Skylark L4-138 2.3L DOHC VIN D MFI (1988)
Temperature Gauge: All Technical Service Bulletins
Temperature Gauge - Fluctuation in Normal Range
Bulletin: 93-8-23
Date: Sept. '93
Ref.No.: 93-185-8
Corp.Ref.No.: 338307
SUBJECT:
INFORMATION ON TEMPERATURE GAUGE FLUCTUATION
MODELS AFFECTED:
1988-93 SKYLARKS WITH 4 CYLINDER ENGINES
Some 1988-1993 Skylarks 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.
