SES And low coolant light
Thread Starter
Joined: Aug 2002
Posts: 318
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From: La Porte, Tx
SES And low coolant light Well I obviosly know what I need. Does the coolant light set off the SES? Also what kind of coolant do you guys recommend? The guys must not put enough coolant back in when the stat was installed.
The low coolant light is the biggest piece of **** ever. They discontinued them on the later cars. 
It's probably got plenty of fluid, and just giving you a false light. The fix is to simply unplug it. The sensor is on the radiator right below the cap. Mine even comes on every now and then completely unplugged. It shouldn't set off the SES light BTW, you should get that one scanned.
It's probably got plenty of fluid, and just giving you a false light. The fix is to simply unplug it. The sensor is on the radiator right below the cap. Mine even comes on every now and then completely unplugged. It shouldn't set off the SES light BTW, you should get that one scanned.
Thread Starter
Joined: Aug 2002
Posts: 318
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From: La Porte, Tx
Originally Posted by dlrls1
Low coolant can set a SES light. It sets a code for coolant temperature not allowing closed loop operation. Hope this helps.
Thread Starter
Joined: Aug 2002
Posts: 318
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From: La Porte, Tx
Originally Posted by TheBlurLS1
I've never had mine set the SES light, I guess yours might actually be low?
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Verdad Gallardo Thread Starter
Joined: Aug 2002
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From: La Porte, Tx
Originally Posted by FIREHAWK #07
ever since the "cold" weather has come, my low coolant light has came on; once it warms up the light goes away.... anyone had a similar problem....???
Here's how I flushed mine....
https://ls1tech.com/forums/showpost....8&postcount=19
It had some SERIOUS mud in the system before I started. It has been clean ever since this was done at 40k miles ago (127k now), fluid changed a few times since for cam swap/head pull/thermostat change. I believe there's more info on the second page as to how you can remove/clean out the overflow tank too.
https://ls1tech.com/forums/showpost....8&postcount=19
It had some SERIOUS mud in the system before I started. It has been clean ever since this was done at 40k miles ago (127k now), fluid changed a few times since for cam swap/head pull/thermostat change. I believe there's more info on the second page as to how you can remove/clean out the overflow tank too.
