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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Halogin13 on April 25, 2018, 10:47:54 am

Title: Coolant leak trigger MIL light?
Post by: Halogin13 on April 25, 2018, 10:47:54 am

Can a leak in the coolant system trigger the check engine light in a 1987 5.7 L TBI truck?

Title: Re: Coolant leak trigger MIL light?
Post by: VileZambonie on April 25, 2018, 11:31:08 am

If the level were low enough

Title: Re: Coolant leak trigger MIL light?
Post by: Irish_Alley on April 25, 2018, 03:14:36 pm

better yet, why not be on the safe side and read the codes and find out instead of guessing?
http://forum.73-87chevytrucks.com/smforum/index.php?topic=29949.0

Title: Re: Coolant leak trigger MIL light?
Post by: Halogin13 on April 25, 2018, 03:35:42 pm

That’s the next step.. I wasn’t sure if the rudimentary cpu in this truck would trigger that.. recently addressed an oil pressure issue, then as soon as I resolved that, the next day the radiator cracked at the outlet.. throwing code more now than before,,

Title: Re: Coolant leak trigger MIL light?
Post by: VileZambonie on April 25, 2018, 05:22:05 pm

You need to read the codes.