Cimarron V6-173 2.8L (1986)
SUBJECT:
INTERMITTENT STALL AFTER START OR DURING DECELERATION
MODELS AFFECTED: 1986-1987 CIMARRON WITH V-6 ENGINE (VIN W)
Some 1986-1987 Cimarrons may experience a stall condition following start-up on a warm engine. These vehicles may also stall during deceleration.
This condition may be caused by residue accumulating inside the throttle body bore behind the throttle plate. The residue limits air flow past the throttle
plate when in the idle position. Even what appears to be a small amount of residue can be enough to limit air flow.
To repair this condition, the following steps should be performed:
1.
Measure the minimum idle speed following the procedures described in Section 6E3-C2 of the appropriate model year Service Information
Manual, and at the end of this bulletin.
2.
If the minimum idle speed is less then:
Auto transmission
-
550 +/- 50 RPM in drive
