sunlover19

That's a good point about the exhaust temperature gauge, mine doesn't have one that tells you what but l will have to check into what's involved in installation of one, what are the temperature recommendations range for most ?

Yes l do downshift as needed to not lug the engine and improve coolant flow. I also talked to someone while camping in St. George Utah and they leave their rear engine access doors or louvered panel open going down the road he said it let's more heat out but l don't know if l will try that or not.

I was recently talking to a couple of diesel mechanics regarding overheating which l have on my ISL 400 2005 now the CAC, radiator, and air conditioning condenser are all cleaned l also put a 1" spacer to allow more air flow. They said to turn on the heater so the coolant can flow through the hoses and heater core to absorb more heat and it made a big difference so far on my rig

I recently watched a YouTube video from the wrap artist and was very interesting, you could contact them and they can hook you up with someone near you as stated on the video. Wrapartist.com in Tennessee phone number 615 802 9727 good luck

Thanks, l will have to pick up a bottle or two. Friend of mine who has the same motorhome put a spray mister on his but I'm not interested in doing that, l thought about putting an electric fan on the condenser side and blow air through the stack in addition to the hydraulic fan on the other side.

Will be checking that good point

The model is a Mandalay model E 2005 l would think the dealer used the correct mixture of coolant almost 9 gallons it holds. I do keep the rpms at 2000 to keep it flowing while downshifting while climbing

Even after it was replaced it still did but it took it a lot longer to heat up but l heard that they didn't put a large enough radiator in these, whether that is true or not who knows from that rumor. I appreciate everyone's tips for me to check out.

Thanks for that tip Bill on the type.

I don't know any of the history on this rig since we bought it so l I'm not sure of its service history, l assume it being a 2005 it would use standard transmission oil but maybe it's that transyn type not sure but the Cummins dealer said it would take 2 trans oil changes if he goes with the transyn type is that a correct assumption ? Seems that if it had proper service on it the oil would be ok but it's a 15 year old rig so maybe not so just change it when we get back

All good points for me to check into more when we get back home. The coach only has 36,000 miles, l had the coolant changed recently, when we bought the rig 3 years ago l discovered it had a bad ECM module which was replaced and flashed by Cummins it wouldn't tell the hydraulic pump fan to speed up or slow down so it ran on slow speed, I will have to get under the rig and do some searching.

I do believe that they undersized the radiator in these rigs, another friend has the same type but a 2006 model with twice the miles mine has on it. They are both side radiators also, it's fine till you start climbing, yes the outside temperatures are in the 90s too which doesn't help, l had gasser motorhomes pass me on the Baker grade heading to Las Vegas l do keep the rpms at 2000 to help, only towing a small car with us. That's why l thought if a trans cooler would help pull some heat out because of the undersized radiator. Thanks for all your help and suggestions

Has anyone had an additional transmission cooler added to an Allison 3000 Class A ISL 8.9 400 hp / 1200 torque Freightliner 2005 if so what and where did you get it ?

I have a 2005 Mandalay model 40 E also, is there any Cummins service centers near you ? I have good luck with their service work.

I use liquid dynamite diesel fuel additive www.dynomitediesel.com in my 2005 ISL 400 and have had great results with it. One 16oz bottle treats up to 400 gallons Disperses water, boosts cetane levels, prevents fuel gelling, etc.Tier 4 complaint/ DPF approved

We are all here to help each other, not steal someones posting. Thanks to Herman for helping me and to Admedic also.

Thanks Herman for that website, I will get the information on mine next time I go down to the coach and research it

I have a King in motion satellite on my rig, looks nice up there but is for Direct TV only as I have checked and is not programmable to Dish network so I just use my portable Dish satellite antenna and connect it to it the roof cable coming off the King unit, nice to have it that way in case there is an obstruction blocking the signal then I can find a clear access to the sky. Good luck and happy camping When I bought the coach I brought up the Dish receiver so they could set it up, but I was told it wouldn't work that it was Direct TV only so I contacted an RV satellite company and he said it wouldn't work either, I think its a King In Motion 3000 model but not sure without looking up in the paperwork. Not a problem anyway since I had the Dish set up from our previous motorhome which has been handy to have when we have parked in some trees or other obstruction. Always ready to go and keep those wheels moving everyone !!!

I have a King in motion satellite on my rig, looks nice up there but is for Direct TV only as I have checked and is not programmable to Dish network so I just use my portable Dish satellite antenna and connect it to it the roof cable coming off the King unit, nice to have it that way in case there is an obstruction blocking the signal then I can find a clear access to the sky. Good luck and happy camping

As a former twin engine motoryacht owner there are alot more gauges, vessel traffic, weather and tide conditions etc. to watch out for and your quote makes it sound like I'm not "alert" at operating a motor coach

Thats so true, most times we have our toad behind us and drop down to 35 to 45 mph depending on incline and conditions, can't drive it like my Corvette !!!

I had some overheating on my 05 Mandalay model 40E 400 ISL side draft radiator also and the Cummins dealer discovered that it had a bad ECM ( electronic control module ) which was not telling the hyd pump fan to speed up when needed for extra cooling, they installed a new ECM module and it had to be flashed, it does cool much better now but yes they didn't put a large enough radiator in it so I just downshift to keep the RPMS up for a better flow.

Thanks for all your tips everyone, my coach is an 05 Mandalay model 40 E still learning all the tricks from switching from a gasser to a diesel pusher. Hope to see any of you at Newport Beach, CA. February 27th to March 1st Chapter get together.