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rpms jumping around?
I was wondering if anyone else feels their Aspen's speed going up and down as they drive at a constant rate on flat roads? I feel mine speeding up just a tad every little bit going down the highway!! I feel it the most when I have the cruise set. I can even see the tach jump about 300rpm when it is doing this. When you are cruising at 60mph on and the lock up converter is locked what rpm should i be reading on the tach? Most of the time mine is just under 2000rpm. I think it should be closer to 1600, but I could be wrong. I really think I have a TCC (Torque Converter Clutch) issue or lock up converter problem but the dealership says it drives normal and it is just the MDS system. Any help would be appreciated!!
Thanks |
RE: rpms jumping around?
After our 3,000 mile road trip I think I agree wtih the dealership, this is the way MDS shows up.
We have the CAI on the Aspen and you can hear the difference when MDS is active or not. I don't see any change in RPM when the MDS cuts in or out. Just an increase/decrease in torque and power with each cycle of MDS. I do agree, I would like to see an indicator of MDS being active during driving. The 300C MDS was less noticeable and you could hardly ever tell when MDS was active or not. I think it is just the way the Aspen MDS software works. |
RE: rpms jumping around?
ORIGINAL: goat1966 I was wondering if anyone else feels their Aspen's speed going up and down as they drive at a constant rate on flat roads? I feel mine speeding up just a tad every little bit going down the highway!! I feel it the most when I have the cruise set. I can even see the tach jump about 300rpm when it is doing this. When you are cruising at 60mph on and the lock up converter is locked what rpm should i be reading on the tach? Most of the time mine is just under 2000rpm. I think it should be closer to 1600, but I could be wrong. I really think I have a TCC (Torque Converter Clutch) issue or lock up converter problem but the dealership says it drives normal and it is just the MDS system. Any help would be appreciated!! Thanks |
RE: rpms jumping around?
ORIGINAL: jimhild ORIGINAL: goat1966 I was wondering if anyone else feels their Aspen's speed going up and down as they drive at a constant rate on flat roads? I feel mine speeding up just a tad every little bit going down the highway!! I feel it the most when I have the cruise set. I can even see the tach jump about 300rpm when it is doing this. When you are cruising at 60mph on and the lock up converter is locked what rpm should i be reading on the tach? Most of the time mine is just under 2000rpm. I think it should be closer to 1600, but I could be wrong. I really think I have a TCC (Torque Converter Clutch) issue or lock up converter problem but the dealership says it drives normal and it is just the MDS system. Any help would be appreciated!! Thanks I got our HEMI back, at 60 mph the tach reads between 1800-1900 rpm. This has the 3.92 rear axle. It reads about 2100 rpm at 80 mph. Interesting!!! |
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