loxy1

1999 Taurus with 168k on the car, about 88k on the transmission. The wife was driving it and said the tach was jumping about 2000 RPM while she was at highway speed (65 mph). She said the car would feel like it was slowing down when the engine surged, but them came back fine when it stopped.
I drove it yesterday for about 50 miles and nothing happened to me. I might see a 100 RPM change, but I could account for that due to load changes (wind, coming over hill, etc). The transmission fluid level is where it should be. It is due for service, but the fluid actually looks very good and has never been low. No service lights have come on.
Any ideas as to what the problem might be? What do I need to check?
Thanks!

Sterling_Six

Hello and good day to you:


My wife and I own a 2000 Taurus SE Wagon...Now are Tach will read at 2000rpm at about 68 to 70mph...I believe this is normal for the age, and mileage of you car.

Any further issues arise please contact us again.

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Good Luck and good repairing Sterling_6
"You know, just like in that Book, When Jesus beats up Moses to get Religion!!"

loxy1

Sorry. Let me clarify. The engine speed is normally about 2000 RPM at that speed. The issue is that it jumps about 2000 RPM (from 2000 to 4000).

360ci

throttle position sensor

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'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
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