Temp Gauge "O" equals ???
Thread Starter
|
Postmaster
Joined: Oct 2008
Posts: 3,026
Likes: 0
From: Renton, WA
Temp Gauge "O" equals ???
I am wondering if anyone has any info or experiance that can tell me what temp our gauges actually read. My truck's temp gauge just sits at the "O" in NORMAL, if it wasn't for the fact that it is lower before I warn it up I'd think it was stuck. That is until until the other day when I was pulling a heavy trailer up a grade and the needle went to "R". I was wondering what temp O or R actually is.
Does anyone have both the factory gauge and a real temp gauge that can compare the readings and give us an idea if O is 165 or 185 or whatever, am I overheating if I get to M?
Thanks
Does anyone have both the factory gauge and a real temp gauge that can compare the readings and give us an idea if O is 165 or 185 or whatever, am I overheating if I get to M?
Thanks
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
Based on personal experience, from before and after I switched to a mechanical temp gauge with real numbers on the scale, the "O" is about 195 and the "R" is about 205-210. If mine gets up to the "M" or "A" then I need to cool it down somehow.
Junior User
Joined: Nov 2008
Posts: 76
Likes: 0
well i know on my buddies truck we just did the Mark8 fan swap and the temp switch range turns on at 185 then cools it to 170. The needle gets to the left side of the M and starts to cool down all the way till it gets between the O and the R.
So if i had to guess, 160-165. but stock gauges are going to be slightly off from each other. Try getting a cheap aftermarket one and screw it into your intake manifold for a dead accurate reading.
So if i had to guess, 160-165. but stock gauges are going to be slightly off from each other. Try getting a cheap aftermarket one and screw it into your intake manifold for a dead accurate reading.
Posting Guru
Joined: Nov 2008
Posts: 1,138
Likes: 0
From: Lakewood, Colorado
but i will have my guague hooked up later this week and i will beable to tell you how it reads...
Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
A stock 195F Thermostat O-R (mostly O). 180F performance type never past N. 195F Performance type once it reaches O it might as well be a decal. 29 90lb. sacks of cement, towing a commercial portable mixer on a slight grade almost got to R. useihg an infrared temp reader on my 87' 5L, O shows 195F running temp.
Trending Topics
Postmaster
Joined: Aug 2005
Posts: 4,728
Likes: 8
From: Cleveland, TN
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
and agreed.
Thread
Thread Starter
Forum
Replies
Last Post
DeadBody
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
16
Dec 30, 2012 09:32 PM
spyder314
1987 - 1996 F150 & Larger F-Series Trucks
15
Aug 15, 2007 09:53 PM
MercuryM100
1961 - 1966 F-100 & Larger F-Series Trucks
1
Sep 7, 2004 12:13 PM
mike5097
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
3
Dec 2, 2002 01:22 PM