I have a 93 caddy deville the heater blows cold on driver and warm on pass but it only blows warm when i am at idle and revving the engine but never warm on driver side i have checked coolant level it is fine ac works perfect and i am out of things to check one mechanic told me it is probably a door or something not opening please help
2007-01-04 04:48:49 · 6 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
the mechanic is most likeley right. there is a diverter door that switches air from the floor, defrost, panel. you problem most likley is the door is not opening to that side. some times it can be caused by a mouse that has gotten in there and brought material inside or the door is just not working properly. pull out the blower motor and reach down the duct. also it is relativly easy to find the linkage for the door that opens it. pull on it by hand and see if it is jammed or just simply needs lubrication. good luck
2007-01-04 04:55:00 · answer #1 · answered by mike m 2 · 0⤊ 0⤋
Sounds like your mechanic is right. That would be the only thought i'd have on it.
Your coolant levels would effect the production of heat all together, not just on one side of the car. That implies a vent door some where in the hosing between intake and car.
It might be worth it to check the thermostat... I cant imagine that being the issue... but with it only blowing heat (iam assuming you mean all together) when reving the engine... it might be and underlying unrelated issue.
It could also be your fan belt slipping... but again, that would result in no air, and in most cases no power steering.
Iam going to stick with the mechanic.
2007-01-04 04:59:13 · answer #2 · answered by amosunknown 7 · 0⤊ 0⤋
That will be the hoses. Have a mechanic check all the hoses for holes etc, you can also get him to modify the hoses so you can funnel some of the heat from the motor to go to the drivers side. Maybe you lost one of its arms and its is blowing out or is now simply absent.
2007-01-04 05:00:12 · answer #3 · answered by QuiteNewHere 7 · 0⤊ 0⤋
The problem is probably in the door controlls. Most of those are controlled by vacuum and you probably have a line that either came off or is broken. check under the dash to se if you can find it.
2007-01-04 04:52:59 · answer #4 · answered by huntnyou 4 · 0⤊ 0⤋
Yikes. I had this happen to an old car, right before the engine seized. My thermostat was broken and I didn't know the engine was overheating on my short commute to school. I hope that's not what's causing your problem. Good luck!
2007-01-04 04:53:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋
If the heater blows cold air, why not use the air conditioner?
2007-01-04 05:18:17 · answer #6 · answered by Phil Ehrens 2 · 0⤊ 1⤋