Question about 2003 Ford Taurus
Could be a vac leak or a problem with the idle air control valve. I would check the valve to see if it is sticking open. Could be a problem with the throttle cable too.
Posted on May 20, 2014
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Posted on Jan 02, 2017
Are you getting any codes from the Check Engine Light? This sounds like it could have something to do with a sensor. Check your air filter and make sure it's clean. The tach on my 1999 doesn't really work, but it hasn't coincided with other driveability problems. The engine doesn't change in it's RPM's, the tachometer just stops working. Have your charging system checked. The shaking might be coming from bad fuel pump operation, clogged fuel filter, or dirty fuel injectors. Try putting an additive into your gastank to clean the injectors (a bottle of Seafoam is great for this). Try calling your local Autozone and see if they do free trouble code scanning. This might help lead you in a better direction.
Posted on Jun 29, 2009
Best take it to a repair shop. If your removing air intake ducting and starting the vehicle,you don't understand the technology.
Posted on Sep 28, 2010
2003 Ford Taurus. 3.0, V6. 162k mi. Had rough idling and 'loping' when car in Park, or prolonged stops at red lights. Checked air filter. Changed it. Problem still present. Checked MAF sensor. Okay. Checked PCV valve and line for leaks. BINGO! The PCV valve had vacuum. But the rubber elbow at the top of the PCV valve line was cracked and collapsing. Also had a lot of oil 'gunk' on the inside around the hole. Replaced the elbow and PCV valve. Started car. No more idling problems.
Posted on Sep 04, 2013
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