hey my buddy has a 98 grand am and his heats been f*in up. He took it to a mechanic they said the anitfreeze was leaking and he needed a new heater core. Well we replaced the heater core, still no heat, so we though it was the thermostat, replaced that still no heat…
anyone have any advice besides blowing up the car or selling it. he needs it for another 6 more months till he saves up for a new car… Thanks
Did you bleed the system?
ya twice, once when we did the heater core, and once when he did the thermostat…
rad hose collapsing?
is the water pump working? check to see if water is circulating
x2 on the water pump. I heard from a few that its a common problem and not an easy fix.
Is the car itself heating up to operating temperature? Is it still leaking coolant anywhere?
The water pump on a 3100 is pretty easy to do. Right on the front left of the motor and easy to get to.
its a 2.4, the water pump is on the back side of the engine and the thermostat is underneath it on thtis model. no leaks and the hoses are fine. He is throwing codes so I told him to go to advanced and find out which ones hes throwing… i didnt think about the water pump not circulating…
The local Advance for me will scan sometimes, but not all the time. Autozone is a better bet.
you need alot of help scoring goals!
dont whore my thread bitch and i dont need any help scoring on you swiss cheese!!
oh no’s the dreaded 2.4 water pump. i think that pays like 6.5 hours or something at a shop. little bit of a pain in the ass. any who
the main thing is is the car over heating? if its running at normal temp then i doubt its the water pump. my heater core was clogged on my grand am. but you replaced it so that wont be a problem. i also remember having a really really hard time bleeding the air out of the heater core. i blew compressed air thru the heater core to get rid of the clog then i couldnt get heater core to bleed the rest of the system was fine i never over heated but i had trouble getting it thru the heater core. check the line coming OUT of the heater core and see if its flowing coolant. (obvious question but is the fan working for the blower motor)
fans working and not over heating…
check to make sure that the coolant is making it thru the heater core. i would guess just pull off the hose on the return part of the heater core and start the car up. if it comes out i would imagine that its good to go. does the 2.4 have the schrader valve above the water pump to let out extra air like my 3.4 does?
im not sure
don’t think there is a schrader valve on those. the water pump makes hellacious noise when they go. it sounds like a bottom end noise when they go. it is a pain to change did one before not really looking into doing another lol
maybe its the heater control valve?
aka the flapper that tells it to blow hot or cold air? are then run under vacuum? i had to manually wire up my old f-150 winter all heat summer no heat.