wolfe10

Coolant requirements have not changed. Either "low silicate for diesel with added SCA" or the new generation OAT-based coolants are approved. Think of the OAT-based coolants at "maintenance-free". 6 years, zero checks, no SCA to monitor and add, etc. Both Cummins and Caterpillar as well as other suppliers have had the OAT-based coolants available for over a decade.

May be as simple as reinserting the gang plug. May be the shift pad, wiring or ECU. Start with the easy/inexpensive stuff.

Fault code 23-12 is the transmission shift selector not communicating properly with the ECU. Start by checking connections to the back of it (the selector pad) and to the ECU. If that doesn't do it, just google Allison code 23 12. Lots of troubleshooting advice. Really depends on your electrical diagnostic abilities. Worse case is there is a tech in the Fort Worth TX area who specializes in diagnosing and fixing Allison shift pads and ECU's: Allison ECU and shift pad repair. 866 439 9779 John Kopalek.

If the first push of the up and down arrows brought up OL, all you do is push them again and it WILL bring up d-1 and any diagnostic codes. Again, a little surprised that a 1995 has the "check oil level from the shift pad" feature, but that is a good thing.

STOP. Unless you have driven 25+ highway miles, low oil temperature is correct/normal. No need for an IR gun or other fire drill. Did you push the up and down arrows a SECOND time. That would bring that generation of Allison equipments (you are at the very first of "check oil level from the shift pad") diagnostic codes. From my post above: ... the first push of the up and down arrows brings up O-L for oil level. In this case, just push the up and down arrows again to bring up the diagnostic codes.

DEAUMONT@EZSCALE.COM, Welcome to the FMCA Forum. This from the FMCA website (yes, you have to be signed in): https://site.fmca.com/rv-tires-discounts Click on "How it works". Step 2 gives you a link to Michelin dealers approved for the program. HOW MICHELIN WORKS Step 1: Find your tire size and get quote. Use the Tire Savings Calculator to get available tire pricing in the size you need. Step 2. Find your nearest commercial Michelin Advantage RV tire dealer. Go to https://www.michelintruck.com/tools/dealer-locator/#/ and enter your zip code in the dealer locator. The dealers will be listed in the order closest to your location. Select the dealer that best suits your tire needs. NOTE: To purchase Michelin or BF Goodrich tires for your light truck or passenger car, you must use an authorized commercial Michelin dealer that sells all three types of tires: commercial truck, light truck, and passenger car AND that accepts the Michelin Advantage Program. Step 3. Contact the dealer to determine they have the tire you want. When you contact the Dealer to determine they have the tire you need for your RV, Passenger Car, or Light Truck, make sure you ask for the five-digit MSPN number for the tire you are purchasing. And verify that you have the proper size tire for your vehicle. NOTE: All road tires with a maximum load capacity greater than 3500 pounds are subject to an F.E.T., or Federal Excise Tax. Generally this applies to medium truck tires and up. The F.E.T. is listed separately on the price lists above. Step 4. Schedule the installation with your dealer. Contact the dealer to check on the availability of the specific tire that you require. Make sure to confirm that they participate in the Michelin Advantage Program. Tell the dealer you will be purchasing your tires through the Family Motor Coach Association’s advantage account. FMCA's Michelin Advantage account number, or ship-to number, is 1326516. You will need to provide this number to the dealer. You must also provide your e-mail address. Your FMCA membership number will act as your purchase order number. Step 5. Register your credit card with Michelin. To pre-register your card, contact the Michelin Advantage Program at (888) 532-6435 (Monday through Friday from 8:30 a.m. to 5 p.m. Eastern Time and select option 1 from their menu). To register your card afterhours, call Michelin at (800) 847-9855. Your card information will remain on file for 30 days and will be set up for one-time use only. If your tire transaction has not been completed within 30 days, you will need to re-register your card. If you make additional purchases in the future, you will need to call and preregister your card again at that time. Step 6. Complete the purchase. After the tires have been installed, you will need to provide the dealer with your VISA, MasterCard or American Express credit card information to complete the transaction at the servicing dealership. This information must match the card information you registered with Michelin corporate. The tires will be billed to your card by the Michelin Corporate office. Most dealers will charge you separately for installation and labor. Any fees for mounting, balancing, and tire disposal are quoted by the servicing dealer and are not discounted by the program. You must also pay the state and local sales taxes that apply in the jurisdiction in which the tires are purchased. NOTE: Once you have arrived at the dealer for service, walk around the coach with the service writer or salesman. Note any existing damage to the coach and/or wheels. Verify the tires are the ones you asked for and that you are happy with the manufacture date of the tires. For warranty issues, please contact Michelin Consumer Care at 1-800-847-3435 or visit www.michelinrvtires.com You should receive your invoice within seven to ten business days from the date of purchase. The transaction is now complete. Enjoy your new tires! FMCA's Tire Savings Program is currently available only in the US. DOWNLOAD PRINTABLE VERSION OF INSTRUCTIONS

