Smills48 Posted November 4, 2023 Report Share Posted November 4, 2023 I have a 1984 Chieftain that has been sitting for 10 years, but it did start and drive around the yard. But today when I tried it the transmission wouldn't engage. It would rev up while in gear, but no response from the trans in any gear. Linkage is all good. Anyone have any suggestions to try? Quote Link to comment Share on other sites More sharing options...
Ed ke6bnl Posted November 4, 2023 Report Share Posted November 4, 2023 If you can check the fluid level. Quote 2000 National RV Sea Breeze 5th wheel 30ft. So.California 1950 F1 street rod 1949 F1 stock V8 flathead 1948 F6 350 chevy/rest stock, no dump bed shortened frame. 1953 chevy 3100 AD for 85 S10 frame 1968 Baha Bug with 2.2 ecotec motor 170 hp, king coil-overs,etc 1970 Baha Bug wihg 2332cc, King coil overs and everything else there is. 1998.5 Dodge 2500 4x4 Cummins, turbo, trans, injectors, lockers, bigger turbo,edge EZ upgrades for towing 35" BFG's, air dog lift pump etc. Link to comment Share on other sites More sharing options...
Wrknrvr Posted November 4, 2023 Report Share Posted November 4, 2023 You probably need to check the transmission fluid with the engine running. Quote Link to comment Share on other sites More sharing options...
Ray,IN Posted November 5, 2023 Report Share Posted November 5, 2023 When cold the ATF should be at the low line, when you get it driveable and the transmission is hot, only then should it read full. After sitting 10 years the seals are dried out and probably leaking. Quote 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...
Kirk W Posted November 5, 2023 Report Share Posted November 5, 2023 I believe that you have a GM, P-30 chassis and this link is for the chassis service manual. If you do not have one, here is a copy of the brochure that you can also download. I do believe that this owner's manual is also for your motorhome. Quote 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...
oldjohnt Posted November 5, 2023 Report Share Posted November 5, 2023 Sitting for 10 years !!!!!!! Like others said check the tranny fluid ?? While in general Im NOT a fan of snake oils, I have used Lucas Tranny Fluid additive and to my pleasant surprise it actually worked !!!!!!!!!! and may help lube or soften up some seals ??? See what any transmission experts have to say, that's NOT me................. John T Quote Link to comment Share on other sites More sharing options...
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