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2007 Monaco Coach Diplomat

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Visibility. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

Visibility complaints

1 reports
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5,100 miles · Jun 30, 2008
Visibility

MONACO RECALL CAMPAIGN NO. 08V070000 MONACO FILE R08005 AM EQUIPMENT WIPER SYSTEM RECALL. *TR I HAD THE RECALL REPAIRS DONE AT LIGHTNIN RV IN LAWRENCEVILLE GA 770-963-9889 THE REPAIRS WERE DONE 2ND WEEK IN APRIL. SINCE I HAVE BEEN ON A TRIP AND THE NEW PARTS FROM AM EQUIPMENT HAVE FAILED, THE WIPERS BECOME DISCONNECTED FR…

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MONACO RECALL CAMPAIGN NO. 08V070000 MONACO FILE R08005 AM EQUIPMENT WIPER SYSTEM RECALL. *TR I HAD THE RECALL REPAIRS DONE AT LIGHTNIN RV IN LAWRENCEVILLE GA 770-963-9889 THE REPAIRS WERE DONE 2ND WEEK IN APRIL. SINCE I HAVE BEEN ON A TRIP AND THE NEW PARTS FROM AM EQUIPMENT HAVE FAILED, THE WIPERS BECOME DISCONNECTED FROM THE DRIVE MOTOR. THE SAME EXACT WAY THEY DID BEFORE THE RECALL REPAIRS. MY MOTOR HOME HAS BEEN IN THE SHOP FOR GOING ON 2 WEEKS WAITING FOR DIRECTION FROM AM EQUIPMENT TO LIGHTNIN RV. THIS IS A HUGE SAFETY PROBLEM AS MY MOTOR HOME WEIGHS 43,000LB AND IF YOU CANT SEE IN AN UNEXPECTED RAIN STORM MY SAFETY AS WELL AS OTHERS IN MY PATH ARE IN DANGER DUE TO IMPAIRED VISION. HOPEFULLY YOU CAN HELP

NHTSA ODI #10232728

Official recalls

3

08V070000 · Visibility:windshield Wiper/washer:linkages

Feb 14, 2008

MONACO IS RECALLING 1,733 MY 2006-2007 DIPLOMAT AND HOLIDAY RAMBLER ENDEAVOR MOTOR HOMES EQUIPPED WITH WIPER SYSTEMS SUPPLIED BY AM EQUIPMENT. THE DRIVE MOTOR LINK BECOMES DISENGAGED DURING OPERATION FROM THE WIPER DRIVE ARM WHERE IT ATTACHES TO THE DRIVE ARM CAUSING THE WIPER SYSTEM TO FAIL.

Consequence & remedy

Consequence: WHEN THE WIPER SYSTEM FAILS, THE OPERATOR WILL HAVE REDUCED VISIBILITY WHICH COULD RESULT IN A CRASH.

Remedy: MONACO WILL REPLACE THE COMPLETE UNDER-THE-HOOD WIPER SYSTEM WITH A NEW MODEL, REUSING THE WIPER ARM AND BLADES. THE RECALL BEGAN ON MARCH 11, 2008. OWNERS MAY CONTACT MONACO AT 1-800-685-6545.

07V404000 · Equipment:recreational Vehicle/trailer

Sep 6, 2007

ON CERTAIN MOTOR HOMES EQUIPPED WITH ATWOOD SEALED BURNER RANGES, THE RANGE AND SLIDE-IN BURNER TUBES LEADING FROM THE GAS MANIFOLD TO THE BURNER HEADS HAD A DEPRESSION OR 'KINK' IN THE EXTERIOR BEND RESTRICTING PROPER AIRFLOW AND GAS MIXTURE.

Consequence & remedy

Consequence: THIS CONDITION COULD RESULT IN CARBON MONOXIDE POISONING.

Remedy: MONACO IS WORKING WITH ATWOOD TO HAVE THE TUBES REPLACED ON THESE RANGES. THE RECALL BEGAN ON DECEMBER 14, 2007. OWNERS MAY CONTACT ATWOOD AT 1-800-348-7418 OR MONACO AT 1-800-685-6545.

07V311000 · Engine And Engine Cooling:engine:diesel

Jul 20, 2007

ON CERTAIN MOTOR HOMES BUILT WITH CUMMINS ISL CM850 DIESEL ENGINES, THE CONNECTING ROD CONTAINS A MACHINING DEFECT IN THE WRIST PIN BUSHING OF THE ROD THAT COULD CAUSE A SEIZURE OF THE PISTON PIN.

Consequence & remedy

Consequence: IF ALLOWED TO PROGRESS, THIS CAN LEAD TO ENGINE FAILURE WITH THE POSSIBILITY OF THE ROD RUPTURING THE LOCK CAVITY, OIL AND DEBRIS ON THE ROADWAY AND VEHICLE CRASH.

Remedy: MONACO IS WORKING WITH CUMMINS TO RECALIBRATE THE ENGINE CONTROL MODULE AND ENHANCE THE ENGINE PROTECTION SYSTEM ENABLING IT TO PROVIDE EARLY DETECTION OF THE FAILURE MODE AND AVOID MORE SERIOUS ENGINE DAMAGE AND RESULTANT SAFETY HAZARD. CUMMINS WILL ALSO INSTALL A NEW VALVE COVER WITH A CRANKCASE PRESSURE SENSOR FREE OF CHARGE (PLEASE SEE 07E033). OWNERS MAY CONTACT CUMMINS AT 800-343-7357 OR MONACO AT 1-800-685-6545.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.