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 > Your search for 'cummins isb' found 52 matches.

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  Subject Author Date Posted Forum
'99 Cummins ISB Diesel engine won't start.

Hi everyone. I have a new problem with my '99 HR endeavor that I need to get sorted out. I have a new problem that just started with the engine yesterday. So here goes... Got up to the fuel pump, shut it off and fueled up. Came back in to start it up and it usually cranks for about a second before starting. It cranked for about 5 seconds before it actually started. Weird. Thought really nothing of it until I got up to the lake. Pulled in, shut the engine down and five minutes later a better spot opened up so we wanted to move. Except for now the engine would just crank and crank without firing. So I tried several times cranking for maybe 30 seconds, give it a break for a few minutes and try it again. Still just cranks. I went to drain the fuel/water separator but only diesel came out, no water. Plus, the generator was running the whole time so I know it's not the fuel. Came back in, bumped the key a few times and nothing. So I turned the key on again, this time did not wait for all the warning lights to go out, and bam, it started. Fast forward to leaving the lake today...started just fine. Drove it home 30 miles and parked it to clean it out. An hour later, went to move it to dump the sewer and had the same problem twice more before I was able to park it in my building. So what gives? Has anyone had this problem? Could it be a fuel relay or solenoid? Acts like it's not getting any fuel.
glamisorbust 06/27/15 03:11pm Class A Motorhomes
RE: Is this the start of Workhorse again? Isuzu?

The engine produces 550 ft. lbs. of torque. The torque converter is the multiplier, making it capable of over 1000 ft. lbs. Just like any other engine/transmission combination. :W Now toss in the rear end gear and you can really confuse the issue. The fact of the matter is this engine does NOT make diesel like torque. Through gearing, etc, it can get a decent tow rating, but it will never have diesel like torque. The Cummins ISB, the smallest main stream diesel used today, starts at 660 #/ft of torque, and depending on the application goes all the way to 800 #/ft. There is nothing wrong with a gas engine, but to say this engine will compete with a diesel is stretching it a bit. People still care about the torque numbers these days? Funny. Only those who understand it. :W I wonder how many people know you have to know the torque # first to get to the HP number.
Bruce Brown 06/25/15 09:22pm Class A Motorhomes
RE: Is this the start of Workhorse again? Isuzu?

The engine produces 550 ft. lbs. of torque. The torque converter is the multiplier, making it capable of over 1000 ft. lbs. Just like any other engine/transmission combination. :W Now toss in the rear end gear and you can really confuse the issue. The fact of the matter is this engine does NOT make diesel like torque. Through gearing, etc, it can get a decent tow rating, but it will never have diesel like torque. The Cummins ISB, the smallest main stream diesel used today, starts at 660 #/ft of torque, and depending on the application goes all the way to 800 #/ft. There is nothing wrong with a gas engine, but to say this engine will compete with a diesel is stretching it a bit. People still care about the torque numbers these days? Funny.
OhhWell 06/25/15 08:35am Class A Motorhomes
RE: Is this the start of Workhorse again? Isuzu?

The engine produces 550 ft. lbs. of torque. The torque converter is the multiplier, making it capable of over 1000 ft. lbs. Just like any other engine/transmission combination. :W Now toss in the rear end gear and you can really confuse the issue. The fact of the matter is this engine does NOT make diesel like torque. Through gearing, etc, it can get a decent tow rating, but it will never have diesel like torque. The Cummins ISB, the smallest main stream diesel used today, starts at 660 #/ft of torque, and depending on the application goes all the way to 800 #/ft. There is nothing wrong with a gas engine, but to say this engine will compete with a diesel is stretching it a bit.
Bruce Brown 06/24/15 08:36am Class A Motorhomes
RE: Front End Diesel Class A

In the pecking order, it is just an A gasser that happens to have a (Cummins ISB) diesel engine. The rest of the chassis technology is A gasser. In the years these FREDs were produced, I would prefer the gasser, because the alternative GM and Ford . gas engines were more quiet at idle and cruise, a bit more powerful than the Cummins in the rare situations when peak power was needed. However, when you stomp on it to demand peak performance for a while, the Cummins diesel will top itself out at 3000 rpm, the GM up to about 4000, and the Ford a bit over 5000 rpm, which can be pretty noisy in an external cooler kicks in. People who have the Freds most likely prefer them, it is parallel to the gas vs diesel argument for passenger cars today.
tatest 06/17/15 04:09am Class A Motorhomes
RE: Reformed Toy Hauler member here. Your expertise needed

