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Truck starts fine but acts like it is still 30 below zero with high idle speeds,2500rpm,that don't kick down so runs at 1500 rpm instead of 900-1000 rpm when truck is at a stop
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If this is for your Mighty Max truck, the problem could be the idle air control valve. The computer controls the idle speed by regulating how much air enters the throttle body thru the valve.
Sometimes on cold days if the cranking amps on the battery are low, then it will be hard for the vehicle to start. Also, check the oil level. If the level is low it will create a hard start and rough idle for the vehicle.
TRY Cleaning your throttle body. if it gets gummed up the minimum airflow rate is affected and will idle low. also might wanna try cleaning the iac valve.
Yes there is a governor which limits the rpm to 2500 rpm. It ha been limited because beyond this rev, the engine gets overheated and if kept running it that condition would slowly but surely damage the engine badly. Once you have reached the limit naturally your cruise control will stop working since its supposed to maintain that speed, which is not allowed by the governor. This governor can be removed but then you will have to risk damaging your engine fatally........................sodeep
Sounds like your ECT (engine coolant temp.) sensor has gone bad. What happens is when the truck is cold, the ECT acts like a choke on a carb. When the truck gets to operating temperature, the ECT tells the computer that it doesn't need the little extra fuel anymore. What's happening with your is the ECT isn't telling the computer that the engine is at operating temp. It's acting like the choke on the carb. is stuck shut. The computer is being told the engine temp is at 40 below still.
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