However, one of the most common locations is on or near the thermostat housing. Standing in front of the vehicle the one on the left is for the temp. Open the hood of your vehicle to find the coolant sensor. When you hear hoofbeats in Wyoming, think horses, not zebras. The test only takes a few minutes.
When I pulled the data stream up on my automotive scanner the coolant temperature read -30°F. Once the connector s pulled off, look in it at the terminals to see if it looks like there is green corrosion. I went out to see if I could get you a cold by Calif. Of course you need to remove the sensor from the vehicle to use this method. The coolant temperature sensor test is rather simple. I was in and under the truck in that area the other day while I was changing my half shaft.
Check to see if you have a relay sticking closed. This doesn't mean that every vehicle that has one needs one replaced, but it appears that very few of these trucks will make it through its natural life cycle with the original coolant temperature sender installed. At 100C 212F it should read 47-53 Ohms. Actually, it will be a lot easier to replace if you remove the starter. There should be one in each pipe before the cats and one after each on the V8! Remove corrosion from the sensor's electrical terminal using electrical contact cleaner and repeat your test, if necessary. This voltage output is sent to the electronic control unit of the vehicle, which constantly measures the resistance across the car's coolant.
You can do it at home using a digital multimeter and a cooking thermometer. So you eliminate the thermostat as another possible failure. There may be two temperature sensors in some vehicles, one to send information from the engine system to the control unit and another from the control unit to the dashboard. Take another pair of readings in about one to two minutes again, always noting the value readings. Other indicators of a faulty sensor include difficulty starting your ride after it has reached its typical working temperature, or if your coolant temperature gauge fluctuates irregularly.
A functional coolant temperature sensor not only ensures a safer ride, but it also prevents your vehicle from using more gas than necessary. Set the multimeter to the Ohm symbol for resistance. On the other hand, if the thermostat works fine, the engine temperature will reach about 200F 93C and will drop afterwards as the thermostat opens. Sovrn This is an ad network. Most sensors of this type have a resistance value of 3000 ohms or more at about 55F 13C.
Another telltale sign of your coolant temperature sensor not functioning properly is if your engine is overheating frequently. You could relay on the temperature gauge on your dashboard. Replacing the Chevrolet Coolant Temperature Sending Unit The first thing we should briefly discuss becomes the location of the Chevrolet coolant temperature sensor. See how to diagnose, repair and get parts for the job. Blue Water Warning Light on Dash? Nov 28, 2012 Get the coolant pressure tested,its definitely leaking coolant. Do this before you buy a new sonsor unless you already did. Refer to the engine coolant sensor temperature vs.
The gauge connects to the sending unit. But I mean the car run's very cool it also does not make it run rough. Also, make sure to inspect the sensor electrical terminal for damage and corrosion, and check the circuit wires for possible damage. You can check the sensor for correct reading by using a scan-tool. If the coolant temperature sensor fails and sends a cold signal to the computer, this can confuse the computer and cause it to unnecessarily enrich the fuel mixture. This has Light Green with Red, and Black wires. Take the connector off and see if it has green corrosion inside.
Here is a diagrams for both engines, below and a guide that will walk you through the steps of changing the coolant temperature sensor. Nov 27, 2012 This code refers to the engine coolant temperature sensor circuit. When should you replace the sensor? At 60C 140F it should read 170-210 Ohms. You may have to move the throttle cables to get to it and I believe that the bolt holding it is a 8mm. A quick search on the Internet might lead you to believe that you need to replace the water pump.
The sensor can also be tested with a multimeter but this will tell you if that made a difference or not. You can also find other images like wiring diagram, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring harness, fuse box, vacuum diagram, timing belt, timing chain, brakes diagram, transmission diagram, and engine problems. As I was wiping the grease off that got slung around I noticed this sensor with a wire and thought it may be the temp sensor. The gauge connects to the sending unit. I have tested my thermostat, coolant temp sensor, and temp sending unit. . You can see the number through the windshield on the driver's side.
You can also find other images like wiring diagram, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring harness, fuse box, vacuum diagram, timing belt, timing chain, brakes diagram, transmission diagram, and engine problems. All show to be good. Another thing to mention, in this article we're concentrating on the Chevrolet V-8 engine. Often the problem is a faulty sensor, but it could be a wiring problem in the circuit, a poor connection at the sensor, or a missing or stuck open thermostat. I wonder how much coolant you would loose? The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the.