Loss of power - restart fixes it.
Since my car did this three times already this morning, I figured I'd start a new thread and see if I can get any input.
1991 124 will suddenly lose power just driving along. It even does it sometimes just sitting at a light. It will suddenly start to idle rough, the idle speed will drop under 500 and when you try to move, the power is gone, like you've got five ACs running. You can tell when it happens while in motion because the car starts to feel really heavy, the slow idle makes it slow down more quickly and when you stop, the tach is showing less than 500, rather than the usual 700 or so.
For a while now, the car would lose power sometimes but you could "fix" it by flooring the accelerator for just an instant and it would be cured. This new (?) problem feels different somehow and the floor-it trick does not work. But turn off the key, restart and poof! It's back to normal. For a few minutes, anyway.
What do ya'll reckon this could be?
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2012 E350
2006 Callaway SC560
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