i was waiting in line at burger king for about 7-8 min when my heater began to blow cold air. i thought the ac was on for a minute. i switch it to vent and it still was blowing cold air. the blower motor was on high and it still worked on all speeds. when i got back on the road to about 35 the heat kicked back in. could this be a sticking thermostate. i have a 160 thermo and chip. and allot of other mods. it was about 30 degrees here in ohio today. my car does get warm in the winter after driving a mile or so. my car never gets above 180 degrees on my auto xray scanner. any ideas what happened?

 

i had this problem with my car it turned out to be the intake gaskets.Check your radiator level.if its low look for the leak,if u dont see any check your dipstick(its looks like chocalet milk,literally).
dave

 

Check the coolant level and if you have a TPI or TBI engine check (aaaaa screw it) just change your heater control valve. It's gonna go eventually. Hope this helps!

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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

91 Firebird 5.0L TBI

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

 

yea, i saw in a magazine the most common problems w/heaters , when they stop blowing air is the control.. replace it for like 20 bucks if i rememebr right (read this in CHP)

 

What the hell is "chocalet milk" ? ROFL!

 

sounds like either you were low on coolant, or the heater bypass valve closed for a bit becuase you were idling and it didnt have enough vac to hold it open, this could be caused by a vac leak or a bad bypass valve..

 

I have the same problem. I posted this a little while ago. www.thirdgen.org/messgboard/Forum7/HTML/003345.html


HOpe this helps