Where is the low coolant message on a Duramax?
During PDI, coolant should be added to fill the upper chamber of the radiator surge tank. (Fig. 6) A coolant level that is low enough to turn on the Low Coolant message will be below the horizontal line across the radiator surge tank. (Fig.
Is the coolant level on my Silverado Sierra low?
A Low Coolant message may be displayed on the Driver Information Center of some 2017-2018 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). An inspection of the radiator surge tank may appear to show a low coolant condition.
What causes low coolant level in radiator surge tank?
The low coolant level in the radiator surge tank may be due to the fill process at the assembly plant, which cannot purge all of the air from the cooling system and the surge tank. After the engine has been thermally cycled, air rises and causes the coolant to become lower than when initially filled. Coolant Levels
Is the coolant in my tank always full?
The coolant reservoir is separated into two parts. The normal reservoir, which has your pressure cap on it and will be full all the time and the level will fluctuate a little when cold vs hot. That level is always checked cold (tank has full cold mark on it).
Why does the low coolant light keep coming on?
Some additional reasons for why your low coolant light might come on include: Air in the system [This is especially prevalent following a coolant service, during which air pockets can form in the system, causing the coolant level to read artificially higher than it is, and these air bubbles must be “burped.”
Why is my car coolant low?
- Overflow Reservoir. Most overflow reservoirs come equipped with a small tube that allows the coolant to escape if the engine gets hot enough and the coolant expands past the full
- Radiator Leaks. Small pinhole leaks in the radiator will cause coolant fluids level to drop.
- Leaking or Blown Head Gasket.
- Hoses and Connections.
- Radiator Cap.
Why is coolant low?
There can only be one reason why your coolant is low: it’s leaking! The coolant is contained within a sealed system so, if it’s in good condition, the coolant level should not change.
What should I do if my coolant level is low?
Don’t Do This = Do not replace the coolant level sensor, HVAC control module or radiator surge tank. A revised calibration has been developed to address this condition. Technicians are to reprogram the Heating Ventilation and Air Conditioning (HVAC) control module with the latest software available on TIS2WEB.
When did the coolant message come on on my Silverado?
Bought my 2017 GMC denali 2500 HD 6.6L on 5/6/17 and that night the coolant message came on….Brought the truck back the next day, service writer opened the coolant cap which turned off the message for two days and they/he didn’t “see” the message on the dash or in the scan tool history.
Why does my GMC 2500 have a low coolant light?
A good diagnosis goes a long way. Would’ve saved you from having to buy 2 coolant tanks. I have a 2017 GMC 2500 HD with the 6.6 Duramax. The truck now has about 35,000km on it and the low coolant message is appearing at almost every start up. The tank is not low but I topped it off right to the cap and the message still pops up.
During PDI, coolant should be added to fill the upper chamber of the radiator surge tank. (Fig. 6) A coolant level that is low enough to turn on the Low Coolant message will be below the horizontal line across the radiator surge tank. (Fig.
A Low Coolant message may be displayed on the Driver Information Center of some 2017-2018 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). An inspection of the radiator surge tank may appear to show a low coolant condition.
The low coolant level in the radiator surge tank may be due to the fill process at the assembly plant, which cannot purge all of the air from the cooling system and the surge tank. After the engine has been thermally cycled, air rises and causes the coolant to become lower than when initially filled. Coolant Levels
How can I check the coolant level in my engine?
Find the expansion tank Make sure you find the right tank. (Adding antifreeze to the screen wash, brake fluid or power steering reservoir could cause damage.) Check your vehicle handbook to find the location of the coolant filler cap. 2. Check the coolant level The coolant should be between the min and max marks on the side of the expansion tank.
When does the low coolant level warning light go out?
When you start the engine, the low coolant level light should come on for a second or two and then go out. If it doesn’t go out, either the coolant level is too low or there is a problem with the sensor system.
What should I do if I have a problem with my coolant?
Many modern cars will have a dashboard warning light to let you know if there’s a problem with your coolant. You should get your car checked at a garage if the warning light comes on. If you need to check it or top it up manually, here’s what to do. 1. Find the expansion tank Make sure you find the right tank.
When does the check coolant message come up?
I had the Check Coolant message come up when the temperatures here in Baltimore got well below freezing for a few days. I checked the coolant and it seemed okay…just barely above the minimum level when cold, but at least above that. But here’s the thing: the message says “check coolant level” not, “low coolant”.
Is there a ” check coolant level LOW ” warning?
Anyway there does not appear to be separate “check coolant” and “coolant level low” warnings, it is an on/off type of sensor but the low coolant issue is not sever as long as the engine temperature is fine, that is why it only reads “check engine”. I got the same warning message last week.
What should I do if my coolant level is high?
Refill your coolant, making sure to bleed any air out of the system, replace the plug and top off your coolant reservoir. Start your engine and drive carefully to test whether there’s any air caught in your system. Continue to inspect your coolant reservoir for any signs of a leak. Never refill your coolant when your engine is hot.
Where do I find the coolant reservoir on my car?
Open your hood and locate your radiator and coolant reservoir. Some older vehicles don’t include a reservoir, but most modern vehicles have a small tank for filling and checking the coolant level. The reservoir should be clear plastic, so you can easily see the level of coolant and the maximum fill line.