2008 Hyundai Entourage GLSFACTORY OEM SERVICE PROCEDURE

Component Inspection

  1. Check the condition of HO2S
    1. Check HO2S for poor connection or loose terminal.
    2. Check if HO2S is insularly installed.
    3. Is the conditions of HO2S normal?

      YES 

      • Go to " 2Check the Signal waveform of HO2S" as follows.

      NO 

  2. Check the Signal waveform of HO2S
    1. IG "OFF" and connect HO2S connector.
    2. Engine start.
    3. After warming-up, monitor signal waveform of HO2S with scantool.
      Fig 1: Signal Waveform Graph
      G05322212Courtesy of HYUNDAI MOTOR CO.
    4. Is the sensor switching properly?

      YES 

      • Go to " 3Check the fuel filter" as follows.

      NO 

      • Substitute with a known - good HO2S and check for proper operation. If the problem is corrected, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  3. Check the fuel filter of fuel pump
    1. IG "OFF" and disconnect the fuel pump connector.
    2. Start the engine and wait until fuel in fuel line is exhausted. After the engine stalls, IG "OFF"
    3. Remove the fuel pump assembly.
    4. Check the fuel filter for clogging by dust, a foreign substance.
    5. Is the fuel filter O.K.?

      YES 

      • Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      • Substitute with a known - good fuel filter and check for proper operation. If the problem is corrected, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others
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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.