Ford Escort - Rough Acceleration. CRIMP It runs fine except that on acceleration at lower rpms the car wants to jump a little. Once the rpms come up it goes away. It sort of seems like it's misfiring, but it's more of a random misfire. I've replaced the plugs and wires. Also, the PCV valve housing and hoses were melted so I replaced them. Nov 12, · Why does my zx2 stall and run rough at an idle - Answered by a verified Ford Mechanic I own a Ford Escort ZX2 that runs fine on the highway but idles extremely rough when stopped or at low speed. Ford Escort ZX2: gakulkarni.infol gakulkarni.infod.
Dec 20, · Ford Probe Engine Runs Rough, Stalls, Hesitates on Acceleration, Hard Starting, Poor Performance - 14 reports. Learn about this problem, why it occurs, and how to fix it/5(4). Jun 02, · Ford Escort ZX2 DOHC Ztec manual trans with K. Suddenly loss of power from 1/4 to 1/3, rough idle, "service engine soon" light on dash, hesitation on acceleration and a loud "back pressure" noise coming from air cleaner. Also accompanying these symptoms, a rattling noise from the intake side of manifold on acceleration and at no load as well as deceleration.