Temperature Sender Resistance
Thread Starter
|
New User
Joined: Jan 2000
Posts: 12
Likes: 0
Temperature Sender Resistance
Does anyone know what the resistance of the temperature sender should be in an '89 F250 351M?
My temp needle dips slightly when powered on. I measured the sender resistance across the two connector pins, and it's 17.8 k-ohm with the engine slightly warm. The two pin connector is supplying 4.6 vdc to the sender (measured across the pins), and the temp gauge connector in the instrument panel supplies 12 vdc across the lower left terminal to the top terminal (triangular terminal orientation). I also measured the impedence of the gauge, 109 ohm lower left pin to top pin, 50 ohm top pin to lower right pin, and 58 ohm across both lower pins.
Thanks,
Greg Calder
My temp needle dips slightly when powered on. I measured the sender resistance across the two connector pins, and it's 17.8 k-ohm with the engine slightly warm. The two pin connector is supplying 4.6 vdc to the sender (measured across the pins), and the temp gauge connector in the instrument panel supplies 12 vdc across the lower left terminal to the top terminal (triangular terminal orientation). I also measured the impedence of the gauge, 109 ohm lower left pin to top pin, 50 ohm top pin to lower right pin, and 58 ohm across both lower pins.
Thanks,
Greg Calder
Postmaster
Joined: Jul 1999
Posts: 3,172
Likes: 4
Temperature Sender Resistance
Gary,
The chart Im looking shows at 50 deg F OAT, the ACT should have 3.51v and the resistance should be 58.75 Ohms on the X scale . Those things may set fault codes if its been very cold . What led you to inspect it in the first place ?
Paul
The chart Im looking shows at 50 deg F OAT, the ACT should have 3.51v and the resistance should be 58.75 Ohms on the X scale . Those things may set fault codes if its been very cold . What led you to inspect it in the first place ?
Paul
Thread Starter
|
New User
Joined: Jan 2000
Posts: 12
Likes: 0
Temperature Sender Resistance
Paul,
What is an ACT sensor? Is it the temperature sender?
I checked the temperature sender because the gauge always read "C". I figured it was just the sender, but just wanted to be sure, since I have the volt meter.
What is the X-scale. When using a diagnostic test tool?
Greg
What is an ACT sensor? Is it the temperature sender?
I checked the temperature sender because the gauge always read "C". I figured it was just the sender, but just wanted to be sure, since I have the volt meter.
What is the X-scale. When using a diagnostic test tool?
Greg
Postmaster
Joined: Jul 1999
Posts: 3,172
Likes: 4
Temperature Sender Resistance
Gary ,
Im sorry ...for some reason I thought you were try to diagnose The Air Temp Sensor . I was talking to someone at the time I was typing the previous post and got my wires crossed . Sorry for the confusion .
Paul
Im sorry ...for some reason I thought you were try to diagnose The Air Temp Sensor . I was talking to someone at the time I was typing the previous post and got my wires crossed . Sorry for the confusion .
Paul
Thread
Thread Starter
Forum
Replies
Last Post
Roader
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
24
Jul 21, 2024 08:27 AM
924x2150
1987 - 1996 F150 & Larger F-Series Trucks
18
Aug 29, 2005 09:49 PM
1956, 302, 50, explorer, ford, gauge, range, resistance, resistor, sender, series, sohc, temp, temperature, temperaturesender
