cat back 21

iTrader: (4)

I've had my 94 Z28 for ever and the heater has never worked . I finally had my mechanic check it and he said that only one of the 2 hoses going to the heater core were hot , so it was clogged up . He suggested removing the 2 hoses and try flushing out the core first before replacing it . Anyone ever try this or have any useful tips . Should I use air or water or both .Thanks in advance .

RickyMartinZ28

iTrader: (5)

They have an actual flush that is badass. Mine has never worked very well, I think mine is due to the 160* thermostat, I think it never gets hot enough going down the highway, but in the city it does get hot enough to work in stop and go traffic.

-Rick

Davey J

I tried everything when I had mine still in the car and nothing seemed to work
I took out my heater box,core,hoses and vents for weight reduction and prolly saved 40 lbs or more

RickyMartinZ28

iTrader: (5)

Goin down the highway in the winter it'll barely get above the 1st mark on the temp gauge, I freeze all the way to school... about 40 miles.

-Rick

chavez885

iTrader: (12)

You can flush it supposedly, i just bought a new one, 50 bucks. Heater SUCKED until i replaced that bitch, i thought it was my t-stat

Davey J

I hate dexcool

Paul Bell

iTrader: (9)

A good flush with a water hose will set you straight. Take off the hoses and do it both ways until the water coming out the other one runs clear. Works wonders. I just did this and I went from chillin to sweating.

Smokinlt1

I did the water hose trick and haven't had anymore problems and I also have a 160 stat.

RickyMartinZ28

iTrader: (5)

I may flush mine tomorrow and see if it helps... And I'm gonna play with my tuning a bit...

cat back 21

iTrader: (4)

well I flushed mine with air then water then air again and finally my heater is working .