P2187 PCV HOSE CRACKED
Model Starting S/N Ending S/N Model Spec
MAZDA6 2003-2005 000000 ZZZZZZ 2.3L ONLY
ENGINE / FUEL / DOES NOT TURN OFF/WARNING LIGHT
ENGINE / FUEL / ROUGH IDLE
MTOL - 4706 Dealer Repair Information
Symptom and Conditions
The check engine light will illuminate and set DTC - P2187 and in the
worst case, the engine may also have a very rough idle.
1. Perform a "vacuum hold test" on the purge valve by removing the hose
indicated and then applying vacuum to the purge valve tip.
If the purge valve holds vacuum, proceed to step #2.
If the purge valve does not hold vacuum, replace the purge valve.
2. Remove the intake manifold per the Work Shop Manual and inspect the
P.C.V. hose for crack(s).
If the P.C.V. hose is cracked, proceed to step #3.
If the P.C.V. hose is not cracked, continue troubleshooting the
3. Replace the P.C.V. hose.
P.C.V. Hose L305-13-895 2003 MY
P.C.V. Hose L341-13-895 2004 - 2005 MY