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Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 8964
Experience:  I am ASE Master Truck Certified.
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What's the normal intake manifold temp range on a c-12 and

Customer Question

What's the normal intake manifold temp range on a c-12 and if it's hitting 140F what might be the problem ?
Submitted: 2 years ago.
Category: Medium and Heavy Trucks
Expert:  Cat Man replied 2 years ago.
Hi. Thanks for asking your question and requesting me! I will try and help you out.
The normal temp range for the C12 is between 120 and 140 degrees F. The higher the load on the engine and the higher the ambient temp. The higher the intake air will be.
The max allowable is 150 degrees F.
Normal causes of high intake air temp are:
Restrcited air filter
Restricted muffler
Restricted air to air cooler.
Please reply back if you need more help or have more questions. I am happy to assist.
Expert:  Cat Man replied 2 years ago.
Hey. I just wanted to see how things were going. Please let me know if you need more help. I am happy to assist. If my information was helpful, please leave a good or higher rating so that I receive credit. Thanks.