113 degrees is a pretty brutal temperature to deal with. At only 90 degrees around here, my coolant temp gauges can easily read 1/2-5/8 in traffic. If it reaches a peak at 3/4, but then ramps back down to below 1/2 for awhile, then back up and down over several minutes, it may actually be close to normal. You can use a handheld scanner and monitor coolant and intake temps, and observe if the fans kick on at appropriate heat levels.
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