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2001 Monaco Coach Diplomat Le

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: 4 of 5 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.

  • Steering. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Equipment. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Suspension. 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 reports2 fire reports0 injury reports

What owners actually said

5 reports
31,000 miles · Apr 18, 2008
EquipmentFire

TL*THE CONTACT OWNS A 2001 MONACO DIPLOMAT LE. THE CONTACT STATED THAT HIS REFRIGERATOR FAILED TO WORK. HE CALLED A LOCAL TECHNICIAN TO COME OUT AND INSPECT THE VEHICLE AND WAS INFORMED THAT THERE WAS A COOLANT LEAK. THE TECHNICIAN STATED THAT THE FAILURE COULD BE REPAIRED OR THE CONTACT COULD PURCHASE A NEW UNIT. THE CONTAC…

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TL*THE CONTACT OWNS A 2001 MONACO DIPLOMAT LE. THE CONTACT STATED THAT HIS REFRIGERATOR FAILED TO WORK. HE CALLED A LOCAL TECHNICIAN TO COME OUT AND INSPECT THE VEHICLE AND WAS INFORMED THAT THERE WAS A COOLANT LEAK. THE TECHNICIAN STATED THAT THE FAILURE COULD BE REPAIRED OR THE CONTACT COULD PURCHASE A NEW UNIT. THE CONTACT CHOSE TO PURCHASE A NEW UNIT; HOWEVER, THE OLD UNIT WAS NOT REMOVED BECAUSE IT WAS INOPERABLE. ON APRIL 9, 2008, THE CONTACT HEARD A LOUD EXPLOSION FOLLOWED BY A HISSING SOUND AND A STRONG AMMONIA ODOR. HIS GRANDSON NOTICED A FIRE IN THE AREA OF THE REFRIGERATOR. THE FIRE DEPARTMENT ARRIVED AND INFORMED THE CONTACT AND HIS FAMILY THAT THEY COULD NOT STAY IN THE VEHICLE BECAUSE OF THE FUMES. A POLICE REPORT WAS FILED. MONACO STATED THAT THEY WERE NOT RESPONSIBLE FOR ANY OF THE DAMAGE. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER 08E030000 (EQUIPMENT), BUT HIS UNIT WAS IDENTIFIED AS ONE OF THE DEFECTED UNITS. THE FAILURE AND CURRENT MILEAGES WERE 31,000.

NHTSA ODI #10224929

237 miles · Jan 5, 2003
Steering

3RD UPDATE TO OD ID #8005766. THE GOODYEAR PRODUCT SERVICE BULLETIN (PSB 2002-20), DATED JULY 10, 2002, WAS FOR THE 1999-2001 40 FT. MONACO WINDSOR MOTOR HOME WITH 275/70R22.5 LR H TIRES. OUR 2001 40 FT. DIPLOMATE LE HAS THE SAME TIRES AND WEIGHS APPROXIMATELY THE SAME. THE WHEELBASE ON THE 40 FT. WINDSOR IS 270 INCHES, THE W…

