So I recently noticed that my 2007 V8 Expedition is making some strange bumps while I'm cruising at around 40-60 mph in the lowest gear. At first it felt like I went over some bumps and it wasn't noticeably frequent. However, recently it has become constant (ever few seconds) and it now I'm noticing a feeling of running over mild rumble strips. There is also a slight change in RPM when any of these things happen. I find it extremely strange that all the symptoms disappear when 1) I'm in cruise control at any speed, 2) I shift into 3rd (it does it with O/D off, but very infrequently), and I'm coasting down a hill with my foot off the pedal. I don't have any MIL lights and checked the OBD II sensor with a single code for the ABS system (C1277). The engine ticks and I'm assuming I have to get the phasers changed and the A/C clutch doesn't engage. These are the only apparent issues I can see.
I'm afraid the Transmission might have to be replaced or rebuilt, which really sucks because I just purchased the vehicle (and did an extensive inspection of the vehicle), it was all fine while we drove.
Any insight into this issue would be much appreciated! Thank you!
I'm afraid the Transmission might have to be replaced or rebuilt, which really sucks because I just purchased the vehicle (and did an extensive inspection of the vehicle), it was all fine while we drove.
Any insight into this issue would be much appreciated! Thank you!