another no heat ran out of ideas
#1
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another no heat ran out of ideas
i have a 88 iroc z was a 5.7 tpi now has 79 350 out of a truck when i 1st got it heat worked but not good cause it had no thermo and no temp switch for the fans got cold outside and no heat at all but that normal cause it was runnin cold so got new thermo and temp switch and its runnin around 210 still no heat so i took the valve out heater hose still none tried to flush heater core blew a hole in it and replaced it still no heat but it does have good heat goin around a 100 on the interstate preciate any help
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This Global Warming Thing Just Isn’t Working
Make sure the coolant level is up.
Make sure your blend door is swinging all the way.
Make sure the heater hoses are not reversed.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going Backwards
When you see fog lights on in good weather beware. Low performance driver ahead.
How bout those nitwits too scared to drive without headlights in the daytime, and the nitwits that need headlights for a little rain
.
.
Make sure your blend door is swinging all the way.
Make sure the heater hoses are not reversed.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going Backwards
When you see fog lights on in good weather beware. Low performance driver ahead.
How bout those nitwits too scared to drive without headlights in the daytime, and the nitwits that need headlights for a little rain
.
.
#3
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Car: 88 iroc/87 k10 pickup
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Re: This Global Warming Thing Just Isn’t Working
all that is good thinking maybe not enough circulation due to worn out water pump or low system pressure guess im going to see if core gets hot also the only place anything comes out is defrost vents idk if that could be the problem
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Re: another no heat ran out of ideas
hmmmm weird one. is ur heater valve coming off ur heater core and radiator in good condition? vaccum lines may be broken or loose, thats the problem ive had.
#5
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Re: another no heat ran out of ideas
yea it is a wierd one and im not sure what valve your talkin bout but if u mean the heater bypass valve i took it off cause my motor dosnt have ac compressor but i left the vaccume line open didnt see what it hurt
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Re: another no heat ran out of ideas
#7
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Re: another no heat ran out of ideas
sounds like u might need a new heater bypass valve. also it needs a vacuum source to operate correctly.
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#8
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#9
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Re: another no heat ran out of ideas
replace the heater core and put back in the heater control valve. then u will have heat.
make sure the vacuum source is hooked up also.
make sure the vacuum source is hooked up also.
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Re: another no heat ran out of ideas
You are correct all the valve does is prevents water from warming up your AC. Now i dont recall if removing vacuum to the valve opens or closes the valve so something to consider anyways. I would just remove it all together as they have a tendency to bind up so even though it should be open it may not be. Ive also seen TPI coolant passages in the throttle body get plugged up something to check.
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Re: another no heat ran out of ideas
You are correct all the valve does is prevents water from warming up your AC. Now i dont recall if removing vacuum to the valve opens or closes the valve so something to consider anyways. I would just remove it all together as they have a tendency to bind up so even though it should be open it may not be. Ive also seen TPI coolant passages in the throttle body get plugged up something to check.
#12
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Re: another no heat ran out of ideas
where did you route your heater hoses to? with only the heater core you should run one from top of water pump to the heater core, and 1 from the front water passage of intake to the heater core....
#13
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Re: another no heat ran out of ideas
are u sure cause then u would have a open hole in the radiator and ive never seen anything ran like that
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Re: another no heat ran out of ideas
you cap it..it is only used as the return to radiator.. when using a bypass valve...
you could run from front of intake to heater core to radiator.....
or cylinder head to heater core to radiator .....
i prefer to use the intake manifold to heater core to water pump top because it looks cleaner.... especially if you get a hose with a formed 90 for the intake side of things...
my car is carbed so i dont have a bunch of junk in the way either
you could run from front of intake to heater core to radiator.....
or cylinder head to heater core to radiator .....
i prefer to use the intake manifold to heater core to water pump top because it looks cleaner.... especially if you get a hose with a formed 90 for the intake side of things...
my car is carbed so i dont have a bunch of junk in the way either
#15
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Car: 88 iroc/87 k10 pickup
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Transmission: 700r4/700r4
Axle/Gears: 3.42/3.42
Re: another no heat ran out of ideas
you cap it..it is only used as the return to radiator.. when using a bypass valve...
you could run from front of intake to heater core to radiator.....
or cylinder head to heater core to radiator .....
i prefer to use the intake manifold to heater core to water pump top because it looks cleaner.... especially if you get a hose with a formed 90 for the intake side of things...
my car is carbed so i dont have a bunch of junk in the way either
you could run from front of intake to heater core to radiator.....
or cylinder head to heater core to radiator .....
i prefer to use the intake manifold to heater core to water pump top because it looks cleaner.... especially if you get a hose with a formed 90 for the intake side of things...
my car is carbed so i dont have a bunch of junk in the way either
#16
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Re: another no heat ran out of ideas
because you are trying to suck water out of the top of the radiator which often allows air into the heater core.....
trust me i went from my suggested method to this and it didnt work
i went from having an awesome cook you out heater, to a garbage sometimes its hot sometimes its not heater.. i have since switched back and now have good solid heat in the car
if you are going to use that heater hose port on the radiator, it needs to be the return from the heater core, it CANNOT be the feed.
trust me i went from my suggested method to this and it didnt work
i went from having an awesome cook you out heater, to a garbage sometimes its hot sometimes its not heater.. i have since switched back and now have good solid heat in the car
if you are going to use that heater hose port on the radiator, it needs to be the return from the heater core, it CANNOT be the feed.
#17
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Re: another no heat ran out of ideas
Cause both the radiator port, and the water pump port, are returns. You'll never get heat that way. Use one or the other of those ports, and run the other hose to your intake. It doesn't matter if you tap into the coolant passage at the front or the intake or the back, but you need to tap into the intake.
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Re: another no heat ran out of ideas
Cause both the radiator port, and the water pump port, are returns. You'll never get heat that way. Use one or the other of those ports, and run the other hose to your intake. It doesn't matter if you tap into the coolant passage at the front or the intake or the back, but you need to tap into the intake.
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Re: another no heat ran out of ideas
are you getting air out of vents, defrost , and floor seperatly when you use the controls
#21
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#23
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