No New Posts Air System

All about your air intake system—from side of the coach, air filter, turbo, CAC and plumbing.

181 Posts
35 Topics


Last post by Captpar
in Re: Air gauges
on July 30, 2020, 10:20:59 AM

No New Posts Cooling System

All about your cooling system—water pump, thermostat(s), coolant and coolant testing, recommended maintenance, cleaning the CAC and radiator, etc.

499 Posts
92 Topics


Last post by Journey
in Re: Radiator Hoses, Regu...
on Today at 04:41:17 PM

No New Posts Driving and Operation

The "how-to" of driving a diesel pusher. How to improve MPG, how to climb and descend a grade, recommended engine warm up and shut down, etc.

222 Posts
30 Topics


Last post by dbhutchins
in Re: Climbing A Grade
on September 02, 2018, 08:58:17 AM

No New Posts Engine Diagnostics

Modern Engine Diagnostics use a standardized digital communications port to provide realtime data in addition to a standardized series of diagnostic trouble codes, or DTCs, which allow one to rapidly identify and remedy malfunctions within the vehicle. These and other Engine Diagnostics topics are posted in this category.

410 Posts
69 Topics


Last post by pfhays
in Re: recommendations for ...
on September 19, 2020, 04:51:22 PM

No New Posts Engine Electrical

The engine fuel system and wiring diagrams. For alternator and coach wiring discussion, see Other Systems.

156 Posts
26 Topics


Last post by trekker01
in Re: Lost all house power
on February 21, 2020, 04:35:37 PM

No New Posts Engine Recalls

Partial summary of CAT engine recalls is included in this category.

3 Posts
2 Topics


Last post by Brett Wolfe
in Re: Cummins ISX 650
on November 07, 2016, 02:22:42 PM

No New Posts Engine Specifications

Specifications for diesel engines will be covered for each manufacturer. Caterpillar 3126 & C7, 3176B &C9 through C13 and C15 specifications can be found in this category, as will specifications for Cummins ISB, ISC, ISL & ISM engines.

154 Posts
38 Topics


Last post by David.e.atherton
in Re: Source for Diesel En...
on June 19, 2020, 08:01:48 AM

No New Posts Exhaust Brake/Engine Compression Brake

Exhaust brake maintenance, troubleshooting and when to use.

80 Posts
20 Topics


Last post by Brett Wolfe
in Re: Exhaust engine brake...
on February 06, 2020, 08:01:24 AM

No New Posts Fuel System

All about fuel filters, priming the fuel system, fuel additives, etc.

454 Posts
76 Topics


Last post by trekker01
in Re: The DEF Level, Qual...
on August 27, 2020, 05:26:17 PM

No New Posts Lubrication System

All about oil, your lubrication system, oil capacities, dip stick calibration, etc.

262 Posts
57 Topics


Last post by Charlie/Susie
in Re: FYI - Found Rotella ...
on March 30, 2020, 04:58:17 PM

No New Posts Other Systems

Discussions about electrical, engine driven A/C, belts, belt tensioners, etc.

406 Posts
81 Topics


Last post by pfhays
in Re: Hopefully a simple f...
on September 01, 2020, 02:24:52 PM

No New Posts Routine Maintenance

Discussions about recommended maintenance issues: Valve adjustment, fan hub grease zirk, etc.

290 Posts
64 Topics


Last post by Brett Wolfe
in Re: Freightliner brake d...
on January 29, 2020, 09:24:40 AM

No New Posts Storing Your Coach

What to do when storing your coach to minimize problems. Fuel additives, full/empty tank, etc.

62 Posts
10 Topics


Last post by wharris107
in Re: Motor home stored fo...
on August 12, 2017, 03:27:57 PM

Ask Dave

No New Posts Retired CAT Diesel Mechanic Guidance

Dave Atherton has been a great help in tracing down problems with both CAT and Cummins engines. He has diagnosed several chronic problems and proposed solutions for them. This board enables you ask Dave for his advice. Dave has worked with diesel engines ever since his vocational training started in high school. He began working for Caterpillar in 1970, where he worked as a field mechanic on heavy equipment. Dave has been schooled by Caterpillar in their in-house training programs on diesel engines, fluid power (hydraulic mechanics), transmissions, final drives, and air systems. Dave learned to operate much of caterpillar’s heavy equipment, because he needed to sign off on the repairs that he had done. He also has training in welding, both gas and Tig. Dave has worked as a master mechanic for a private contractor for 40 years until he retired in 2013. He is still working with Caterpillar part time, and is a consultant on Caterpillar engine problems.

4 Posts
2 Topics


Last post by trekker01
in Re: c7 Engine removal
on June 22, 2020, 09:09:58 AM

No New Posts Hey Dave, I've Got a Problem

Got a problem and don't know what to do? If so, post it here and Dave will respond. Only you and Dave will be able to comment on the problem. All others will be able to view the discussion but not comment.

