When to check coolant tem on Mack truck?
If the temperature remains below or exceeds the normal temperature range, the cooling sys- tem should be checked for problems by an authorized Mack Vehicle dealer. When coolant temperature is excessive, the red STOP tell-tale illuminates and the buzzer will sound. The engine is at risk and the ECM may derate the engine power.
How to cool down a Mack truck engine?
If the engine is running, the starter temperature is too high, the transmission is not in neutral or the clutch pedal is not depressed, starter engagement is inhibited. Allow the engine to slow down and idle for 3 to 5 minutes before shutting it off. This allows the turbocharger to cool down and the cooling system to dissipate the engine heat.
When does the low coolant level warning light go out?
When you start the engine, the low coolant level light should come on for a second or two and then go out. If it doesn’t go out, either the coolant level is too low or there is a problem with the sensor system.
What is the ambient air temperature sensor on a Mack truck?
CAUTION MACK is now using the ambient air temperature (AAT) sensor for on board diagnostic (OBD) monitoring. If a customer in- stalls a winterfront or blocks the radiator opening and blocks airflow to the sensor, they will likely set an OBD diagnostic
What is a humidity sensor on a Mack truck?
Took to Mack Dealer outside New Orleans, LA, and they put a computer on the truck that said it was a “humidity sensor”. I agree with the prior posts… If your dealer cannot tell you what the problem is, the DEALER may be a problem. Either they really DO NOT know (which is not good), OR, they were blowing you off.
What are the switches on a Mack truck?
•“Switch Package AUXSW-6B Assignable Body Builder Dash Mounted Rocker Switches”, page 20 •“Lens Kit for Assignable Body Builder Switches: Part # 22392309”, page 21 •“TE/MRU Dash Panel”, page 22
What are the specifications for a Mack truck?
Introduction This information provides specifications for chassis body installation for MACK vehicles. Note: We have attempted to cover as much information as possible. However, this information does not cover all the unique variations that a vehicle chassis may present.
What are the body builder instructions for a Mack truck?
Steering Wheel Switches 7. Radio (SEM) 14. Trailer Hand Brake Mack Body Builder Instructions PI / CHU, AN / CXU, GR / GU, TD, LR, TE / MRU, Section 8 USA141896628 Date 3