Altima 2.5 SL L4-2.5L (QR25DE) (2002)
Engine Control Module: Customer Interest
Engine Controls - Hard/No Start/Rough Idle When Freezing
Classification:
ECO2-023
Reference:
NTB02-113
Date:
October 29, 2002
HARD/NO START/FLUCTUATING/ROUGH IDLE AT TEMPERATURES BELOW FREEZING
APPLIED VEHICLES:
2002 Sentra (B15) -"SE-R" and "SE-R Spec V"
2002 Altima (L31).- "2.5", "2.5S", and "2.5SL"
APPLIED VINS:
See "Table 1"
APPLIED DATES:
See "Table 1"
APPLIED ENGINE:
QR25DE (2.5 liter) ONLY
SERVICE INFORMATION
If an applied vehicle has the following symptoms during temperatures below freezing (below 32°F/0°C):
^
Engine cranks but is hard to start
^
Engine starts but has "fluctuating"/rough idle (400 - 600 RPM)
^
Engine will not maintain idle after starting (doesn't recover from low idle)
^
Engine starts but has a "ringing" noise (throttle valve hits stop)
^
Engine will not start at all
Refer to the Service Procedure to resolve this incident, if it should occur.
NOTE:
If the above symptoms do occur when the vehicle is warmed up (not cold), this bulletin does not apply.
SERVICE PROCEDURE