Watch the cargo carrying capacity. Easy to find MH with too little. And mind the chassis GVWR, GCWR, and gear ratio for what you are considering. We were considering the Winnie 27N vs the Newmar. 27N was 18k gvw and 4.88. Newmar is 20.5k and 5.38.Spot on. Even with a DP. They are not created equally. As an example a lower cost DP might have a Cummins ISB mated to an Allison 2500 transmission. The Allison is a bit of a weak link in the set up with a weight limit that may restrict your GCWR. Don't shop base on the hitch but do the math. The Thor Palazzo and Tiffin Red both fall into this category. Both are good rigs but they don't have the tow capacity you might need. The Palazzo literature as an example lists a 10K hitch but if you go by the listed GVWR and GCWR the chassis is limited to 5K Lbs. this is true that you cannot run with the Thor Palazzo at max GVWR and have anywhere near 10K towing however if you watch your weight you have plenty of room. Most normal priced DP units are in the same category. The Palazzo 33.3 has a shipping weight of about 21k with driver and fuel with a GCWR of 30K that leaves a lot of room for towing. With full fresh, grey,and black tanks and full propane with driver it weighs about 23k. Most people don't travel with full black or grey tanks. Depending on the use case you may not need 105 gallons of fresh water either. If you pack light you can still have plenty of tow rating left. You will never get that with a gas coach. The entry level DP units can work especially if you need to keep within a tight budget. Sure I would like to have a DP with a net tow rating of 10K, 15K or 20K but I can't afford $500K - $1.5 for a coach.
msturtz 05/26/15 07:44pm Class A Motorhomes
RE: Reformed Toy Hauler member here. Your expertise needed

Watch the cargo carrying capacity. Easy to find MH with too little. And mind the chassis GVWR, GCWR, and gear ratio for what you are considering. We were considering the Winnie 27N vs the Newmar. 27N was 18k gvw and 4.88. Newmar is 20.5k and 5.38.Spot on. Even with a DP. They are not created equally. As an example a lower cost DP might have a Cummins ISB mated to an Allison 2500 transmission. The Allison is a bit of a weak link in the set up with a weight limit that may restrict your GCWR. Don't shop base on the hitch but do the math. The Thor Palazzo and Tiffin Red both fall into this category. Both are good rigs but they don't have the tow capacity you might need. The Palazzo literature as an example lists a 10K hitch but if you go by the listed GVWR and GCWR the chassis is limited to 5K Lbs.
Dale.Traveling 05/26/15 07:13pm Class A Motorhomes
RE: Best year for a DP

My brother and I both have 99 HR endeavor's, my dad has a 2001 endeavor. All DP's, two with the cummins ISB 5.9 that run perfect, and one with the 7.2 CAT that also runs perfect. The build quality is beautiful. These were built to last.
glamisorbust 05/07/15 10:26am Class A Motorhomes
RE: fuel filters cummins isc

Mine is the cummins ISB and it has the two fuel filters inline just aft of the transmission on the right side. Easy access, the spinoff filter was easy, but the water separator won't stop draining fuel so I can't change it.
cgflyer 05/01/15 09:32pm Class A Motorhomes
RE: Class A Motorhome Engines

As to avoiding a V10, thats kind of silly. The V10 is and has been an excellent motor, and as of a few days ago Ford announced they are going to offering it in the medium truck market as well, territory previously you'd only find a diesel. That would be on account of the price of fuels. Diesel is 40 to 75 cents more per gallon. And the V10 motor has almost the same torque numbers. Well...yes and no. Fuel cost is definately an issue, the torque numbers have a bigger spread. The V10 is 362HP/457TQ in the Commercial Truck segment. The 360HP diesel offered (Cummins ISB) is 800TQ. If you opt for the smallest diesel offered, the 220HP ISB, it comes in at 520TQ. In the consumer Super Duty truck the new 6.7 PowerStroke offers 440HP/860TQ. My '13 PowerStroke is 400HP/800TQ and it's an animal. I don't see me ever going back to a gasser in a work type truck. An F150, sure.
Bruce Brown 04/13/15 06:10am Class A Motorhomes
RE: Winne Turbo Diesel or other V10 gas model???

