Powertrain, generic (extended)

P26A0 Exhaust Aftertreatment Glow Plug Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P26A0 says the exhaust glow plug system does not perform as intended, even if no electrical fault is present. Ford gives the clearest picture for the 3.2 L Transit diesel: from the 2017 summary on, the code is set when the feedback of the vaporizer glow plug relay disagrees with its command for roughly 60 s while the key is on, a fault filed under P2689 in earlier years. Ford bulletin 18-2094, superseded by 19-2016, covers 2016–2018 Transits built up to 13 February 2018 that light the MIL with P26A0 and/or P24A0. When these are the only codes, the fix is a new fuel vaporizer glow plug plus a powertrain module update, and the newer bulletin adds checking a 3 A and a 20 A mini fuse. A failing plug starves the regeneration of heat, which is why P24A0 often appears alongside.

Likely causes

Fuel vaporizer glow plug degraded
Outdated engine module calibration
Blown fuse or relay feedback not matching the command

Symptoms

  • MIL on
  • Exhaust temperature control code P24A0 stored too
  • Regenerations take longer or fail

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€100–500
Time0.8–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

aftertreatment glow plugrelay

Related codes

P269FP26A1P26A2P269CP24A0

References: fordservicecontent.com, static.nhtsa.gov, static.nhtsa.gov.