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Q: Van Stalling at all speeds on 1997 Plymouth Grand Voyager

I took Van into shop after it stalled out . they could not get a code. what happens is it stalls going 20- 70 mph, i stop the van, turn it off, start it again and go, does not happen again for a while (days / weeks) . sometimes if i am going a high rate of speed, it will die then catch again and i'm back running. reciently the problem is getting worse, more often. i've noticed it's when the van has been running and warm. shop says it may be a speed sensor , but can't be sure unless it's happening when i bring it in to be coded.
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Not speed sensor, but possible camshaft or crankshaft sensors. These sensors or associated wiring can cause the symptoms you describe. They will not necessarilly set a code if defective. A dealership can install a "flight recorder" and have you drive the vehicle. When it acts up you press the button and it records the events as it happens, then it is downloaded to their computer and the data reviewed. A good tech will "see" what is happening.
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