Questions & Answers for: rough acceleration smooth idle

...smooth. Real rough. With a tap on the accelerator pedal it would smooth out and idle high, then gradually come down to rough idle again. I did find out though that the problem diminishes when the ...

...rough , after apllying power will accelerate smooth then at speed engine began surging , when slowing down engine continues to surge then , at idle will continue to surge form idle rpm to around 1200 ...

...ROUGH ACCELERATION 1996 FORD CONTOUR 4CYL ROUGH IDLE PROBLEM, ROUGH ACCELERATION, THEN SMOOTHS OUT. COMPLETE TUNE-UP DONE LESS THEN 1 WEEK AGO, CAR HAS 190K ON IT, AUTOMATIC. no problem. If you are ...

...rough acceleration and idle sometimes it sputters occasionally through acceleration smooth and rough. given a service, checked leads, no head probs, seems to spark fine at plugs. wondering if its ...

smooth. Rough idle is a very common problem on 4 cylinders, but I believe the 98 Regency has a 6 cylinder in it, right? Sometimes the coil packs get iffy, and sometimes the EGR Valve gets a leak in it

...rough idle with vibration. Hesitates accelerating up to 20mph and then at 25, 30, 35, etc. Runs relatively smooth once accelerated to about 35 though still feel some vibration. Replaced plugs/wires ...

...rough and jerking on acceleration Truck jerks and runs very rough when accelerating during shifts but smooths out after it is up to speed.Changed plugs and wires.Idles good. Depending on what kind of ...

...rough idle, but smooths out upon acceleration and runs fine... Until coming back to idle. A blueish smoke comes out of the tailpipe and it smells rich. Any ideas? Possible vacuum leak and or internal ...

...rough just sitting there when taking off smooth acceleration Check your vacuum lines and be sure your throttle body is tightened down. Carb cleaner spray can be used to find the leak. Spray it around ...

...rough but smooth when accelerating or driving. If I put in neutral it's still rough. Have 250000 thinking maybe injectors? Or where do I start? Take an have diagnostics run . Could be a vacuum leak , ...