Community Forums

4tfamily · 08-08-2013, 12:55 PM

Our 2008 Excursion 40X needs the fuel or water separator filter(s) changed. Not sure what I'm talking about, as you can probably tell. We're trying to get a quote from the RV service place where we have it stored, and they said they'd need to know how many filters in order to give us a quote. Where can we find this information? It's a Cummins 360 engine, if that helps.

Also, we were told that old filters could cause the engine to overheat. Does that sound plausible? We had an overheating problem where the entire coach shut down on us at one point, and adding a little water to the radiator fixed it, but it was still threatening to overheat several times after that.

Any advice?

Thanks!

mel s · 08-08-2013, 01:50 PM

Quote:

Originally Posted by 4tfamily

Our 2008 Excursion 40X needs the fuel or water separator filter(s) changed. Not sure what I'm talking about, as you can probably tell. We're trying to get a quote from the RV service place where we have it stored, and they said they'd need to know how many filters in order to give us a quote. Where can we find this information? It's a Cummins 360 engine, if that helps.

Also, we were told that old filters could cause the engine to overheat. Does that sound plausible? We had an overheating problem where the entire coach shut down on us at one point, and adding a little water to the radiator fixed it, but it was still threatening to overheat several times after that.

Any advice?

Thanks!

I would ask the service tech from the RV service place to look at your filters and then give you a quote....IMO, you should not have to know that information to get an accurate quote, and the correct filters, from a "professional".

BTW, I don't believe that fuel filters can have anything to do with "overheating" issues.
A raditor/CAC, (charge air cooler, inter cooler) that needs cleaning is the most common cause of overheating.
Ask the service tech to check that/those as well.

Mel
'96 Safari

stuhly · 08-08-2013, 02:16 PM

I use a mobile truck service mech to do my service on my C7. Does good work and the price beats the heck out of an RV place.

MJFZ · 08-08-2013, 03:57 PM

Why not take the coach to your local Freightliner shop. Have them go through the needed maintenance items with you.

Mike

JC2 · 08-08-2013, 03:59 PM

Quote:

Originally Posted by mel stuplich

I would ask the service tech from the RV service place to look at your filters and then give you a quote....IMO, you should not have to know that information to get an accurate quote, and the correct filters, from a "professional".

BTW, I don't believe that fuel filters can have anything to do with "overheating" issues.
A raditor/CAC, (charge air cooler, inter cooler) that needs cleaning is the most common cause of overheating.
Ask the service tech to check that/those as well.

Mel
'96 Safari

I wholeheatedly agree and if they can't/won't, I would take my business elsewhere. No patience with incompetence when dealing with these expensive toys.

4tfamily · 08-08-2013, 04:23 PM

Anyone else care to offer an opinion on the overheating?

Genset · 08-08-2013, 04:45 PM

It is highly and very unlikely your heating issue is from a fuel filter condition, low power would be a filter sign. Over heating is from lack of cooling for what ever reason

Coma · 08-08-2013, 04:59 PM

It's a rear radiator? Probably has a dirty radiator/charge air cooler due to the breather tube.

mel s · 08-08-2013, 05:13 PM

Quote:

Originally Posted by 4tfamily

Anyone else care to offer an opinion on the overheating?

See my post (#2)
Mel

powerboatr · 08-08-2013, 05:45 PM

it would be a pretty far stretch to say an old fuel filter would cause overheating
but....if its clogged and your on the throttle because of low power...........nope you need fuel to create power and heat
might run bad, but overheating is probably not going to happen, it could but i would say it would be very low on the list at maybe 250.

dirty radiator, bad water pump, low coolant, to high or to low oil levels, oil sludged up, water pump belt missing
radiator fans not working, right foot to the floor climbing a hill or long grade, plugged air filter, GVW,

your engine came form cummins with at least one fuel filter
the chassis or the coach builder may have added one more
your coach builder can tell you, and F/L 800 service number can give you the filter numbers it left them with

Heater · 08-08-2013, 06:14 PM

Picking mine up tomorrow from the shop. The shop Forman said that when they cleaned the charge air cooler with purple power it looked like someone had spilled gallons of oil. Btw my slobber tube is extended and I still have this issue. It's from years of use with out cleaning.

ditto · 08-08-2013, 07:54 PM

Try Calling northeast cummins in Dedham MA.

bdpreece · 08-08-2013, 09:58 PM

Quote:

Originally Posted by 4tfamily

Anyone else care to offer an opinion on the overheating?

Your coach is most probably a rear radiator coach Any rear radiator coach regardless of manufacturer or the type of engine need to have the radiator and CAC cleaned at least once a year. If you do a search on cleaning the rear radiator or cleaning the radiator on this forum you will find volumes of information on this subject. As far as the filters are concerned on my coach one is located in the side compartment on the drivers side towards the rear where the hydraulic jack reseviour is there will most probably be a filter there then if you have doors in the rear cap look for one on the rear passenger side. Both are most probably easy to access .

mel s · 08-09-2013, 10:22 AM

Quote:

Originally Posted by bdpreece

Your coach is most probably a rear radiator coach Any rear radiator coach regardless of manufacturer or the type of engine need to have the radiator and CAC cleaned at least once a year.

bdpreece
I have heard the "once a year" recommendation before but based on my experience once a year is overkill.

My rear radiator and CAC were cleaned for the first time in '05, (at 78,000 miles), when I had an overheat issue.
The CAC was plastered with a "black oily grease like" substance, (with only a 12-15" diameter opening remaining in the center).
It that time I relocated the "slobber tube" and added a shroud around the perimeter of the back of the radiator, (between the radiator frame and the rear fiberglass cap), to force the hot air exiting the radiator out through the grill, (thereby preventing the hot air from "short cycling" around the radiator/CAC and back through the CAC/rardiator?).

Last week they were cleaned again, (for only the the second time in 17 years, 132k miles).
After those additional 8 years, (54k miles), I found that everything was still relatively clean....(I would guess I could have driven a few more years before a cleaning was necessary).

Mel
'96 Safari, 250hp 3126 Cat