Moderator: David.e.atherton

460 Posts
86 Topics


Last post by David.e.atherton
in Re: CAT 3126B 330hp, loo...
on August 18, 2020, 02:39:12 PM

General Category

No New Posts Welcome!

The Diesel RV Club is an FMCA chapter founded on the assumption that any member interested in Diesel engines would be interested in knowing more about them-- how to maintain them, how to maximize performance, and how to keep repair costs to a minimum. Socializing and associating with members with similar equipment was another advantage. Our Club Rallies (two weeks prior to FMCA International Conventions) focus on learning more about maintaining them as well as having a good time.

49 Posts
16 Topics


Last post by ziggyh
in Re: Winter route through...
on December 08, 2017, 11:47:13 PM

No New Posts How to Guides

Diesel RV Club Forums 101 - Having trouble negotiating the forums? Ask questions on how to use this website here. Be sure and read the how-to posts!

47 Posts
12 Topics


Last post by David.e.atherton
in Re: c-7 air engine air ...
on October 08, 2019, 08:29:05 AM

Child Boards: How to Post Topics and Replies
No New Posts General Diesel Discussion

Feel free to talk about anything diesel engine related in this board.

151 Posts
45 Topics


Last post by David.e.atherton
in Re: Broken Down in Portl...
on September 15, 2019, 03:14:36 PM

Child Boards: Diesel RV Club Membership, Caterpillar Dealers, Caterpillar Dealer Locator, Cummins Engines - Motorhome, Cummins Service Locator, Mercedes Diesel Engines - Class A Service Locations, Mercedes Benz Sprinter Class Engine Service, Navistar Motorhome Engines, Navistar Service Locator, Links of Interest

Diesel RV Club Valued Partners

No New Posts Independent Service Centers

The service centers in this category are independent businesses offering a full range of motorhome services.

0 Posts
0 Topics

Child Boards: Accelerated Diesel, Leisure Coachworks, Luxury Coach Services, Oregon Motorcoach Center, Premier Motor Coach Services, RVIncidents, Inc.
No New Posts RV Parts & Supplies

The following businesses offer discounts on the purchase of RV and motorhome parts and equipment.

0 Posts
0 Topics

Child Boards: Boogey Lights, O’Reilly’s Auto Parts, Proteng Distribution, RV Glass Solutions
No New Posts Caterpillar Dealers

The following Caterpillar dealers offer a 10% discount on parts and labor for motorhome services. Some may place a limit on the dollar amount of the discount.

0 Posts
0 Topics

Child Boards: Carolina CAT, Cashman Equipment, Gregory Poole Equipment Company, MacAllister Power Systems, Mustang Caterpillar, Yancey Power Systems
No New Posts Cummins/Onan Engine Owners

Cummins Power Club — Owners of an RV with a Cummins engine or an Onan Generator, it makes sense to be a club member. Members receive a 10% discount on Cummins Genuine Parts and Valvoline products. The discount also applies to service repairs and maintenance

0 Posts
0 Topics

Child Boards: Cummins Power Club
No New Posts Mercedes-Benz (Sprinter Dealers)

The following Mercedes-Benz dealers offer discounts on parts and or labor for services on Sprinter chassis motorhomes.

0 Posts
0 Topics

Child Boards: Capital Eurocars, Mercedes-Benz of Arrowhead (Sprinter Dealer), Mercedes-Benz of Danbury (Sprinter Dealer), Mercedes-Benz of Naples (Sprinter Dealer), Mercedes-Benz of Westminster (Sprinter Dealer)
No New Posts Freightliner Oasis Service Centers

The following Freightliner Oasis Service Centers offer a 10% discount on parts and service.

0 Posts
0 Topics

Child Boards: ATC - Freightliner Tulsa, Orlando Freightliner, Stoops Freightliner, Truck Centers of Arkansas, Truck Country of Decorah
No New Posts Other Types of Services

The following businesses provide special products or services to the motorhome community.

0 Posts
0 Topics

Child Boards: Mobileye, Overland Insurance Services
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Diesel RV Club, an FMCA Chapter - Info Center

Recent Posts Recent Posts

Re: Radiator Hoses, Regulator, Replacement by Journey (Cooling System)
Today at 04:41:17 PM
Radiator Hoses, Regulator, Replacement by trekker01 (Cooling System)
Yesterday at 03:20:59 PM
Re: recommendations for OBD sensor by pfhays (Engine Diagnostics)
September 19, 2020, 04:51:22 PM
Re: recommendations for OBD sensor by car2ner (Engine Diagnostics)
September 19, 2020, 02:46:11 PM
Re: recommendations for OBD sensor by trekker01 (Engine Diagnostics)
September 15, 2020, 05:16:50 AM

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