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3RD UPDATE TO OD ID #8005766. THE GOODYEAR PRODUCT SERVICE BULLETIN (PSB 2002-20), DATED JULY 10, 2002, WAS FOR THE 1999-2001 40 FT. MONACO WINDSOR MOTOR HOME WITH 275/70R22.5 LR H TIRES. OUR 2001 40 FT. DIPLOMATE LE HAS THE SAME TIRES AND WEIGHS APPROXIMATELY THE SAME. THE WHEELBASE ON THE 40 FT. WINDSOR IS 270 INCHES, THE WHEELBASE ON THE DIPLOMAT LE IS 256 INCHES, WHICH MAKES IT 12 INCHES SHORTER THAN THE WINDSOR AND WITH MORE WEIGHT TO THE REAR OF THE MOTOR HOME, WHICH COLD BE ONE OF THE CAUSES OF THE STEERING PROBLEM. I TALKED WITH AN ENGINEER FROM GOODYEAR AND HE SAID OUR MOTOR HOME, WITH 125 LBS. OF AIR IN THE TIRES AND RUNNING AT FREEWAY SPEEDS IN 90+ DEGREE WEATHER, WOULD BE COMPARABLE TO THE "FIRESTONE FORD ROLLOVER" PROBLEM, WITH THIS SIZE TIRE AND AIR PRESSURE. (HE ALSO INDICATED HE WOULD HAVE TO DENY THIS SHOULD HE BE ASKED BY ANY SAFETY AGENCY). GOODYEAR DOES HAVE A TIRE WHICH IS A SIZE BETWEEN WHAT WE CURRENTLY HAVE AND WHAT THEY ARE PUTTING ON THE WINDSOR (WHICH IS TOO LARGE FOR OUR MOTOR HOME). I TALKED WITH AN ENGINEER FROM MICHELIN AND HE SAID THE MICHELIN 275/80R22X2A2 WOULD BE A LOT SAFER TIRE ON THE VEHICLE. THAT TIRE IS 41 INCHES IN DIAMETER AS COMPARED TO OUR 37 INCHES IN DIAMETER, AND WOULD CAUSE THE VEHICLE TO STEER BETTER. WE'VE MET A LOT OF PEOPLE AT MONACO RALLYS WHO HAVE HAD SIMILAR PROBLEMS WITH STEERING AND TIRES, BUT THEY SAID MONACO TOLD THEM IF THEY REPORTED ANY PROBLEMS TO THE GOVERNMENT, THEY WOULD NO LONGER TRY TO HELP THEM. WEIGHT & MEASUREMENT CHARTS FOR MONACO COACHES CAN BE FOUND AT HTTP://WWW.MONACOCOACH.COM. MONACO ONLY MADE THE DIPLOMAT LE IN 2001 AND 2002 AND THEN STOPPED. WE FEEL THIS HAD TO DO WITH THE POOR QUALITY OF THE PRODUCT ALTHOUGH THEY DENY THIS.

NHTSA ODI #10000735

237 miles · Dec 31, 2002
Steering

2ND UPDATE TO OD ID 8005766. THE GOODYEAR TIRE REPLACEMENT, WE ARE TOLD, WAS NOT A RECALL AND DID NOT INCLUDE OUR COACH. HOWEVER, WE FEEL BECAUSE THE TIRE SIZES BEING REPLACED WERE THE SAME AS OURS, WE SHOULD BE INCLUDED. MONACO STATES THEY DID NOT TELL GOODYEAR NOT TO REPLACE THE TIRES, GOODYEAR CHOSE NOT TO PUT LARGER TIRES…

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2ND UPDATE TO OD ID 8005766. THE GOODYEAR TIRE REPLACEMENT, WE ARE TOLD, WAS NOT A RECALL AND DID NOT INCLUDE OUR COACH. HOWEVER, WE FEEL BECAUSE THE TIRE SIZES BEING REPLACED WERE THE SAME AS OURS, WE SHOULD BE INCLUDED. MONACO STATES THEY DID NOT TELL GOODYEAR NOT TO REPLACE THE TIRES, GOODYEAR CHOSE NOT TO PUT LARGER TIRES ON. WE HAVE ALSO SOUGHT TO HAVE THE MONROE SHOCKS REPLACED AND WERE TOLD BY MONROE THAT ROADMASTER WOULD HAVE TO TAKE THEM OFF AND SEND THEM BACK; HOWEVER, BECAUSE OF THE LEGAL DISPUTE, ROADMASTER WILL NOT DO THIS. THE SHOCKS ARE UNDER WARRANTY. WE ARE STILL BEING TOLD TO CONTACT A MONROE DEALER. HOWEVER, WE STILL FEEL THAT BECAUSE MONACO HAS BEEN AWARE OF THIS PROBLEM WITH THE STEERING SINCE WE'VE HAD THE MOTOR HOME, THEY SHOULD BE MORE COOPERATIVE WHEN OUTSIDE AGENCIES TRY TO ASSIST US. WE FEEL THE MOTOR HOME IS NOT SAFE TO DRIVE BECAUSE OF THE STEERING.

