DawnVic M
Member
Hi everyone! My '01 Job 1 ST with 87K miles has started having an erratic higher than normal idle. Normally it drops to 700-800 RPM at idle when the engine is fully warmed up. In the last 2-3 weeks it has started periodically staying at about 1200 RPM at idle when the engine is warm. It feels like when I'm braking I'm fighting the engine acceleration a bit, but not dangerously so (at least so far). As I typically drive in stop and go traffic, I've noticed that sometimes the idle is normal but more and more frequently it's high. And when I get to where I'm going and I put her in Park, she stays high and sometimes revs higher to about 1400 RPM. And sometimes she's normal and drops to 800 RPM or so. It seems to me that it's idling high more often, but maybe it's just that I'm paying closer attention to it now. I just had her serviced a couple months ago at 86K at my very reputable Ford dealer that's been exclusively servicing her the last several years and the inspection was fine. I haven't done anything yet like cleaning the IAC. I would appreciate hearing what you think might be going on and what it will take to fix it. I'm willing to take on easy maintenance-type repairs before going to the dealer. Thanks!