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-   -   88 GW 5.9 Engine Block Heater Leak (http://www.ifsja.org/forums/vb/showthread.php?t=190405)

gl21133 11-16-2021 11:22 AM

88 GW 5.9 Engine Block Heater Leak
 
Per the title I've got a coolant leak, appears to be entirely coming from the engine block heater. It has a hex fitting in the center, I was able to tighten this maybe 1/8 turn but it's still got a few drops this morning. I take it this is just pressed into the freeze plug hole, right? Remove, clean, replace?

gl21133 11-16-2021 08:49 PM

Possibly dumb question; for a short while would it be dumb to deal with rtv? Just on the outside until I can properly swap it.

Tripwire 11-17-2021 07:57 AM

id just buy a new one?

steve

'89_Wagon 11-18-2021 08:53 AM

5.9's came with an engine block heater? Is that aftermarket? Would love to see a picture.

babywag 11-18-2021 09:10 AM

dealer installed or aftermarket none came with one from factory afaik

letank 11-19-2021 02:26 PM

here is a pict, not mine,


http://www.ifsja.org/forums/vb/showthread.php?t=162622





I have a similar one on the 85, and yes it was dripping 20 years ago... I was told to smack it with a punch and it would dislodge... nahhhh, did not happened...



I poured some coolant leak repair powder... and yes, the coolant temp was a bit higher, I drove it for about a month, then drained a bit of coolant, may be a few quarts... temp was still a bit high and drained another few quarts... and the leak never came back...



Of course in 20 years I replaced the water pump, drained the coolant a few times... still leak free


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