sonjaab Posted January 28, 2021 Author Report Share Posted January 28, 2021 (edited) Well All.......... Well I replaced the heater core again! Heat still piss poor! Temp door at stops and functions normally. And ideas? Been driving my winter rat anyway in all this slop n salt ! Edited January 28, 2021 by sonjaab Quote 93 DeVille-13 Chevy Impala 72 GTO - 77 Triumph Bonneville 84 Z-28 Syracuse NY Link to comment Share on other sites More sharing options...
Logan Posted January 29, 2021 Report Share Posted January 29, 2021 Hoses may be routed wrong. Looks like the 4.9L water pump may be using a plastic impeller......these can get loose or crack and slip. Can cause odd flow problems. Quote Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
Logan Posted January 30, 2021 Report Share Posted January 30, 2021 More... http://www.westcoastfieros.com/forum/son-of-bi-fracking-water-pump_topic1685.html Quote Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
sonjaab Posted February 4, 2021 Author Report Share Posted February 4, 2021 Its all still GM factory untouched except for the heater core hoses. No overheating. Still haven measured temps at heater core. STILL gotta hit up Harbor Freight for one of those insta. temp guns. to check. Winter rat heat cranks! Quote 93 DeVille-13 Chevy Impala 72 GTO - 77 Triumph Bonneville 84 Z-28 Syracuse NY Link to comment Share on other sites More sharing options...
sonjaab Posted January 19, 2022 Author Report Share Posted January 19, 2022 (edited) And the Weak Heat story drags on................ Well.......I blew the motor in my s-10 so the Caddy with the poor heat is in winter service ! Already busted off the drivers door cladding! Brrrr........Its been frigid -0 in syr. ny area. Mucho snow too! Been freezin to death. Even letting the car run for a hour or so. Then its barely warm and notice when driving the heat is even weaker! New core, temp doors work......... DUH ! New thermostat ! Been afraid to touch them virgin thermo. housing bolts. Engine clean and a easy turn of socket they came loose..........Phew! Got one 195 stant (wrong temp?), gasket......... Installed in minutes, start car (garage door open), fill and burp rad., install rad. cap, eyeball under hood 4 leaks............. BANG ! Wicked HOT heat ! Edited January 19, 2022 by sonjaab Quote 93 DeVille-13 Chevy Impala 72 GTO - 77 Triumph Bonneville 84 Z-28 Syracuse NY Link to comment Share on other sites More sharing options...
rockfangd Posted January 20, 2022 Report Share Posted January 20, 2022 T-stat was my exact thought. Glad it went well. What happened to the S10 engine? was it the 2.2l or the 4.3l? Both were actually very good in the S10 Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
sonjaab Posted January 21, 2022 Author Report Share Posted January 21, 2022 The s-10 is a 4.3 v-6. Figured the intake gaskets disolved like I see all over the s-10 forums. Its got 200k on its beautiful rust free body! Cold a/c and hot heat too. Engine oil like a milkshake........... Changed the oil and filter and it still runs good. NO coolant in it. Gotta do a coolant pressure test and a compression check before i do anything else. Daily below zero and mucho snowfall here in frozen NY has killed my motivation to mess with it. I am lucky to have a warm heated garage tho. My poor z-28 has to sit outside for now as I need the garage bay open just in case I need motivation. LOVING that smoking hot heat in the Caddy tho! Quote 93 DeVille-13 Chevy Impala 72 GTO - 77 Triumph Bonneville 84 Z-28 Syracuse NY Link to comment Share on other sites More sharing options...
rockfangd Posted January 22, 2022 Report Share Posted January 22, 2022 Probably is intake gaskets. If they are original they may still be the cement ones. The acidity in the coolant causes the most problems with these. I change coolant every couple years regardless of what it is. Been trouble free Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
sonjaab Posted February 13, 2022 Author Report Share Posted February 13, 2022 BTW......The PO of the truck changed the coolant from Deathcool to reg. antifreeze. I figure the damage from Dex was already done, Quote 93 DeVille-13 Chevy Impala 72 GTO - 77 Triumph Bonneville 84 Z-28 Syracuse NY Link to comment Share on other sites More sharing options...
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