In 1999 Winnebago made the Adventurer on a Ford chassis, a Chevrolet chassis and a Freightliner chassis. The freightliner had a 5.9 liter 275 hp Cummins ISB engine. It also had air suspension. One big drawback was the outside storage. The diesel model had only 95 cu. ft. of outside storage while the Ford and Chevrolet had 162 cu. ft. The freightliner had a GVWR of 23,000 lbs. while the Chevrolet had a 16,500 lb. GVWR, and the Ford had a 20,500 lb. GVWR. The 34' model was the only one with the diesel option. They made both a 35' and a 37' model, but they were only available on Ford chassis. Here's a link to the 1999 Winnebago Adventurer Brochure. http://winnebagoind.com/resources/brochure/1999/99-Adventurer-bro.pdf You might want to check the towing capacity. It might be only 3,500 lbs. Some friends of ours have one with over 200,000 miles on the odometer. They tow a Suzuki Samurai which is a pretty light vehicle.
Hikerdogs 04/08/15 02:44pm Class A Motorhomes
RE: Which engine for a used Winnebago Journey?

Myself and two of my family members own DP's of the same vintage. All holiday rambler endeavor's 38' in length. Mine and my brother's are both '99 models with the 275HP cummins ISB. My dad's is the C7 CAT with 330HP. I have driven all three. All three perform great. The CAT does have slightly more noticeable power but not a heap more. I like my cummins ISB. It has 660 LB/FT of torque. The power is more than adequate and pulls hills with ease, even heavily loaded. All of ours have the allison 3000 series 6 speed. Great transmissions! Mine gets a hand calculated 9.63 MPG. This is combined flat, in the hills, and quite a bit of generator usage. My dad's with the C7 gets about 7 max. So yes, he has more power, but he gets less mileage. Would I rather have the CAT? Not sure. I do like my fuel mileage better than his, and mine gets me where I need to go with ease. Pick the cleanest rig you can find and don't worry about the engine.
glamisorbust 04/02/15 09:14pm Class A Motorhomes
RE: Which engine for a used Winnebago Journey?

The Cummins ISB 5.9 Engine is a good engine and is generally combined with the Allison 2000MH trany. The ISB 275hp (5.9) is a flat land engine when in a coach. the Allison 2000MH tranny is limited to 600FP torque and Banks enhancement would exceed the limits of the tranny. Unless you are exclusively east coast flatlander like me, go with the 375hp Cat.
Gypsy1 04/02/15 02:38pm Class A Motorhomes
RE: What to do? Gas/diesel

I have had two P30 chassis class A's. One was an '82 fleetwood southwind 34', the other was a 1994 georgie boy pursuit 28'. The '82 had pretty good power and got about 6mpg. The '94 was LAZY when it came to power. Nowhere near the power of the '82. It also got about 6-7mpg. The heat of the engine and manifolds between the driver and passenger SUCKS. It would literally burn the side of your foot unless you were wearing boots. Fan noise, no exhaust brake, hydraulic brakes and no air ride are all things you'll deal with in a gas coach. I decided to sell the gas and try diesel. Wow, what a difference this is. Engine is now out back. I don't have to hear it or feel the heat. The driving went from white knuckle lumber wagon, to smooth and comfortable two finger driving as others have described. This thing climbs and descends hills with ease. I love the power of the DP and the exhaust brake. The air ride and brakes are the cherry on top. I have one large 13'6" slide that makes it feel like a mansion compared to one without a slide. The deal I found was a 1999 holiday rambler endeavor with the 5.9 275hp cummins ISB. The deal also came with a 2006 honda CRV tow behind, all set up for towing with brakes and the whole setup ready to go. I paid $32k for the whole thing. Oil changes are 17 quarts(less than $75 oil change and that lasts 10-15k miles). Change it once a year and you're good. I also have a 90 gallon fuel tank and onan 7500 quiet diesel generator that can run everything on board all at the same time. All the power you could ever want and it's pretty quiet. I have my RV loaded heavy with all my goodies. And I pull a trailer with all the sand toys that weighs about 6k. All of this and I am pulling down a hand calculated 9.63mpg. Holiday rambler endeavor's get my vote!
glamisorbust 03/26/15 10:16am Class A Motorhomes
RE: 275 hp Cummins

