rhome Posted December 10, 2018 Report Share Posted December 10, 2018 We have a 2004 Dutch Star with a Cummins engine. We have been experiencing an intermittent loss of acceleration. It has happen on hills and flat terrain. We drove from Pennsylvania to Florida and it happen only twice. Putting on the exhaust brake seems to make the problem stop. We have had it looked at several times by Cummins and other repair facilities. They have found no fault codes. The fuel has been checked and the filters have been changed but the problem continues. Any suggestion for a solution would be appreciated. Jim and Nancy Tidball 2004 Dutch Star 4025 2006 Honda CRV http://runningdownourdream.blogspot.com Link to comment Share on other sites More sharing options...
Kirk W Posted December 10, 2018 Report Share Posted December 10, 2018 Could the exhaust brake be applying itself and then releasing after you apply it? Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
ARGO Posted December 10, 2018 Report Share Posted December 10, 2018 Whatever engine you have, does it have a "waste gate" ? That would do it. And BTW, congratulations on spelling Cummins with no "G", that drives me nuts! You'd have to see the movie to understand.......... Link to comment Share on other sites More sharing options...
Ray,IN Posted December 12, 2018 Report Share Posted December 12, 2018 There is a throttle position sensor under the accelerator, when it begins to fail erratic behavior is one symptom. To check the TPS remove it and disconnect the wiring. Test with a ohmmeter, the actual readings are not important-as long as one is detected. What is important is the readings change smoothly from idle to WOT and the reverse. Complete testing instructions are found on the web. What ARGO said, and testing the TPS cost nothing, so if both test good, the only thing lost is time and effort. 2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA ." And so, my fellow Americans: ask not what your country can do for you--ask what you can do for your country. John F. Kennedy 20 Jan 1961 Link to comment Share on other sites More sharing options...
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