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01-02-2016
so I just got done getting a new battery, $100, fixing stupid evap code which i had to do smoke test, was front solenoid that was $380, now my heat just took a dumb on me and is blowing cold air! anyone know what it could be so when I call I can ask how much it will cost to repair those items to get my heat back up and running?!?! thank you!
01-02-2016
Had same problem with my 08 grand prix I had air in my heater core line one hose was hot one was cold. Flushed the lines out with a garden hose got heat back.This happened to me a couple times then I just flushed the whole system and new coolent been ok for 2 years now
01-02-2016
where do i find those lines and can i take them out myself and do that?
01-02-2016
yup, if one or both heater hoses are cold the heater core is air bound. flush it with a garden hose, aka free.
wtf sensor was 380 bucks? not a cheap repair there.
01-02-2016
My hoses are on the firewall behind altenator . I pulled them off the block they each have hose clamps on them not to hard to do.
01-02-2016
off the middle of the fire wall your see two rubber hoses, follow them to the engine, take both hoses off the engine. then butt end to butt end put the garden hose to a one hose. when water comes out the other hose, your done. re install the hoses.
that guy in the vid dont even know wtf the blend door is, he was playing with the recirculate door up there on the pass side of the dash.
01-02-2016
hes got a v8, things are a little different.Originally Posted by daviddawg
01-02-2016
im sorry im still not fully understanding exactly what to do, can you step by step for me? confused about the water coming out? and if there are 2 hoses i have to get 2 hoses to do this? sorry
01-02-2016
on your car is two black heater hoses that lead to the middle of the fire wall. follow them to the engine and un clamp them. then put a garden hose to one of the hoses, it matters not which one. when water comes out the other hose its flushing it. let it flow for 30 seconds or so, then switch hoses and back flow it, reinstall the two hose. your heat now works.
thats as step by step as i can go, this is pretty easy to do.
01-02-2016
Best step by step there is.
01-02-2016
okay, so after i unclasp both the hoses water is going to being running from them? is car on? do i have to do anything with heat? sorry rookie over here lol
01-02-2016
car off. maybe some coolant will spill out, maybe not, dont matter.
first off locate said two hoses run the car till its temp is warm then touch the two hoses if both are hot its not the core.
if one, or both hoses are cold, its the core, continue with core flush. let the engine cool off before taking the hoses off.
01-04-2016
Okay, so blower works, both the core lines are hot so I don't want to waste time doing that, I saw that when you switch from cold to hot you should hear blend door open and close, I dont, do u think its that? This part- http://m.oreillyauto.com/mt/www.orei...4160&ppt=C0331
01-04-2016
is one side blowing hot and one side cold? then id think blend door actuator.
01-04-2016
Ok so I turned heat on full blast, pipes where warm, not hot tho, like I could sit and hold them, so def under 100* F, so I'll try the flush, but I do not hear the blend door open or shut when I switch to a/c either so maybe it's also that
01-04-2016
you can open up the glove box, then watch the pass side one move. or take it off and move the knob by hand to see if you get heat.
those hoses should be very hot if the car was up to full temp. aka 195 ish. if you can hold them forever thats not hot, only warm.
how to get to them http://www.grandprixforums.net/threa...or-Replacement
01-04-2016
Hope its not the thermostat, its a total pain to get to and is no fun to replace. i did the dex-cool flush and replace at 100k and did the thermostat as preventive maintenance.
01-05-2016
Well I'm fixing to do the flush in the morning I'll let yall know how the rookie did
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