2000 Ford ZX2 AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Speed & Mixture

NOTE: Idle mixture is not adjustable. If idle mixture is incorrect, see appropriate SELF-DIAGNOSTICS - EEC-V article.
IDLE RPM SPECIFICATION (1)

Application RPM
Crown Victoria, Grand Marquis & Town Car (2) 790-815
Contour & Mystique
2.0L DOHC 790-900
2.5L
A/T 700-760
M/T 760-800
Cougar
2.0L 790-900
2.5L 700-760
Continental 695-760
Escort
2.0L SOHC
A/T 730-790
M/T 750-820
2.0L DOHC 750-820
Focus
2.0L SOHC
A/T 730-790
M/T 700-800
2.0L DOHC
A/T 730-790
M/T 700-750
LS
3.0L 737
3.9L 750-770
Mustang
3.8L
A/T 700-730
M/T 700-780
4.6L
SOHC 660-700
DOHC 630-750
Sable & Taurus
3.0L OHV 760-900
3.0L OHV Flex Fuel 840-900
3.0L DOHC 700-730
(1) Idle speed is not adjustable.
(2) Includes Crown Victoria Natural Gas Vehicle (NGV).
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.