Concorde V6-2.7L VIN R (1998)
Technical Service Bulletin # 24-14-98
Date: 981030
Heater - Poor Performance/Slow Engine Warm Up
NO: 24-14-98
GROUP: Cooling
DATE: Oct. 30, 1998
SUBJECT:
Poor Heater Performance
At Idle Or Slow
Engine Warm Up
MODELS:
1998 (LH) Concorde/Intrepid
NOTE:
THE REPROGRAMMING PROCEDURE FOR THE PCM APPLIES TO VEHICLES BUILT PRIOR TO MAY 12, 1998 (MDH 0512XX).
SYMPTOM/CONDITION:
Some owners may describe poor heater performance during stop and go (city) driving or slow engine warm up in cool weather. Heater performance
during highway driving will be described as adequate. Low coolant level or excess air in the cooling system can cause these performance problems.
DIAGNOSIS:
Inspect the heater hoses as shown in figure 1. If the hose looks like pictures "A" or "B" on the illustration, perform the Repair Procedure. If a tee exists in
the horizontal section of the hose and is separate from the quick connect or TSB 18-09-98 Rev. B was performed, further diagnosis and testing will be
required.
