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Old 07-08-2012, 05:58 PM   #1
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one hell of a ride!!!!!!!!

Took our 93 monico signiture out for a ride yesterday and at first everything was great. Cummins was pushing us along and the ride was great. We stopped to fuel up and when we left the truck stop i was beginning to notice that my idle was a little high. We headed for the interstate just to run the coach because we have not used it in a month. We drove about ten miles and i had put the cruise control on. We then got off the interstate and i noticed again that the idle was over 1000. As i went down this particular street i had my foot completly off the gas pedal and we were motoring down the steet doing about thirty miles an hour, At this point i was having problems stopping the coach and i finally had to shut the coach down because the engine was now idling at 2000. Has anyone ever encountered this situation and what caused it. Was the cruise control stuck or is there something else that caused this.

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Old 07-08-2012, 06:47 PM   #2
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I had a similar thing happen to me on a trip out west 2 years ago. It was on a 98" cummins with mechanical cruse. It had just enough corrosion on the linkage so that the return spring couldn't completely release the throttle linkage. Held it at 1500 RPM. I used spray lube while on the side of the road and never had another problem with it.

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340 Cummins / Freightliner Chassis
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Old 07-08-2012, 07:01 PM   #3
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When that happens shove the transmission in neutral. That way you will keep you power steering and brakes.
Neil, Lin, and our furry companions, Ashby and Cody. 06 National Surf Side.
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Old 07-09-2012, 02:17 PM   #4
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Problem may be a weak, damaged or missing spring on the engine that is suppose to return the foot pedal to idle. This happened to me when I first bought my rig (used). At the time I was in a hurry, so I connected a couple bungee cords to the fuel pedal. At the shop, (I hate to admit, years later), they found a broken spring and just repaired it and reinstalled. Removed the bungees and more problem.

BTW, those long cables from the dash back to the engine and tranni are very expensive, jacketed and internally lubed. If you can't find anywhere it might need lube, you might try to discern if there is a missing spring.
'02 Winnebago Journey DL, DSDP, 36' of fun.

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Old 07-10-2012, 09:35 AM   #5
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Used to have a Dodge maxi-van did the same thing.. Throttle linkage was the issue there too, On this van it was a bell crank like lever that went through a busing in the firewall.. I remove it, reamed the bushing out with a gun cleaning kit (I don't reall if I used a .22 brush or, I think the next size up, actually I had two brushes) Lubed it and re-assembled. Worked great for a year or two then I had to ream it out again.

Only two things I have ever bought in a gun store.. Said pistol cleaning kit, and Dri-Slide. (oil, sort of)
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