Car having rough idling and acceleration problems?
Okay I need advice. I drive 2004 Ford taurus ses with dual over head cam 3.0 litre. I have been experiencing extremely rough idling and acceleration. There has been a noise coming from near the intake that sounds like a vacuum. The noise only shows up after driving for at minimum 4 miles however the noise goes away when accelerating. I have replaced both the EGR Valve and the IAC valve neither have fixed my problem. I do not have the money for a mechanic currently. If anyone recognizes this issue please let me know
What I'm thinking is the Throttle Position Sensor. Other causes that could be at fault are: MAP sensor, vacuum leak or a dirty throttle body.
I'd say the first two thing I would check FIRST are: the TPS and Vacuum Leak.
TPS would not cause rough idle--it causes a stumble on acceleration. This is a classic vacuum leak problem. Common leaks are the rubber elbow that hold the PCV valve
Stpaulguy ditto, classic vacuum leak, rubber elbows at the ends of the pcv hard lines, common Ford problem.
Look at all your vacuum lines while its idleing, follow the noise feel for air, look for collapsed hoses. Otherwise take it somewhere you won't get a accurate diagnosis over the internet for this
- What car is cheap and can be modified to be really fast in speed and acceleration? I have a Ford Taurus and I feel like as if it lacks speed and acceleration. Also which modifications can increase the speed of the car and acceleration of it without removing any weight?
- My '06 Ford Taurus is having what i'm assuming transmission problems, any ideas? The other day while attempting to back up a small slope, my engine revved up and a message came on the info area of my dash saying to check the transmission. I turned off the car, turned it on and the check engine light was on. I go home and check the trans fluid and it's full. The next day I start my car and the check engine light is off, but now my car shakes on heavy acceleration and gear changes. I'm not a car person. Any ideas?
- Car acceleration problem and idle problem. The car is a 2003 Ford Taurus? . When the car is running and in parked its making a loud consisted rev noise. However the rpm needle thingy is not moving. when i'm in drive the car acclerates on its own with the speed ever increasing. i did some googling and learned that it can be the TPS sensor or the idle air intake valve, among a million other possiblities.
- Ford Ranger 4.0, 172,000 miles rough idle when starting after sitting overnight or after 2-3 hours. Starts 1st crank, idles rough 1 minute? Or so and then smooths out and runs fine. New heads and gaskets. Cleaned MAF sensor, throttle body and air intake sensor, new IAC valve, new air and fuel filters, new PCV valve. No smoke coming from exhaust and No check engine light. Any ideas what's causing this rough idle?