOT OUT TO REGISTER. DIESEL FUEL LEAKING, TOAD COVERED WITH DIESEL FUEL AND MUCH SMOKE. #4 FUEL INJECTOR TUBE HAD CRACK IN IT---NO DAMPER ISOLATOR INSTALLED TO DAMPEN VIBRATION. NEW TUBE HAD ISOLATOR RING TO BOLT DOWN.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
CUMMINS FUEL FILTER FF 63009 DATE CODE 14200, APPEARED TO HAVE FAILED, LEAKING FUEL ONTO THE EXHAUST PIPE AS WELL AS STALLING THE MOTOR HOME AT THE CREST OF A SMALL MOUNTAIN.LEAKING FUEL DID NOT CAUSE A FIRE BUT DID SMOKE. IF ENGINE HAD BEEN IN REGEN MODE THERE COULD HAVE BEEN A FIRE....CONTACT WITH CUMMINS REVEALED THAT THEY HAVE HAD SOME OF THESE FILTERS FAIL WITH NO APPARENT VISUAL DEFECTS BUT DID SHOW UNDER PRESSURE. *TR
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 .