WEIRD transmission issues
03-21-2016, 10:31 AM
#11
Mark
iTrader: (1)
Fuel sender ?
03-21-2016, 10:34 AM
#12
Member
The fuel sending unit in the gas tank, includes a float and a thin, metal rod.
As the fuel tank contains less and less gas, the floater sinks. This causes the metal rod to move a wiper across a resistor. The amount of resistance the wiper encounters dictates the reading displayed on the fuel gage. The greater resistance results in the heating coil losing heat. This change in temperature moves a bimetallic strip that changes the gauge's reading. Ultimately, the less gas there is in the tank, the greater the resistance, and the lower the level reflected on the gauge.
As the fuel tank contains less and less gas, the floater sinks. This causes the metal rod to move a wiper across a resistor. The amount of resistance the wiper encounters dictates the reading displayed on the fuel gage. The greater resistance results in the heating coil losing heat. This change in temperature moves a bimetallic strip that changes the gauge's reading. Ultimately, the less gas there is in the tank, the greater the resistance, and the lower the level reflected on the gauge.
03-21-2016, 10:47 AM
#13
Mark
iTrader: (1)
What would that have to do with fuel pressure the motor is receiving ?
03-21-2016, 11:36 AM
#14
The truck went to the shop. I wish I had known to check the OD servo clip while I was in there. This is my first time working on the trans so I just didn't know what to look for. But after my reading I tend to agree that it could be that servo clip. We'll see what the mechanic says. I HATE letting other people work on my truck
03-21-2016, 11:41 AM
#15
Mark
iTrader: (1)
me too... good luck and be sure to let us know what it was.
03-21-2016, 11:50 AM
#16
I HATE letting other people work on anything of mine. Can never get 100% satisfaction unless I do it. (Yes I am a bit of a perfectionist). If it is the servo clip, it should be a quick fix with not too much $$$$. Let us know what happens?
03-21-2016, 11:54 AM
#17
haha I'm glad y'all share my hate. My fear is that the mechanic will just say that it needs a new trans without looking too much at it. I'll definitely keep everyone updated and let you know as soon as I do. Thanks for all the help so far
03-21-2016, 04:16 PM
#18
Member
The sending units talk with the ECM (Engine Control Module) on how much fuel is needed to fire. If the sending unit is malfunctioning it sends an inaccurate reading to the ECM on fuel output. This then confuses the transmission into thinking there is no fuel therefore stop functioning. This happened to me about a year ago and we initially diagnosed a bad transmission. After long days of testing the conclusion was the fuel sender. When we replaced it ran like a charm! And yes it was like night and day on the performance. One day running great the next day hesitating at different speeds.
03-22-2016, 12:09 PM
#20
Trans shop called and said that there's an issue between gears 3 and 5. Not entirely sure what that means but they said they'd take it apart and have a look. Starting to look like this repair is going to be a lot of $$$