Problems with coolant system in my 1986 Gmc Sierra

[king foid]

Well, i connected my bottom hose to the intake manifold and top hose to the radiator, blocking off the water pump. The heat works now, but made a funny high pitched noise first turning it on. Thanks for all the help guys!!

 

[Georgeb]

Well, i connected my bottom hose to the intake manifold and top hose to the radiator, blocking off the water pump. The heat works now, but made a funny high pitched noise first turning it on. Thanks for all the help guys!!

Glad to hear it!

 

[1low4x4]

Another thing to check is freeze plugs. One may rust or crack, you won't see it because it forms like a stalagmite as it dries on the block, but It will constantly let air in, causing most of the issues you talked about. Had that on my blue truck

 

[chengny]

That would be more like a stalactite - which starts at a high point and grows in the downwards direction. A stalagmite, on the other hand, begins to form from a low point and rises upwards.

A good mnemonic device: "Dust mites live in the carpet". And the carpet is low.

 

[1low4x4]

Yes, I'm not here to argue the difference between the two. I kept trying to type stalactites but spell check kept changing it to stalagmite.

 

[chengny]

Google was doing the same spell suggestion to me as well. Probably because I was trying to spell it "stalagtite". You'd figure they'd both start off the same?