Rough idle at start up

These cars are notorious for developing a leak in the pcv hose at the intake and cause rough idle even stalling. When the hose gets warm from the motor running the hose softens enough to stop the leak slightly and then runs fine. Check this hose right at the intake and see if there is cracks or small rip at the elbow of the hose

Hi, I hope you can help, I am stumped. Used fuel tank recently installed, now have to trickle fuel in. Was told the check valve was plugged, garage said they blew it out, but still can't add fuel to tank without clicking off 1000 times.
Rough idle under load. Runs fine at highway speeds, no hesitations, no misses, plenty of power, but pull up to stop sign and feels like its about to stall. I replaced plugs, wires, coil pack, fuel and air filter. Pulled fron injectors, and cleaned them. Compression test on front 3 cylinders #4 125 #5 150 #6 160. Oil level normal not milky, anti freeze level normal. Don't hear any vacuum leaks. Car sat for 4-5 months. Could it just be junk from the used tank? I've tried running techron in the tank, and added 1/2 quart marvel mystery oil to help clean top side. Any thoughts would be greatly appreciated

The egr valve appears to be working. The scanner only threw a code for the fuel gauge sending unit (which also isn't working). Is the evap solenoid under the trunk having to do with vapors from tank?

Thanks

Will do thank you. Would a bad evap solonoid also cause a rough idle?

The engine idles rough and the exhaust is rich with gas. As soon as you hit the accelerator, the problem clears up and the gas milage is the same. As of now, no problem codes have popped up and the "Service Engine Light" has not come on. The engine bounces between 500 and a 1000 rpms. Starts with no problems. I am not sure if its my imagination or not, but it seems that if your going 55 MPH down the road and you let off the accelerator, the engine doesn't slow down until you hit the brakes. What's your thoughts?

Hi. This car suddenly has no power climbing hills, and shifts down to lower gears to keep going. Plugs look ok, were cleaned and regapped and replaced. Checked and topped all fluids, added octane booster and filled up w/ hightest gas. No obvious sound for compression leak. Several months ago I replaced the plugs as the three on the front of the transverse engine had the anodes burned clear off while the rear plugs were fouled and hardlly used. I also replaced the voltage distributor pack? Mounted on the block, which fixed thihngs for five months. No water iin the oil. Car starts ok, but idles and runs roughly. Plug wires look ok. High pitched sound low passenger side may be a failing water pump, but no leaks seen. Any ideas! Pw

Was driving slowly through residential area, car started acting like it wanted to stall. After increasing speed it stopped doing that. Next day engine light came on and it occassionally will idle roughly when sitting at a stop light or driving very slowly. I am a single woman and don't want to get jerked around at the dealership so can you give me an idea of what could be wrong before I go in there? How do you check codes in a car? There use to be a way on turning the ignition three times and a light would flash several times for whatever code was wrong.

I went to Auto Zone and they hooked up a small device and told me my car was running "lean" I tried to question the young man but he told me it could be several different sensors and that I should take it to the shop. I asked if it could mean it needs a tune up and he said it could but I shouldn't try anything until I took it to the shop and got official codes.

YOU ARE AWESOME! We looked at the PCV hose and found cracks in the elbow. Once that was fixed all was good. Thank-you so much. This could have easily caused me money I didn't have if I had to take it to the dealer. Thank-you again!

I am having the same issue as this lady but I cannot find any place to purchase the rubber hose or the 90 degree rubber hose part. Can someone please direct me to a place online?

Thanks.

2002 Taurus engine runs rough at idle for first 30 seconds and then smoothes out. Using scan tool the only thing unusual is the ignition advance is only 2 to 3 degrees and then moves up to 10 to 12 degrees as engine smoothes out. What things control the timing?
Thanks. Lee