heater core woes

[dlk]

What is the best way to backflush an aluminum heater core, and should I use a flush chemical or just water? Switch to PEAK or stay with dex cool

 

[Scottydoggs]

to flush it just take both heater core hoses off the alt bracket, then put a garden hose to one hose and flush it. flush from the other hose too if the waters not flowing out as fast as it going in. dont use a sprary end, just open hose to hose. light med pressure.

 

[Dadillac]

Remove the two hoses from the bracket as Scotty stated. Flush with your hose in both directions. I use one of these http://www.grainger.com/product/Fir...Ntt-brass+"hose+nozzle"?sst=subset&s_pp=false. The tip fits perfectly inside the hose so you can turn on the water to whatever pressure you would like with the nozzle already in the hose. Works perfectly

Don

 

[Scottydoggs]

To much pressure can blow the core up, be careful

 

[industrialfish]

Take both hoses off and only flush from the outlet of the core, not the inlet side. Not with high pressure either. Leave enough space between the garden hose and heater house to let the extra water overflow until it flows freely. You aren't trying to blast the clog out, just loosen it and let it flow out backwards.

 

[kyliek23]

My heater core cracked from doing this be very careful. New GM one costs like $100 ish on rock Auto.

2005 Pontiac Grand Prix

 

[ericspecullaas]

you paided $100 bucks for your heater core? i got mine for 55 plus tax

 

[kyliek23]

Wth. Where at?

2005 Pontiac Grand Prix

 

[industrialfish]

My heater core cracked from doing this be very careful. New GM one costs like $100 ish on rock Auto.

2005 Pontiac Grand Prix

You did it wrong. Too much pressure, wrong direction etc.

 

[kyliek23]

My fiancé did it when I was gone with my dad. So I was pretty upset.

2005 Pontiac Grand Prix

 

[ericspecullaas]

Wth. Where at?

2005 Pontiac Grand Prix

i got it from here


http://tinyurl.com/knfsqek