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1990 Dodge Spirit
It seems there are alot of cars with this problem. I've changed the
thermostat, checked gages, etc, but to no avail. The temp needle goes eratic, there is tons of antifreeze in the car, but one other thing about this problem and I know it's all linked in the heater/cooling system. The engine never heats up enough to get warm. The heater blows out mediocre warm air if the temp isn't too cold, but if it's really cold outside the heater doesn't work. Tried getting to the heater core and replacing that but couldn't get to the damn thing, we tore that dashboard apart, we finally blew out the core like they would a radiator, but the heater still doesn't work and as soon as it gets hot outside the car says it's overheating. Any suggestions? |
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#2
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1990 Dodge Spirit
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#3
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1990 Dodge Spirit
> wrote in message oups.com... > It seems there are alot of cars with this problem. I've changed the > thermostat, checked gages, etc, but to no avail. The temp needle goes > eratic, there is tons of antifreeze in the car, but one other thing > about this problem and I know it's all linked in the heater/cooling > system. The engine never heats up enough to get warm. The heater > blows out mediocre warm air if the temp isn't too cold, but if it's > really cold outside the heater doesn't work. Tried getting to the > heater core and replacing that but couldn't get to the damn thing, we > tore that dashboard apart, we finally blew out the core like they would > a radiator, but the heater still doesn't work and as soon as it gets > hot outside the car says it's overheating. Any suggestions? > this may not make any sense to you but your heater core is stopped up causing both problems and to verify this would be to remove the heater hoses from the heater core and connect them together bypassing the core. If the core is stopped up it will not allow the coolant to flow correctly thru the head. Thus causing the fluctuation with the gauge. -- Glenn Beasley Chrysler Tech |
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1990 Dodge Spirit
maxpower wrote: > > wrote in message > oups.com... > > It seems there are alot of cars with this problem. I've changed the > > thermostat, checked gages, etc, but to no avail. The temp needle goes > > eratic, there is tons of antifreeze in the car, but one other thing > > about this problem and I know it's all linked in the heater/cooling > > system. The engine never heats up enough to get warm. The heater > > blows out mediocre warm air if the temp isn't too cold, but if it's > > really cold outside the heater doesn't work. Tried getting to the > > heater core and replacing that but couldn't get to the damn thing, we > > tore that dashboard apart, we finally blew out the core like they would > > a radiator, but the heater still doesn't work and as soon as it gets > > hot outside the car says it's overheating. Any suggestions? > > > this may not make any sense to you but your heater core is stopped up > causing both problems and to verify this would be to remove the heater hoses > from the heater core and connect them together bypassing the core. If the > core is stopped up it will not allow the coolant to flow correctly thru the > head. > Thus causing the fluctuation with the gauge. > > -- > Glenn Beasley > Chrysler Tech Glenn, if this is the case, would moving the tempurature slider all the way to the *cold* position act the same as bypassing the heater core? Also, if I remember correctly, isn't there some kind of check valve on the heater core hoses that prevents the coolant from flowing the wrong direction? If so, do these sometimes fail, causing the lines to be obstructed? -KM |
#5
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1990 Dodge Spirit
-- > wrote in message oups.com... > > maxpower wrote: > > > wrote in message > > oups.com... > > > It seems there are alot of cars with this problem. I've changed the > > > thermostat, checked gages, etc, but to no avail. The temp needle goes > > > eratic, there is tons of antifreeze in the car, but one other thing > > > about this problem and I know it's all linked in the heater/cooling > > > system. The engine never heats up enough to get warm. The heater > > > blows out mediocre warm air if the temp isn't too cold, but if it's > > > really cold outside the heater doesn't work. Tried getting to the > > > heater core and replacing that but couldn't get to the damn thing, we > > > tore that dashboard apart, we finally blew out the core like they would > > > a radiator, but the heater still doesn't work and as soon as it gets > > > hot outside the car says it's overheating. Any suggestions? > > > > > this may not make any sense to you but your heater core is stopped up > > causing both problems and to verify this would be to remove the heater hoses > > from the heater core and connect them together bypassing the core. If the > > core is stopped up it will not allow the coolant to flow correctly thru the > > head. > > Thus causing the fluctuation with the gauge. > > > > -- > > Glenn Beasley > > Chrysler Tech > > Glenn, if this is the case, would moving the tempurature slider all the > way to the *cold* position act the same as bypassing the heater core? > Also, if I remember correctly, isn't there some kind of check valve on > the heater core hoses that prevents the coolant from flowing the wrong > direction? If so, do these sometimes fail, causing the lines to be > obstructed? > > -KM > No the slider will not by pass the heater core and no there is no check valve. You may be thinking of a water control valve. As I said, connect the hoses together to see if the problem with the overheating goes away. Glenn Beasley Chrysler Tech |
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