NHTSA ODI #10000654

237 miles · Dec 30, 2002
Steering

UPDATE TO OD ID 8005766. WE HAVE BEEN TRYING TO GET OUR STEERING PROBLEM SOLVED WITH MONACO BUT THEY REFUSE TO DO ANYTHING BECAUSE WE HAVE A LAWSUIT PENDING (THE LAWSUIT DOES NOT ADDRESS THE STEERING PROBLEM). WE RECENTLY LEARNED THAT GOODYEAR HAS A RECALL (PSB#2002-20) ON OUR TIRES, WHICH ONLY HAVE 15,000 MILES ON AND ARE BA…

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UPDATE TO OD ID 8005766. WE HAVE BEEN TRYING TO GET OUR STEERING PROBLEM SOLVED WITH MONACO BUT THEY REFUSE TO DO ANYTHING BECAUSE WE HAVE A LAWSUIT PENDING (THE LAWSUIT DOES NOT ADDRESS THE STEERING PROBLEM). WE RECENTLY LEARNED THAT GOODYEAR HAS A RECALL (PSB#2002-20) ON OUR TIRES, WHICH ONLY HAVE 15,000 MILES ON AND ARE BADLY WORN, BUT MONACO WILL NOT AUTHORIZE THE REPLACEMENT BECAUSE OF OUR LAWSUIT. WE WANT TO UPDATE THIS COMPLAINT SO, IN THE EVENT WE ARE INVOLVED IN AN ACCIDENT WE HAVE ON RECORD THAT MONACO HAS REFUSED TO ADDRESS THIS STEERING PROBLEM.

NHTSA ODI #10000640

Mileage unknown · Mar 15, 2002
SuspensionFire

VEHICLE HAS HAD APPROXIMATELY 12 ALIGNMENTS, WANDERS ALL OVER THE ROAD AND IS DIFFICULT TO CONTROL. MANUFACTURER HAS NO REMEDY.*AK *MR

NHTSA ODI #8005766

Official recalls

3

08V257000 · Equipment:recreational Vehicle/trailer

Jun 5, 2008

MONACO IS RECALLING CERTAIN MOTOR HOMES EQUIPPED WITH NORCOLD REFRIGERATORS. A FATIGUE FAILURE IN THE SECTION OF THE COOLING UNIT WHICH CONTAINS THE REFRIGERANT COULD ALLOW THE LIQUID SOLUTION TO SLOWLY LEAK.

Consequence & remedy

Consequence: EXTENDED OPERATION OF A LEAKING COOLING UNIT COULD LEAD TO A FIRE FROM GAS WHICH MIGHT ESCAPE.

Remedy: MONACO IS WORKING WITH NORCOLD TO REPAIR THESE REFRIGERATORS. NORCOLD WILL PROVIDE THERMAL SWITCH KITS TO OWNERS ALONG WITH THE NECESSARY FORMS AND INSTRUCTIONS. THE RECALL BEGAN ON AUGUST 29, 2008. OWNERS MAY CONTACT NORCOLD AT 1-800-767-9101 OR MONACO AT 1-800-685-6545.

02V013001 · Service Brakes, Air:controls, Pedals And Linkages

Jan 7, 2002

ON CLASS A MOTOR HOMES BUILT WITH A STEERABLE AUXILIARY AXLE AND EQUIPPED WITH CERTAIN MERITOR-WABCO BRAKE SYSTEM TWO AND FOUR PORT RELAY VALVES, THE VALVE MAY STICK OPEN WHEN A HIGH-PRESSURE BRAKE APPLICATION IS RELEASED.

Consequence & remedy

Consequence: WHEN THE VALVE STICKS OPEN, IT CAN RESULT IN A TOTAL LOSS OF AIR FROM EITHER THE SERVICE OR THE PARK BRAKE SYSTEM. THE DRIVER MAY LOSE BRAKING ABILITY UNDER A SERVICE APPLICATION, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy: DEALERS WILL REPLACE THESE VALVES. MERITOR WABCO IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MERITOR WABCO AT 800-535-5560 OR MONACO AT 1-877-466-6226.

01V128005 · Seat Belts:front:buckle Assembly

Apr 30, 2001

VEHICLE DESCRIPTION: CLASS A MOTOR HOMES EQUIPPED WITH SAFETY BELT ASSEMBLIES BUILT BY AM-SAFE. ON SOME SEAT BELTS, THE BUCKLE AND CONNECTOR MAY UNLATCH DURING A COLLISION.

Consequence & remedy

Consequence: SERIOUS INJURY OR DEATH COULD OCCUR IF THE VEHICLE OCCUPANT IS NOT PROPERLY RESTRAINED.

Remedy: DEALERS WILL INSPECT THE LAP BELTS AND, IF NECESSARY, REPLACE IT WITH A NEW BELT ASSEMBLY. AM-SAFE IS CONDUCTING THE OWNER NOTIFICATION. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT AM-SAFE AT 219-266-8330 OR MONACO AT 219-862-7211.

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.