Grand AM L4-121 2.0L (1988)
Temperature Gauge: Customer Interest
Instruments - Temperature Gauge Fluctuation
Bulletin Number: 93-8-24
Reference Number: 338307
Publish Date: 9/93
Subject:
INFORMATION ON TEMPERATURE GAUGE FLUCTUATION
Models Affected:
1988-93 GRAND AM MODELS WITH 4 CYLINDER ENGINES
(VIN A, D, G, U, 1, 3 AND 4)
THIS BULLETIN CANCELS AND REPLACES BULLETIN 86-6-56. PLEASE REPLACE BULLETIN 88-6-56 WITH 93-8-24.
Some 1988-1993 Grand Am vehicles equipped with 4 cylinder engines may exhibit a condition where temperature gauge readings fluctuate in the normal
range. These gauge fluctuations may be as much as 1/4 of the scale.
Coolant temperature sensor location combined with the thermostat cycling characteristics contribute to this sensitivity. This condition is considered a
normal characteristic of this engine family and should not be cause for instrument panel cluster, gauge or indicator sender, or engine coolant thermostat
replacement.
