2006 Tiffin Allegro Bus 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 2006 Tiffin Allegro Bus, 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%
- Powertrain (other)133.3%
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
ISL CM850 ENGINE STOP ENGINE NOW AND OTHER PROBLEMS. CUSTOMER STATES THAT THE #6 WRIST PIN WAS BAD. THE WRIST PIN WAS REPLACED. THEN CONSUMER WAS INFORMED THAT THE MANIFOLD GASKET WAS OUT OF LINE. THAT WAS REALIGNED. *KB ONCE THE GASKET WAS RE-ADJUST, THE ENGINE KNOCK DISAPPEARED. *JB
DT*: THE CONTACT STATED WHEN THE MOTOR HOME WAS EXPOSED TO HOT WEATHER THERE WERE STRONG FUMES PRESENT BELIEVED TO BE FORMALDEHYDE. THE FUMES WERE VERY IRRITATING TO THE EYES OF ALL OCCUPANTS. THE CONTACT'S SPOUSE WAS HOSPITALIZED FOR FIVE DAYS DUE TO RESPIRATORY PROBLEMS, ASTHMA, PNEUMONIA AND A COLLAPSED LUNG. THE CONTACT EXPRESSED THAT THERE WERE OTHER SIMILAR COMPLAINTS ABOUT THIS WERE POSTED ON THE INTERNET. THE DEALERSHIP AND THE MANUFACTURER INFORMED THE CONTACT THAT THE SMELL WOULD GET BETTER AFTER THE VEHICLE GOT OLDER. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
NHTSA CAMPAIGN NUMBER: 07E033000 CUMMINGS ENGINE SERIAL NUMBER 46565687 ON 6/02/2015 THE WRIST PIN FAILED ON THIS ENGINE THAT FALL IN THE SERIAL NUMBER RANGE 46543077 TO 46603939. THE WRIST PIN FAILED WHILE DRIVING ON LA 1 ABOUT TO TURN ONTO I49 CAUSING CATASTROPHIC ENGINE FAILURE. THE ENGINE HAD TO BE REPLACED. CONTACTED TIFFIN ABOUT IT AND LOCAL CUMMINS DEALER AT TIME OF FAILURE. TIFFIN WAS UNAWARE OF RECALL AND LOCAL CUMMINS DEALER WOULD NOT WORK ON THE MOTOR HOME. HAD A LOCAL ENGINE COMPANY DO THE REPLACEMENT OF ENGINE AND THEY WERE NEVER MADE AWARE OF THE RECALL. LAST NIGHT WHILE RESEARCHING THE INTERNET, I STUMBLED UPON THE NHTSA CAMPAIGN NUMBER. CALLED TIFFIN TO CONFIRM ENGINE SERIAL NUMBER WAS 46565687 AND MADE THEM AWARE OF THE NHTSA CAMPAIGN NUMBER. ALSO CONFIRMED WITH CONSOLIDATED TRUCK & SERVICE AGAIN TO CONFIRM THEY HAD NOT HEARD OF NHTSA CAMPAIGN WHICH WAS "NO". THEN PROCEEDED TO CALL CUMMINGS 1-800-343-7357 AND WAS TOLD TO TAKE IT TO THE "LOCAL" DEALER. SINCE THAT IS WHERE THE MOTOR HOME ORIGINALLY, THEY REFUSED TO WORK ON IT, WORK HAD BEEN COMPLETED ELSEWHERE THEN WHO INSIDE CUMMINGS DID I TALK TOO? AT THAT POINT HE TOLD ME HE COULDN'T HELP ME AND WOULD NOT TRANSFER ME HIS BOSS. AT THIS POINT I WOULD LIKE A CONTACT AT CUMMINS WHO UNDERSTANDS THE PROBLEM AND WILLING TO WORK ON COVERING THE COST OF REPLACING THE ENGINE THAT OBVIOUSLY FAILED DUE TO A KNOWN PROBLEM. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *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 .