Quarterwave Posted July 12, 2019 Share Posted July 12, 2019 Hi everyone, I have an aftermarket 4-core radiator and the temp gauge is not working (it was before the change). What color wire do I need to be looking for in the engine bay so that I can find the temp sender? Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted July 12, 2019 Share Posted July 12, 2019 Coolant sender for a 351 H.O. should be a red/white wire. I'm getting this from the '86 EVTM here: http://www.garysgaragemahal.com/1986-evtm.html (FUEL TANK SELECTOR/GAUGES-----F150-350 7.5L & 5.8L 4V engine) But Ford was good about keeping their harness colors the same across a wide range. Link to comment Share on other sites More sharing options...
Rembrant Posted July 12, 2019 Share Posted July 12, 2019 What color wire do I need to be looking for in the engine bay so that I can find the temp sender? Hey Quarter, The temp sender is right behind the distributor, with one wire going to it. (My '84 302 appears to be a red wire...not sure if it's striped or not...I couldn't see it well with only one coffee in me...lol). PS: If by chance you find that the sender is bad, they are still available directly from Ford. I bought one this past winter but haven't installed it yet. I have an aftermarket sender in there now but it doesn't read properly. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted July 12, 2019 Share Posted July 12, 2019 What color wire do I need to be looking for in the engine bay so that I can find the temp sender? Hey Quarter, The temp sender is right behind the distributor, with one wire going to it. (My '84 302 appears to be a red wire...not sure if it's striped or not...I couldn't see it well with only one coffee in me...lol). PS: If by chance you find that the sender is bad, they are still available directly from Ford. I bought one this past winter but haven't installed it yet. I have an aftermarket sender in there now but it doesn't read properly. If you need to go to an auto parts store, be sure you get a -sender- not a sensor. There is a difference! Sender is for the gauge, sensor is for the computer's cold engine indication. (I know you don't have one) I've never hooked them both up to meters and brought them to a boil, so I don't know their full resistance ranges. I'm sure Gary has a Ford p/n for the sender, but I'm on a phone, and although I DO have the HiPo MPC on CD I don't have a way to read it right now. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted July 12, 2019 Share Posted July 12, 2019 What color wire do I need to be looking for in the engine bay so that I can find the temp sender? Hey Quarter, The temp sender is right behind the distributor, with one wire going to it. (My '84 302 appears to be a red wire...not sure if it's striped or not...I couldn't see it well with only one coffee in me...lol). PS: If by chance you find that the sender is bad, they are still available directly from Ford. I bought one this past winter but haven't installed it yet. I have an aftermarket sender in there now but it doesn't read properly. Cory, If you have time, could you picture the end of the box with the part numbers clearly visible? Thanks, Jim Link to comment Share on other sites More sharing options...
Rembrant Posted July 12, 2019 Share Posted July 12, 2019 Cory, If you have time, could you picture the end of the box with the part numbers clearly visible? Thanks, Jim Yes, no problem, but it won't be until tonight when I get back home. The aftermarket sender I installed works, it's just that the scaling seems to be a bit off. The gauge now reads higher than it is supposed to. I would have re-installed my original sender, but I sold my carb/intake and the sender went with it. I bought the new Ford sender hoping it provides a better range for the gauge...but I haven't gotten around to installing it yet. Dealing with 3400 lbs of rust has put things like temp gauge senders at the bottom of my priority list...lol. Link to comment Share on other sites More sharing options...
Gary Lewis Posted July 12, 2019 Share Posted July 12, 2019 I'm sure Gary has a Ford p/n for the sender... From Electrical/Sending Units and the Coolant tab: Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted July 12, 2019 Share Posted July 12, 2019 I'm sure Gary has a Ford p/n for the sender... From Electrical/Sending Units and the Coolant tab: And this is indicative of *how much* of this site I still need to learn. Link to comment Share on other sites More sharing options...
Gary Lewis Posted July 12, 2019 Share Posted July 12, 2019 And this is indicative of *how much* of this site I still need to learn. 'Tis easy for me - I put it there. Link to comment Share on other sites More sharing options...
85lebaront2 Posted July 12, 2019 Share Posted July 12, 2019 'Tis easy for me - I put it there. I have never checked the resistance on the gauge sender, but as far as the EFI sensor, I believe I sent Gary that information along with the values for the other sensors TPS, EVP etc. Link to comment Share on other sites More sharing options...
Recommended Posts