SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSUBARU1987GL-10 4D WAGON, 1.8 4, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMEGR FUNCTION TESTINGSYSTEM TESTINGEGR SYSTEM
1987 Subaru GL-10 4D Wagon, 1.8 4, Automatic

EGR System

1987 Subaru GL-10 4D Wagon, 1.8 4, AutomaticSECTION EGR System
  1. If both EGR valve and thermo vacuum valve are functioning correctly, apply about 7.87 in. Hg to EGR valve with hand vacuum pump. With engine warmed up, either rough idling or engine stall should occur.
  2. If engine idle does not change, check EGR pipe and gas passages for clogging and leaks. Clean or replace if necessary. When cleaning, inspect EGR gas inlet to intake manifold for presence of deposits.
  3. Remove any deposits present using a hooked awl. Take extreme care that deposits DO NOT fall into intake manifold. DO NOT use an electric drill for cleaning. Remove deposits using a vacuum device.
  4. Inspect EGR gas inlet pipe for exhaust deposits and remove pipe as needed. Tap lightly on sides of pipe to loosen deposits. Clear deposits in pipe by using compressed air. Reassemble and install pipe.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

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

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote 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.