MY 2000 had a slow coolent leak from the back of the engine someplace. It is only held in by friction, and its not unusual for them to slide downwards a bit, which leads to a false reading.Įdit : As you can see, the sensor can be pulled out without losing any coolant from inside the reservoir. I have a 2002 Silverado and my coolant light. If your coolant level is OK, then that points to a sensor issue, not a temperature problem.įeel under the reservoir and make sure the "sensor shaft" is pushed fully home (upwards) and that the electrical connector is firmly attached at the end of it. In order to get an accurate reading, your 4.6 liter. I had a low coolant light even though the level was at the 'cold' level, added another pint or two and it never came back. Checking the engine coolant (also known as antifreeze) level in your 1998 Ford Mustang is pretty easy. Sort by Oldest first Oldest first Newest first Most reactions. engine temperature and coolant level are (in a sense) not connected. 1994 Mustang GT- CAI, modified mid pipe, flowmaster mufflers. Also - the "float" can - over a long period of time - absorb water and stop working properly, or just jam on the tube. The signal from this magnet is picked up by a reed-switch in a small cylindrical device which slides up inside the hollow shaft, and has an electrical connector on the end. The coolant level sensor is difficult to describe, but there's basically a magnetic "polo-mint" shaped float which moves up and down a hollow shaft. (The oil pressure gauge is the same - basically an on/off switch.) It will stay at the halfway point until it is too late, at which point it will go up into the red. Animals love its sweet taste, so even a spilling a small amount on your garage floor can end up in the dog's stomach pretty quickly.First of all - don't pay any attention to the temperature gauge - it's basically an ornament. Promptly wipe up any spilled fluid as it is highly toxic. P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) Its 65 degree outside. Always wear safety goggles when working on your Mustang. The car has 6,400 miles on it and has been tracked once (two weeks ago). Removing the coolant reservoir cap on a warm engine could cause the cap to fly off at a high rate of speed and fluid to spray out of the reservoir. These coolants will typically say 50/50 or pre-mixed on the front of the coolant bottle. Additional information on check engine lights. Scan for Codes - How to scan your vehicle for trouble codes. Locate OBD Port - Find the OBD port on your vehicle. California Residents: Proposition 65 Warning. The calculations utilize SAE J1349 engine results and Ford electric motor dyno testing. Some coolants will come premixed-that is, you don't need to add any water. Getting Started - Prepare for the repair. Every cap is tested for proper function before leaving the manufacturing plant. Mix the coolant / antifreeze with distilled water so that you have a combination of 50% coolant and 50% water. However, the light may remain on or can come back on due to another issue, such as a coolant fluid leak or a problem with a sensor in the system. In most cases, simply topping off with the correct fluid will resolve this issue. Be sure to check your owners manual to determine the correct type of fluid to add - for Fords, it will typically be in a section titled Fluid Capacities in the back of your manual. Honestly I never even realized there was a dash light that indicated low coolant. This warning light most commonly comes on to let you know that your cars coolant fluid level is low. The video above shows you where the coolant reservoir in your Mustang is located and how to add coolant / antifreeze. Motorcraft 1 Gallon Green Concentrate Coolant/Antifreeze - VC5. Replace the sensor if necessary, or dont replace it but check your coolant level often. Next time you start the car the light should be off, unless the sensor is malfunctioning. Make sure to check your engine when it is cold for an accurate reading. With the key on, pump the accelerator pedal 3 times, then turn off the key. Engine coolant / antifreeze circulates through your engine to keep it cool in the summer but won't freeze in the winter. Adding engine coolant (also known as antifreeze) to your 1999 Ford Mustang is pretty easy.
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