← Misfire / rough running on all engines

Symptoms · ProMaster EcoDiesel (2014-2016)

ProMaster EcoDiesel (2014-2016): misfire, rough idle, hesitation or surging

2 documented failures on this engine list this among their signs. They are ordered from the most widespread down. Each one shows the signs in its record's own words, how to tell it from the others, the usual fix and any recall or bulletin.

1. Glow plugs and module: cold starts Common · 1 complaints
2. EGR system: coking and the cooler-with-valve assembly Occasional

Not sure which engine you have, or want the recalls for your exact truck? Check your VIN: it names the engine and lists the campaigns for that model year. Whether a recall is still open on your VIN: nhtsa.gov/recalls.

1 Glow plugs and module: cold starts

aggregated How widespread: Common 1 NHTSA owner complaints match it, out of 23 checked

How it shows up

• cold-start roughness/haze on cold mornings

Its other signs

• glow lamp flashing (cylinder-level fault)

How to tell it apart

• read glow DTCs per cylinder; measure plug resistance before condemning the module
• verify battery health first

Usual fix

glow plug(s) and/or module replacement per diagnosis

Root cause, parts and sources →

2 EGR system: coking and the cooler-with-valve assembly

aggregated How widespread: Occasional

How it shows up

• EGR flow DTCs, rough idle, haze on cold start

Its other signs

• power loss as the intake cakes up

How to tell it apart

• read EGR DTCs; command the valve; inspect pintle and intake for coking
• clean first per the community pattern; replace the assembly when the valve/cooler is done

Usual fix

EGR cleaning or cooler-with-valve assembly replacement

Root cause, parts and sources →

Other symptoms on the ProMaster EcoDiesel (2014-2016)

Loss of power, limp mode or derate

Everything on the ProMaster EcoDiesel (2014-2016)Its recalls and bulletins

Order: how widespread each failure is in its record (near-universal, very common, common, occasional, rare), then the number of NHTSA owner complaints that match its keywords. Complaint counts are keyword matches, not a manual review of each complaint. A symptom listed here means the failure is documented with that sign; it is not a diagnosis of your truck. Tiers: verified, aggregated, contested, data-gap. How we tier and source facts.