Mack Granite Bad Throttle Position Sensor

From mack electronic info system.

Mack granite bad throttle position sensor.

I was going to remove and replace both of them. It will go open and then come right back. Mack granite speed sensors shop by price 000 8400. There are more than a dozen self diagnostic trouble codes for a bad tps sensor running from p0120 to p0229.

3 4 1 speed sensor vss 4 2 cooling fan 4 3 auxiliary products number 1 4 4 auxiliary products number 2 4 5 aset iegr wastegate position 4 5 aset cegr vtg position sensor 4 6 tachometer 4 7 speedometer 4 8 customer defined statement 4 9 aset cegr egr valve mechanism 5 1 throttle position sensor. One in front and the other on the rear. Tps detects how far your throttle plate is open also to assist in measuring engine load. In most of the cases all of these symptoms will show together making it easier to detect the faulty component.

A faulty throttle position sensor sends incorrect information to the ecm resulting in various issues in the engine its performance and fuel economy. I removed the sensor on the front timing cover cleaned it and replaced it. Any of these will tell you that there s a problem there. Fuel air and fire.

3 voltage high 4 voltage low open 14 invalid parameter identification pid. P91 message identification mid. 13100 17700 c7 c10 c12 c13 c15 3406e throttle sensor 2661466 26995 add to cart detroit diesel series 60 engine turbo temperature sensor 23527813 5495 add to cart mack speed sensor 20706327 3795 add to. It still runs the same so i guess i ll just replace both of them.

The throttle position tp sensor is a potentiometer that is mechanically linked to the. 3 10 aset cegr engine brake position no. Something you will never see with a digital meter. Below are common symptoms of a faulty tps.

Most scanners have a feature to monitor engine vitals and throttle position in real time with the engine running but this feature isn t generally much help in diagnosing a tps. When i called mack they told me that there is two engine position sensors on this engine. Mack granite speed sensors. The sensor monitors several different engine and transmission functions and sends the information to the on board computer.

When performing electrical tests wiggle wires and connectors to find intermittent problems. The engine in your 2007 mack granite cv713 requires three basic things to run. You can also use it for testing for bad wiring harnesses and connectors. A vehicle speed sensor is a permanent magnet generator attached to the transmission under the vehicle.

Sometimes a certain spot burns out on the sensor put only a specific spot its a potentiometer so it isnt necessarily good or bad it can have bad spots burns out so when your throttle hits that section your fuel may hiccup for a second while you race past it or just change throttle position. It is triggered by the turning of the transmission shaft sending a signal which increases. The only way to spot if it s bad is as you are pressing the pedal down with the ohmmeter hooked up you will see the dead spot as a quick jump in the needle.