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Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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2009 Taurus, automatic, at stops tach will swing all the way to the ri

Customer Question

2009 Taurus, automatic, at stops tach will swing all the way to the right and then bounce around awhile, sometimes engines revs but mostly not, when leaving stop car does not immediately go forward - very jerky start
passengers generally remark that its the tranny however, the mechanic can find no issues there.
no check engine light
have had spark plugs replaced ($400)
throttle plate (?) cleaned and some sensor adjusted
now they want to replace the sensor - unless i can get it to act up for them - they have not been able to duplicate the issue
what else might be a factor? new sensor will run about $300 to replace
Thank you!
Submitted: 2 years ago.
Category: Ford
Expert:  fordtechsuzukitech25 replied 1 year ago.
sounds like trans. concern, first thing i would do is add a quart of trans. fluid to see if it helps