What does code P0507 mean on a Lincoln and is it safe to drive?
P0507: Idle Air Control System RPM Higher Than Expected. Here's what it means on your Lincoln, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
Idle speed is higher than the PCM expects. Often caused by a vacuum leak or dirty IAC valve.
Common causes for your Lincoln
- Vacuum leak
- Dirty or faulty idle air control valve
- Throttle body carbon buildup
Symptoms
- High idle
- Check Engine Light
- Possible surging
Typical fixes
- Find and fix vacuum leaks
- Clean or replace IAC valve
- Clean throttle body
Repair cost range
For a Lincoln, repairs for P0507 often fall between $50 and $400, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Lincoln
Lincoln P0507 high idle is Ford DBW throttle body carbon—same repair as Ford: clean the bore and perform the Ford PCM idle relearn. On Navigator 3.5TT, also check for boost leaks that can cause unmetered air at idle.
Most commonly affected models
MKZ 2013–2020MKC 2015–2019Navigator 2015–2020