I also have a 5.9 275 cummins ISB in my '99 endeavor. I have been wondering the same thing. I ran into a gentleman at a gas station a few months ago that had a 5.9 cummins in his truck and swore up and down you could put a programmer into an RV with the same engine. He called it a smarty JR and said it cost about $500. He also said that the engine would go from a 275 hp to a 325 hp(or more) with just adding the programmer. Not sure if this is true, but might be worth buying if it actually works.
glamisorbust 03/21/15 11:48am Class A Motorhomes
RE: If you only had $40k to spend.........

Keep your eyes peeled and the deal of a lifetime will come your way. I started looking about this time last year, and by august 2014 the deal I was waiting for came my way. A gentleman wanted to sell his RV and toad together, would not separate them. So I purchased an immaculate 1999 holiday rambler endeavor DP with a 2006 Honda CRV toad for $32k. This was the whole package, towbar, brake system on toad, etc. Good thing I was also in need of a second vehicle!!! Mine has one large slide and air brakes, air ride, 5.9 cummins ISB, 7500 onan quiet diesel generator, all the options. We have used it 6 times since august(mostly week long trips) and we absolutely love it. A dream to own something this nice!
glamisorbust 03/19/15 09:58am Class A Motorhomes
RE: Fleetwood Excursion

I happened to glance at a 2015 Fleetwood Excursion 33D. It has a 300HP Cummins ISB 6.7L diesel engine. The coach I own has a 340HP Workhorse 8.1L gas engine. Both have the Allison 6 speed transmission. I'm no mechanic or engineer, but I can subtract. Would I not be losing 40 horse power? Would that some how be gained back because it is a diesel? Yes because you will be gaining a lot of torque at very low RPM. It would be a night and day difference driving. Not to mention its a pusher so it will be a quieter ride for you with the engine in the back.
mrkoje 03/08/15 12:06am Class A Motorhomes
Fleetwood Excursion

I happened to glance at a 2015 Fleetwood Excursion 33D. It has a 300HP Cummins ISB 6.7L diesel engine. The coach I own has a 340HP Workhorse 8.1L gas engine. Both have the Allison 6 speed transmission. I'm no mechanic or engineer, but I can subtract. Would I not be losing 40 horse power? Would that some how be gained back because it is a diesel?
Two Hands 03/07/15 05:46pm Class A Motorhomes
RE: What would you buy for a $175,000?

This is only 33' short by 7' of your wish, but what a deal: http://www.happydazerv.com/default.asp?page=xInventoryDetail&id=864742&p=1&vc=class%20a%20diesel&s=Year&d=D&vt=motorhome&fr=xallInventory In case the link doesn't work, it's a 2013 Fleetwood Excursion 33D The only problem is that it is a Cummins ISB-6 which is what is in a pickup truck and non-sleeved. Need to go to an ISC or bigger to get sleeves and more power. It will be a little under powered. but itis a good deal for someone that can over look the engine. Does that mean I need to sell my 42' with the same engine that gets 10mpg and goes down the freeway just fine and up every hill thrown at it? And it still can pull 10,000lbs. Wonder how this forum got so many Cummins engineers on it. And Freightliner should be sued for ordering rigs not capable ( according to some here) of performing as they are pushing the engines too hard. Somewhere along the line the measure of a MH capability is how fast it goes up a hill. For what it's worth the engines (ISB) were in many different platforms before they were ever put in a pickup truck.
et2 02/13/15 06:23am Class A Motorhomes
RE: What would you buy for a $175,000?

This is only 33' short by 7' of your wish, but what a deal: http://www.happydazerv.com/default.asp?page=xInventoryDetail&id=864742&p=1&vc=class%20a%20diesel&s=Year&d=D&vt=motorhome&fr=xallInventory In case the link doesn't work, it's a 2013 Fleetwood Excursion 33D The only problem is that it is a Cummins ISB-6 which is what is in a pickup truck and non-sleeved. Need to go to an ISC or bigger to get sleeves and more power. It will be a little under powered. but itis a good deal for someone that can over look the engine.
shaneperch 02/11/15 06:13pm Class A Motorhomes
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