Engine Coolant temperature sensor

See below On top right front of engine, in water outlet tube See the diagram below for location

Good afternoon,

Yes, it could cause it but it is a stretch.

The most common cause is a vacuum leak from a hose worn or disconnected or the PCV valve.

https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers

Low fuel pressure will also cause this and is the most common cause for these codes.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Roy

I just got this truck, some one had started trying to fix it, but just messed it up. I had to replace the upper and lower intake gaskets, waterpump, and thermostat. My problem is The plug was cut that goes to the temperature gage, and the gage sending unit was not in the intake(next to thermostat housing) I replaced the sending unit with a new one, and I tested the temp gage by grounding it out, and it spiked to full hot which means its good, but I cant get it to read the temp. I dont know what to do next. I just hooked the cut wire to one of the terminals on the sending unit its a one wire set up and it just dont work. what should I do any info would be great and worthy of a good donation thanks

Hello again.. could you please use the reply button at the bottom of this box .. not open another box .. it's pure luck i spotted your name in the list .. if you use the reply button it tells me you have replied !! thanks COOLANT TEMPERATURE READS INACCURATELY (RANGER) Perform TEMPERATURE GAUGE TEST under COMPONENT TESTS. If temperature gauge perform properly, replace temperature sensor and retest system. If temperature gauge does not perform properly, go to next step. Turn ignition off. Disconnect temperature sensor harness connector. Remove instrument cluster. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. Disconnect instrument cluster connector C215. See Fig. 3 . Measure resistance of Red/White wire between instrument cluster connector C215, terminal No. 3 and temperature sensor harness connector. Resistance should be less than 5 ohms. Measure resistance between ground and instrument cluster connector C215, terminal No. 3 (Red/White wire). Resistance should be more than 10 k/ohms. If resistance is as specified, go to next step. If resistance is not as specified, repair open or short in Red/White wire and retest system. Disconnect instrument cluster connector C216. See Fig. 4 . Turn ignition on. Measure voltage between ground and instrument cluster connector C216, terminal No. 1 (Red/Yellow wire). If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair open in Red/Yellow wire between instrument cluster connector and fuse No. 11 in interior fuse panel and retest system. Turn ignition off. Measure resistance between ground and instrument cluster connector C215, terminal No. 2 (Black/White wire). If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Black/White wire between instrument cluster connector and ground and retest system. Measure resistance between instrument cluster temperature gauge clips "B" and "S". Resistance should be 215-256 ohms. Measure resistance between instrument cluster temperature gauge clips "G" and "S". Resistance should be 90-110 ohms. If resistances are as specified, replace instrument cluster printed circuit and retest system. See PRINTED CIRCUIT (RANGER) under REMOVAL & INSTALLATION. If resistances are not as specified, replace temperature gauge and retest system. See GAUGES under REMOVAL & INSTALLATION. 3)

4)

My 1994 Ford Ranger won't blow very warm air and the temperature gauge doesn't get into the normal range either, i replaced the thermostat and the coolant temp sensor but neither have worked, is there something else that could help the heater blow warmer air?

firstly make sure your coolant is at the correct level and 50/50,(it is all relevant) then you should check for air pockets, then the radiator cap can play a role too

Got a code for ect sensor on my 93 Ranger 2.3 4 cyl but can't find its location. Repair manual says in thermostat housing but its not.Can you tell me where it is?

its on the right friont of engine on coolant line pic i have sent ishows temp sender. sensor is on right front coolant line