- NEW!
An engine needs a precise mix of air and fuel to run. One way to tell the difference between air starvation and fuel starvation is by seeing if the problem gets better or worse. Fuel problems will usually get worse with RPM, while air problems get better.
1990's Taurus engines are notorious for developing leaks in the rubber vacuum lines that connect to the manifold. If you suspect a vacuum leak, spray the hose fitting with brake cleaner and listen for a rise in RPM, which indicates a leak.
Tauruses use a thin, heated Mass Air Sensor line (located in the intake duct, just upstream of the throttle body) to calculate incoming air. These sensor lines can get coated with dust and varnish, which will cause a rough idle.
Blown head gaskets, leaking intake gaskets, broken piston rings, malfunctioning oxygen sensors and a dirty or malfunctioning IAC (Idle Air control valve) will cut air intake at idle. All of these can result in a rough idle.
The Taurus's on-board diagnostic system will trigger a check engine light for most faults; consider taking the car to an auto parts store or dealer to have the codes read.
What is the location of the throttle position sensor on a 1995 Ford Taurus?
by Answerbag Staff on August 17th, 2010
| 1 person likes this
Where is the catalyst temp sensor on a Ford Taurus?
by Answerbag Staff on August 17th, 2010
| 1 person likes this
Where is the OBD connector on the 1993 Ford Taurus?
by Answerbag Staff on August 5th, 2010
| 1 person likes this
Do you like the new Ford Taurus sleek design?
by socialist22 on April 14th, 2011
| 1 person likes this
Car only reverses and trans oil was found under the car.I put more trans fluid in it and fluid gushed out on the ground as I was pouring it
by ford2004 on June 3rd, 2011
| 1 person likes this
You're reading Why does my ford taurus idle rough?
Your favorite Q&A site is on Facebook! Become a fan to connect with the ever-growing community of Answerbaggers, share your thoughts and find out what Answerbag's up to next!
Comments