heater problem

MUDWHISTLE

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my 92' is not making much heat the hoses are hot like the hot water is circulating but doesn't seem to be getting hot if its 50 deg outside the heat coming out is luke warm. usually at this ambient it is really hot. the engine temp is good the coolant level is good and I took the glove box out and the cable is moving for the hot right along with the hot/cold valve. any ideas? thanks.
 
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BIG JOE

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Plugged heater core

X2

I've had [some] success useing Air pressure to blow the scale'n crap out of the core, while it's still in the vehicle. AND.. reversing the hoses [sometimes] works

Not a bad idea to cycle the heater/temp, switch/lever even during the summer :dunno
 

MUDWHISTLE

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Yep thats what I was thinking too. just wondering if there was something I was missing. I think I'm just gonna put a new core in the heat didn't work that well last year and as far as I know it has never been changed. thanks buddies
 

towcat

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dumb question.....
have you pulled your blower motor and checked for vegetation in the ducts?
 

MUDWHISTLE

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No can't say that I have but it has really good air flow into the cab so it seems to be working . thanks Lee
 

MUDWHISTLE

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Ok so I got in to the core and was making sure that the door was closing off all the way for the cold hot mix and I BROKE the G#@$^&%#$@ lever off the door so Now I get to replace it too. anybody ever had to chage one of these? Looks like a real pita.
 

Clyde99

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Likely you will need to remove the heater box from under the dash. Once that is done, split the case to remove/replace the flap.
 

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