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07-08-2014, 03:51 PM
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#1
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Member
Join Date: Feb 2014
Posts: 35
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journey DL caterpillar 3126 power loss
After two months of sitting my 2002 Winnebago journey powered by 3126 caterpillar started a-ok as always however after pulling out I noticed there was no power even pressing accelerator to the floor. No indicators lights either. After riding around the block for 30 minutes power started to come back then all at once it ran as a-ok. This has happened two times now in the last year?
Thank-you for your help in this matter.
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07-08-2014, 03:58 PM
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#2
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Community Moderator
Join Date: Aug 2011
Posts: 6,200
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I have heard of a stuck exhaust brake causing symptoms you describe. Needs to be lubricated once a year with special high temp grease made for exhaust brakes.
Driving around the block must have jarred it loose finally.
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07-08-2014, 04:22 PM
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#3
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,486
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Welcome to iRV2.
Bad connection to the throttle positioning sensor could also be a problem.
My TPS is on the back of the pedal , track the wiring to the main harness under the dash, disconnect and inspect the wiring , possible damage from humidity , from cleaning carpets.
Her is some info on our engines, including tests for the TPS. 
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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07-09-2014, 06:51 AM
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#4
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Senior Member
Join Date: Jul 2010
Location: Visalia, CA
Posts: 157
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Fuel Filter
Change both filters and see what happens I change them once per year on our 3126B never had any problems with power (2000 Winnebago UA 40J).
I also carry a spare filters.
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07-09-2014, 11:23 AM
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#5
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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Also check and lube the waste gate
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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07-09-2014, 12:21 PM
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#6
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Senior Member
Appalachian Campers
Join Date: Sep 2002
Location: Dixie !! (north Georgia) USA
Posts: 4,114
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throttle senson
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07-09-2014, 02:27 PM
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#7
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Member
Join Date: Feb 2014
Posts: 35
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Quote:
Originally Posted by tbethurum
Change both filters and see what happens I change them once per year on our 3126B never had any problems with power (2000 Winnebago UA 40J).
I also carry a spare filters.
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I know of the fuel water separator, Cat 198-6378. Is there another filter on the engine block, maybe part number, Cat 1R-0751
Thank-you in advance for your help in this matter.
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07-09-2014, 02:55 PM
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#8
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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Yes there is a 3 micron filter mounted on the engine that filters the fuel going
to the injectors.
Part # 1R-0751 is listed for a C7 engine
Part # 1R0759 is listed for 3126B engine
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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07-10-2014, 06:14 AM
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#9
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Senior Member
Join Date: Jul 2010
Location: Visalia, CA
Posts: 157
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Fuel Filters
Quinn Cat of Selma CA changed mine 3405 filter and 1R-0751 filter at least that's what's on the invoice, also mine were relocated to the rear next to the radiator one on each side.
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07-10-2014, 07:54 AM
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#10
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Moderator Emeritus
Country Coach Owners Club Freightliner Owners Club
Join Date: Sep 2004
Location: Glen Allen, VA
Posts: 7,902
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Quote:
Originally Posted by ttrv
I know of the fuel water separator, Cat 198-6378. Is there another filter on the engine block, maybe part number, Cat 1R-0751
Thank-you in advance for your help in this matter.
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No, there is only one fuel/water separator filter on your coach. I had the same coach for 8 years and the only fuel filter is the one mounted in the lower engine area. The 198-6378 is CAT's 2 micron high efficiency fuel/water filter.
There is a way to add another fuel filter and if you bought the coach used, the prior owner may have added one.
__________________
2007 Country Coach Allure Siskiyou Summit, sold/traded Nov. 2018.
2019 Grand Designs 384GK-R 5th wheel. Glen Allen, VA
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07-14-2014, 05:51 PM
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#11
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Community Moderator
Join Date: Aug 2011
Posts: 6,200
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Quote:
Originally Posted by ttrv
After two months of sitting my 2002 Winnebago journey powered by 3126 caterpillar started a-ok as always however after pulling out I noticed there was no power even pressing accelerator to the floor. No indicators lights either. After riding around the block for 30 minutes power started to come back then all at once it ran as a-ok. This has happened two times now in the last year?
Thank-you for your help in this matter.
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Did you solve the mystery ?
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