![]() The GM service bulletin PI0631F for the 2012-2013 Chevrolet Impala mentions the issue with the wiring harness rubbing on the front right side of the transmission. The engine may run in fail-safe mode: The air conditioner may stop working and the radiator fans may run constantly.įor example, as per the service bulletin 05-002-12 for the 2011 Dodge Journey with the 2.4L engine, to repair the trouble codes P0117 (Engine Coolant Temperature Sensor Circuit Low) or P0118 (Engine Coolant Temperature Sensor Circuit High), the brake booster vacuum hose that was routed too close to the ECT sensor connector must be replaced. In some cars, symptoms of this problem show up as erratic readings of the temperature gauge. This causes interruptions in the signal to the PCM and the PCM sets the fault. ![]() One of the common problems is when the sensor has poor connection inside or in the connector or in the wiring harness. If the signal from the sensor is missing, or it is outside of the expected range, the PCM turns on the Check Engine light and stores the related trouble code in its memory. Based on this signal, the PCM adjusts the engine performance and operates the electric radiator fans when the temperature reaches a pre-determined level. The PCM supplies a reference voltage (typically 5 Volt) and constantly monitors the ECT sensor signal. In some cases, this may help prevent overheating.Īn ECT sensor is connected to the main computer (powertrain control module or PCM). This allows the CHT sensor to measure the temperature of the engine correctly even with loss of coolant. The CHT sensor (see the photo) works the same way, but it measures the temperature of the cylinder head metal and is not immersed in coolant. Some cars use a cylinder head temperature or CHT sensor instead of, or in addition to the ECT sensor. Steps to diagnoseĮCT sensor is connected to the engine computer or PCMĪ second coolant temperature sensor could be installed in another part of the engine, or in the radiator. Signs of automatic transmission problems.How to check the engine when buying a used car.How to get the best deal on a used car?.Buying a Used Car: 10 Common Mistakes to Avoid.Locate the top hose that is attached to the radiator. Where Is The Thermostat Located On A 1995 Ford Probe GT And How Do You Replace It? The easiest way to locate it is to find the upper radiator hose and follow that to the engine block. Where Is The Thermostat Located On A 2000 Cadillac Catera? Where Is The Fuse Box Located On A 1982 Chevy Truck?ĥ speed,dual wheels,26000 original miles garage kept. Follow the upper rad hose to the engine cylinder. ![]() The thermostat is located on the right side of the engine. Where Is The Thermostat Located On A 2001 2.4 Liter Z24 Cavalier? Where Is The Intermittent Wiper Relay Located On A Ford Extra Cab Ranger Truck? It's located right under the drivers seat. Where Is The Thermostat Located On A 2002 Chevy Cavalier 2.2? Vin numbers are always located in the front windshield corner on the drivers side. Where Is The VIN Located On 1951 Chevy Truck 3100? Not sure in new cars,but in most older cars it is under the top radiator hose on the cars motor. Where Is The Thermostat Located On A 2002 Pt Cruiser? The thermostat is located on the upper middle region of the motor. Where Is The Thermostat Located On A 1999 Dodge Neon? My car is overheating and I am trying to change the thermostat. Where Is The Thermostat Located On A 1998 Pontiac Grand AM? Drop the new thermostat into the spring mechanism where there is a narrow recessed area. Using a scraper or a putty knife, remove the old gasket from the thermostat cover and sand away any remaining traces of the gasket.Loosen the two bolts on each side of the thermostat cover with a ratchet socket and lift the cover off to remove the thermostat. Twist the hose to loosen it from the thermostat cover and use spray lubricant as necessary. After you have located the thermostat you will need to remove the hose by using screwdrivers of pliers to pull of the clamp.When the noise stops, you can then remove the cap completely. First you will need to open the radiator cap by slowly turning it and listening to the pressure being released. ![]() In order to change the thermostat on an International 4300 truck, there are a few simple steps that can be carried out to remove the old one and replace it with a new one. This cover will have two bolts on each side. It is recognizable by a two inch thick black hose that leads from the top of the radiator to the top of the engine and is clamped onto the thermostat cover. The thermostat in an International 4300 truck can be located near the radiator.
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