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Engine idles good for a couple min than turns rough and than starts running fine?
The coil might be bad ,,like it was in mine
Have f-550 7.3 diesel idles fine until excelerated then runs rough and white smoke comes out of tailpipe?
sounds like an injector is bad.
What is wrong with my 2003 silverado it idles rough and will go dead when put in gear?
its most likely your idle control sensor. if you replace it the truck should run fine.
I have a 1996 Mitsubishi mirage. It starts fine but when it starts it idles rough and has no power whats wrong?
check all the Fuses and fuse links (Altnator to Fuse box to battery)
Your CNG 1999 Crown Vic idles rough for 3-4 minutes then runs fine when warm?
There are several things that can cause your 1999 Ford Crown Victoria to idle rough when it is cold. The most common cause is a leak in one of the vacuum hoses.
What is the fuel pressure supposed to be on a 1993 silverado with a 5.7?
Factory pressure is 75psi. However, the book says that the truck will run fine as long as the psi > 50. Mine is currently 52psi and the truck runs fine....idles a tiny bit rough sometimes.
1993 Ford Explorer during warm-up revs and runs fine after warm-up idles rough and shutts down?
Could be a plugged catalytic converter or bad coil. Both will act up when they get warm.
Have a idle problem with a 98 windstar 3.8idles good when cold idles rough and stalls when warm works fine when driving?
The most common reason for a vehicle to run rough when it is cold is bad spark plugs or bad spark plug wires. Change the spark plugs and spark plug wires.
What needs to be repaired on a 1994 Ranger V6 4.0 runs rough but idles fine?
If a 1994 Ranger V6 4.0 runs rough while driving but idles fine, potential issues could include a faulty mass air flow (MAF) sensor, vacuum leaks, or problems with the ignition system such as worn spark plugs or ignition coils. Additionally, issues with fuel delivery, such as a clogged fuel filter or failing fuel pump, could also be contributing factors. A thorough diagnostic check, including scanning for error codes and inspecting these components, will help identify the specific cause of the rough running.
What causes a 85 300zx to be hard to start at first idles rough for about 30 seconds then runs fine?
mass air flow (maf) causes the running ruff but not really the stalled start my z and many others have this same problem
200 EFI Black Max mercury no power?
If the boat idles fine and revs fine in neutral in the water and idles fine on the trailer, however has no power when you stick it into drive and give it some throttle a common problem with some of these early Mercury V6's is in the stator. The only way to fix this is to replace the stator.
99 Chevy silverado 4.8l it idles fine until you drive it then it idles up to 15-1700 rpm and wont stop till you shut it down then when i start it again it idles normally until i drive again why?
Probably a bad idle air control valve.
