![]() ![]() If the pressure gauge shows loss of pressure and there is evidence of external leakage from the hoses or other external cooling system components, correct the leak using the appropriate service manual procedures. If there is no pressure loss and no signs of internal or external leaks are found, return the vehicle to the customer.ĥ. Using a flashlight, inspect combustion chambers for any sign of wetness from coolant.Ĥ.Add black light dye (SA9176NE) to the cooling system and start engine. It gets a voltage supply and puts it thru the sensor if the level is correct. Remove the spark plugs and inspect the threads for wetness from coolant and check with black light (J42220). If no leaks are found, check engine oil for signs of coolant contamination. If memory serves, the low coolant light is a THRU-PUT sensor.Inspect all of the cooling system hoses and connections for visual signs of external leaks using the black light (J42220).Pressurize the cooling system to 25 psi (172 kpa) and monitor the gauge for pressure loss during the remaining inspections. Run the engine until it is at normal operating temperature 180° F (82° C) to allow the dye to circulate through the system.ģ. Add black light dye (SA9176NE) to the cooling system and start the engine. If no leaks are found, check the engine oil for signs of coolant contamination.If leaks are found, replace the hoses and/or tighten the clamps as necessary and return the vehicle to the customer.Inspect all coolant hoses and connections for coolant leaks. This condition may be caused by porosity in the aluminum of the cylinder head casting. white smoke or coolant odor from the tailpipe.engine misfire for several seconds or.Low coolant may be accompanied by one of the following when the engine is cold: A leak may also show up as steam when the engine is hot and running. ![]() Coolant leaks usually appear as wet areas (darkened or rust-colored) around the engine compartment, or the ground under the engine. The reseviour I got is a dorman and now it seems like the light only comes on when the coolant is hot. A low coolant level light may also be a symptom of a system leak. The cooling system regulates engine temperature, and coolant, a mix of water and antifreeze, plays a vital role. It monitors coolant levels, alerting drivers to potential leaks, overheating, or evaporation. I changed out the reseviour tank and flushed it. The low coolant level warning light is crucial for vehicle maintenance and safety. It was full before up to the seam when cold. Trying to sell a car but the low coolant light is on which is obviously detracting. The fact that you jumpered the terminals of the connector, and the light went out means it has to be a bad sensor, or poor connection.Some customers may comment that the low coolant light is coming on and/or the coolant level is low with no external leaks visible. Hi guys, at my wits end here with the v6 model awd. This is the engine coolant temperature light and it is an important. Doesn't seem that bad.īut changing the bottle isn't hard either. If you have a car, you may have noticed a dashboard light that looks like a thermometer. In my mind, I've already got to check oil every epoch or so, scanning over to the coolant bottle. I'm cheap, don't like being annoyed, and it's a known failure point. Least free, most mess, best peace of mind. ( Rock Auto has em for $60 or so, plus shipping and a bottle of coolant, expect about $75. ( Less annoying, almost free, still have to check coolant from time to time.ģ) buy a new coolant bottle. Check your own coolant level from time to time)Ģ) wire the sensor wires together. The sensors were integrated into the tank, and weren't able to be replaced.ġ) deal with the light. Something is obviously still not right - even though youve taken some positive steps. The low coolant light comes on itermittantly. I have a 2006 saturn vue with about 74Kmiles. No coolant smell, no engine roughness as seen in other threads. Low coolant light comes on itermittantly in 2006 saturn v. I have not taken it anywhere to have the code checked, but figure they are related. Also, the check engine light came back on for the same code (P0128 - low coolant/thermostat/ECT), and they said they fixed it, but the code was related to the sensor with the low coolant light. Didnt have the SES light initially, but now Ive got it (no wrench). Just about every one failed, it seems like. The low coolant light comes on after the engine warms. Those sensors were common failure points. ![]()
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