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2009 Dodge Caravan - Strange Problem
I've had this problem twice now. Both times, under same conditions. Normal temp, normal driving (passing), vehicle warm.
I would be traveling down the highway, passing another vehicle. Then all of a sudden the vehicle would start shaking violently (like I was lugging it) and then engine light would start flashing. When this occurs, then engine runs rough, the light continues to flash and even normal acceleration causes the vehicle to shake. Even if I slow down to 30-40 the vehicle continues to shake violently upon even slight acceleration. The light continues to blink and ding until the vehicle is turned off.
The first time this happened, the vehicle died and I coasted onto the shoulder. Both times this occurred, I let the vehicle sit for 20-30 minutes and everything returned to normal and I could not reproduce the issue.
I've taken it to the dealer and they say no codes are stored, except for an unrelated "inverter overload" code. I've never used the interior power inverter so not sure why this is even showing up. But they say, the computer should have stored a code and they expected to see a "misfire" code but did not. It was passed off as possible bad gas. But now it has happened twice.
The vehicle currently has about 4000 miles on it and the dealer has thus far been unable to nail down the problem.
To me it feels like an engine problem but acts like the vehicle is stuck in 6th gear and put under a load (lugging).