I have a scan gauge 2. Today on the way to work my truck went into limp mode, the tow haul light was flashing and the check gauge light was illuminated. Scan gauge showed trans temp of 8124 degrees, factory gauge was sitting at bottom. Did a scan and sg said no codes Pulled over and restarted and all was normal. On my lunch break drove to a store, all was normal, left it idling while I ran in, when I came back out, it was in limp mode again, same deal. Restarting didn't help. Sg still says no codes. Drove back to work in limp mode. It went back to regular for like 30 seconds on the way, then went back into limp mode. Worried about why it's doing this and need help. Truck is the excursion in my sig with about 85k miles.

 

What does the Scan Gauge say for trans temp? May be just a bad trans temp sender in the tranny.

 

When not in limp mode it reads normally. Around 155-165 usually. In limp mode, like I said, the factory trans temp gauge drops the needle on the bottom peg, and the scan gauge says 8123 or 8124

 

YOU HAVE A BAD Tranny TEMP Sensor


A BAD Temp sensor will cause ALL your problems Harsh Shift & Limp MOde

Mine does this to Occasinaly as the truck coming to normal temp once at normal temp its Fine mine would jump to the same 8100* range then drop to 80* then Back up and basicaly ALL Over

Change the temp sensor and you will be fine

 

I'm learning, Benny!!!

 

Inquiring Minds Want To Know

Where is that sensor on the tranny?

Sean

 

Yes SIR You NAILED IT BUD Give this MAN some REP POINTS




TRANNEY FLUID TEMP SENSOR CHANGE WITH PIC
https://www.ford-trucks.com/forums/1...placement.html


Here you go^^^^^^^^^^^^ Now Get it changed LOL

 

Sorrey Bud got to spread some Love First

 

That's OK Benny.... I'm too old to enjoy 'em anyway!!! LOL

 

Rough estimate on a replacement sensor? Just started a new job and won't get paid for a month. Ugh.

 

Price was in that link to the HOW TO

 

looks like upto 500.00 to have it done

Around 100.00 do it yourself sensor and fluid and probably less

Tousley wants 12.00$$ for sensor cant beat that

Part Number "BC3Z-7H141-A" was found for FORD, but we could not verify the part fits the selected vehicle.
You may still purchase this part below.


Quick Order
Part Number BC3Z7H141A
Part Name SENSOR - TRANS. FLUI
MSRP $19.04
Core $0.00
Online Price $11.52

 

Maybe only 50.00-60.00$$$ with fluid and sensor from tousley

not to bad IMO

http://www.tousleyfordparts.com/

 

Guess you could go really cheap and save the fluid and change the sensor and filter and put the Old Fluid Back in

this way you would be $$12.00 plus shipping

probably get it done under $$20.00

 

how much fluid does the tranny hold anyway? With my mileage I'm due for a fluid change, so maybe I'll just live with it for now and change the fluid when I get my paycheck.