Yup, idle speed too high (for whatever reason) and all the Allison shift pad will do is BLINK. It is smart enough to protect itself.

To check for transmission codes (unrelated to engine light/engine codes on your year model): Ignition on, engine OFF Push the up and down arrows on the Allison shift pad at the same time. That should bring up d-1 (for diagnostic code 1). It will then give you a two digit code which you can look up in your Allison owners manual or on Allison's website. If there is a code, after copying it down, push the mode button to bring up d-2. Continue until you get a d- "some number" and - - which means there are no other codes. On later models, the first push of the up and down arrows brings up O-L for oil level. In this case, just push the up and down arrows again to bring up the diagnostic codes. Let us know what you find.

CHASBURTON@GMAIL.COM Welcome to the FMCA Forum. I would contact the manufacturer of your base plate for their "approved installer" list. If you have not purchased one yet, ask a few of the big ones/look at their installation instructions on their website to see which one you want. Then contact them or look at their on-line dealer list.

If engine idle speed is too high, the Allison will NOT go into gear. Check that first. Have you checked for diagnostic codes (from driver's seat using shift pad? If you need the "how to", let us know. It takes less than 2 minutes. One of the most common issues is that the connections at back of shift pad and/or Allison ECU are a little loose and not communicating well. If that is the case, DeOxit is an excellent product to use on the connections.

OK, did a little research. This from Freightliner-- shows a Cummins 5.9 liter ISB: https://cdn.fccchq.com/specsheets/5b7abfb0cf1da258f28db0a8/2006-Tiffin-Allegro-Bay.pdf

And, it quite likely is two engine sizes smaller-- an ISB. Again, we need to know.

jeananded, Welcome to the FMCA Forum. Please tell us what engine you have.

It might help to tell us more about your coach. Some may be willing to drive a late model but not take a chance on a cross country trip in a 25 year old coach with 9 year old tires.

If the coach meets your needs (size, layout, etc) KEEP IT. You know it well and have it "up to snuff". OR, get a newer coach and likely go through the same kind of teething issues. All three of the DP's we have owned over the last 20 years have required more maintenance to bring them "up to snuff" in the first 6 months than in quite a number of years thereafter.

https://www.cummins.com/customer-assistance Be sure to include your engine serial number.

Look forward to what Peter finds as he digs into this.

poerjrjr, Welcome to the FMCA Forum. Is it the panel that is wallowing out or what it is screwed into? If the panel itself, can you make a substitute panel from luan or other thin plywood and stain/paint to match the interior decor?

The answer is "it could" (make a difference). Heat expands/cold contracts. So cold can cause some things to leak worse. But, more pressure in both oil and coolant systems with engine running, so somethings leak worse then (not related to pressure test, but very relevant for when you are driving).

I suspect a much less "robust" Allison with a 150 HP 1990 rig. Might be an AT545.

Peter, Best advice is to e-mail both Allison with your transmission model and serial number AND Cummins with your engine serial number to verify that you both can install an exhaust brake and then from Cummins the maximum backpressure the engine was designed to accommodate. It may be that you could fit one, but the exhaust springs would limit backpressure to where it would not be effective/not worth the money.

blairarbogast, Welcome to the FMCA Forum. Since you are going with Roadmaster tow gear, I would sure recommend calling Roadmaster to inquire about a baseplate. They will be one of the first to know if the 2018 baseplate works on the 2019.

And, now???

With the Caterpillar C9, there was an ECM reflash to address this. Check with any Caterpillar dealer.

tkcoffman, Welcome to the FMCA Forum. What engine? Some have a "protect the engine" such that they will not make much power until up closer to operating temperature. I seem to recall that there was a problem with faulty sensor or ECM setting on some that would limit power past when it should be making good HP. Have you checked for diagnostic codes?