2001 Newmar Mountain Aire: common problems

Owners of the 2001 Newmar Mountain Aire filed 5 complaints with NHTSA, most often about electrical system and engine. Details by component below, with sources.

Key figures

Owner complaints: 5

What fails most often

1 Electrical system 20% of all complaints
2 Engine 20% of all complaints
3 Equipment 20% of all complaints
4 Fuel/propulsion system 20% of all complaints
5 Fuel system 20% of all complaints
6 Service brakes 20% of all complaints
7 Structure 20% of all complaints
8 Tires 20% of all complaints

Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Electrical system: 1 complaints (20% of all).
Engine: 1 complaints (20% of all).
Equipment: 1 complaints (20% of all).
Fuel/propulsion system: 1 complaints (20% of all).
Fuel system: 1 complaints (20% of all).

Symptoms owners describe

How many of the 5 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

fuel system, fuel smell1 · 20%
loss of power / limp mode1 · 20%
stalls while driving1 · 20%
steering or power steering problems1 · 20%
vibration1 · 20%
warning lights, check engine1 · 20%

Components owners complain about

Component	Owner complaints	involving a crash	Technical service bulletins (TSB)
Electrical system	1	0	0
Engine	1	0	0
Equipment	1	0	0
Fuel/propulsion system	1	0	0
Fuel system	1	0	0
Service brakes	1	0	0
Structure	1	0	0
Tires	1	0	0
Wheels	1	0	0

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

After 20 miles with no issues I attempted an acceleration and again it lost power, skipping/missing and backfired. Pulled into a rest area and shut down for 20 minutes. On restart a check engine light illuminated. Obdii indicated that it was a p0342 crankshaft position indicator sensor issue.
Electrical system · 2014-10-05 · NHTSA complaint #10641506
I carried my 2001 newmar mountain aire, to danny's rv repair in denton, tx dueto recall 51101-c workhrse refused to honor the (a) right front part# w8001709, $50.91 . And the labor for right rear abscode appeared on test drive) and the rf, lr, labor @ 29.40 each= $88.20 .
Service brakes · 2011-08-11 · NHTSA complaint #10418562
Tl* - the contact's dometic refrigerator in her 2001 newmar mountain aire had a petite crack in the boiler tube. The crack caused a sufficient amount of solution/gas to be released into the air. The contact has replaced the dometic refrigerator which is also listed in the rv magazine as a recall.
Equipment · 2006-12-22 · NHTSA complaint #10176835
There was a vibration in the front end. The dealer found defective wheels/bad goodyear tires. When the tank was filled, fuel leaked at the filler hose. It was discovered, that the filler hose that went to the tank was rotten. The fuel hose was replaced.
Fuel system · 2003-10-31 · NHTSA complaint #10044839
Coach 97545 mountain aire rv. The revreational vehicle was built on a ford frame and cannot be fixed.
Structure · 2003-08-14 · NHTSA complaint #10032403

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

20032
20061
20111
20141

Comparison

By complaint count this model year ranks 14,282 of 36,656 model years in the NHTSA data (top 39% most complained about).

On average one model year of the Mountain Aire has 2 complaints (27 years in the data). This year has 5, above average.

What to check before buying

Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Engine. Cold start, unusual noises, oil leaks and engine codes.
Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
Fuel system. Fuel smell, leaks, rough running, fuel-system codes.

Other years of this model

Questions and answers

What are the most common problems with the 2001 Newmar Mountain Aire?

Owner complaints to NHTSA most often mention: electrical system, engine, equipment. Total complaints: 5. The most frequent symptoms in complaint texts: fuel system, fuel smell (20%), loss of power / limp mode (20%), stalls while driving (20%).

How many service bulletins (TSB) were issued for the 2001 Newmar Mountain Aire?

NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2001 Newmar Mountain Aire from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2001 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.