dhctss

iTrader: (3)

I just had my coolant drained and replaced. The heat was workind before and now is not working. I must have a blocked heater core. I dont have no leaks and the air blows hard just not hot at all. Anyone that owns a garage or can help me flush it. If it wasnt so damn cold I would try to flush myself. Just pm me if you can help. Could the thermostate be stuck or is heater core that is another ? Anything I could put in that will clear it out on its own? Thanks

EDS01SS

iTrader: (30)

if it worked before then there isnt a blockage. possibly there is still air in the system. feel the heater hoses in the engine bay to see if they are hot or not. both hoses will be hot if it is circulating through the core properly.

RedHotG8

iTrader: (1)

If they drained it and replaced it the heater core can't be blocked, that only happens during a power flush. I'd say it's low on coolant and has air in the system like Ed said, if that's not the problem then it's a stuck thermostat.

My84Z

iTrader: (18)

Either your coolant is low or when they drained it it made some coolant sludge come loose and is now stuck in your hearer core. Just flush the core.

My84Z

iTrader: (18)

My wofes vert had overheating issues and no heat turns out when the cam was done the heater core blocked up etc...

dhctss

iTrader: (3)

My problem dont know where to flush with this cold weather. Anyone want to help im in manchester. I could throw you some cash. The heat would take a little longer to heat up but it worked good. I think i had a sludge buildup somewhere already.would a powerflush unblock it

dhctss

iTrader: (3)

How do i see if it is thetmostat. What to look for. Im not the best at diagnostic.wish i left a lone wasnt fun driving today. How do i purge air. Do i start car and take cap when its cold

RedHotG8

iTrader: (1)

Check for air/low coolant first. Then backflush it if it's clogged to push the blockage out of the heater core.

Yeah remove the cap, start it up and let it run, and the air will bleed out of the system.

dhctss

iTrader: (3)

Ok thanks redhot. I will try to bleed it first

whitdog54

iTrader: (19)

check your coolant level too, my water pump was pissing out coolant and causing me to not have heat after a couple hours of driving. Didnt leak when sitting or idling.

do they use dexcool or the green schitt

dhctss

iTrader: (3)

universal green schit. I think the dexcool left gunk because the coolant resoiver dipstick is corroded. I wish i changed in spring. I dont know where i can get it backflushed to cold outside. Wasnt to happy about them not using dexcool. They suck old **** out and put theuniversal in. The levil is fine. I hope its just air.

dhctss

iTrader: (3)

For the backflush of the heater core. All i need to do is disconnect the two hoses from the water pump? Do i disconnect them both and flush them both or one at a time. I just need to get acces to a hose inside

dhctss

iTrader: (3)

No dice on purging air. Good thing i got russian and hungarian blood. Going to use a garden hose when warmer. What is chance irts thermosrat. If i put a 160 thermostat do i need a tune?

dhctss

iTrader: (3)

Anyone that can help me flush would be great. I will pay you and bring the beer.

04qsgtoMA

iTrader: (5)

How did you purge the air?

dhctss

iTrader: (3)

i took cap off put the heat on high. Ran car for a while. Is this wrong

thechef

iTrader: (13)

who changed your coolant? if it was a shop bring it back to them and say WTF....and make them fix it

whitdog54

iTrader: (19)

I would get it tuned, lower thermostat you want to fans to come on at lower temperature tune. Although, i wouldnt waste money on a tune just for a thermostat haha

dhctss

iTrader: (3)

Jiffy lube. Lol

RedHotG8

iTrader: (1)

I hope you learned not to take it there anymore, or any of those cut rate butcher shops. I do all my own work for that reason, and if I can't fix it I take it to my former Pontiac dealer since they always do it right.