1989 Mercury Grand Marquis "rough idle sputters" Questions

...be EGR or O2 sensor.  I'll tell you something you might not beluieve,but it's true...........the `95 will idle rough if a taillight bulb burns out....NO KIDDING!  ...

sputters cant get the car past 20 -30 mph. car has 145,000 miles. is this a fuel or ignition problem? the car idles ok but a little rough. Thanks Could be fuel or ignition.  When is the last time

...sputters when drive and idles rough. it will also shut off if idling to long at stop light. i can smell gasoline as if not burning properly Your check engine light is on because your computer has ...

...Rough Idle covers several symptoms. Do you mean Idle (RPM) goes up and down or do you mean it is too low and car tries to stall? Idle is dependent on fuel delivery and spark Depending on your mileage ...

Rough idle, sputtering, and backfiring. The 3.8 Liter engine has a very rough and low idle. when accelerating, the engine sputters and sometimes backfires. When it gets around 45 MPH it stops ...

Rough idle, gas fumes, sputters while driving 1988 jeep wrangler 2.5 ,fuel injected throttle body. rough idle at 800 rpms, strong gas fumes, when I gas to 1000 rpms it runs better, sound like it is ...

rough idle like it's rpm' said go up & down but it also chugs, sputters, & has a whine as it's just idleing. While driving it will stall then not start again & this seems to happen after it has warmed

...and hesitating idles rough, sputters when under a load, changed fuel filter still runs rough Try replacing the PCV valve, and spray the carb, or throttlebody, with a good carb and choke

...idle much but definatly when i accelerate. the car kinda sounds like a boosted subaru the way the exhaust has a kinda ... Sputtering - Monte Carlo Enthusiast Forums Apr 12, 2008 Engine won't stay ...

...and rough idle rough idle while driving and acceleration sluggish you may also want to check the idle air control and the mass air control sensor, if not working properly they can cause both ...