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HOMESERVICE MANUALSMERCURY1991TRACER BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 18 (ENGINE CONTROLS - REMOVE/INSTALL/OVERHAUL)FUEL SYSTEMTHROTTLE BODYINSTALLATION (3.0L)
1991 Mercury Tracer Base, 4D Sedan, Automatic

Installation (3.0L)

1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Installation (3.0L)
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 1994 Mercury Tracer, 1994 Mercury Topaz, 1994 Mercury Sable, 1994 Mercury Grand Marquis, and 1994 Mercury Cougar. However, it is still accessible from the selected car via links, so may be relevant.

Clean gasket mating surfaces. Install new throttle body gasket. Install throttle body. Lightly oil throttle body bolt threads. Install bolts and tighten in sequence to specification. See Fig 1. See TORQUE SPECIFICATIONS TABLE (V6). To complete installation, reverse removal procedure.

Fig 1: Throttle Body Bolt Tightening Sequence (3.0L)
G90D10168Courtesy of FORD MOTOR CO.
RENDER: 1.0x

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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.