QuestionI have a 1994 Dodge Intrepid that was blowing really cold air one minute than hot air the next. I also noticed the passenger side floor soaked a few weeks ago. Do you think they have anything to do with each other? What could be wrong with the a/c?
AnswerDonna,
I don't believe that the two incidents are related.
The soaked floor is a relatively easy fix. Underneath your blower motor/evaporator housing on the passenger side of the A/C there is a drain tube. This tube is routed out the floor board of your passenger side. The purpose for this is to drain any water that gets attracted to your evaporator in the form of humidity out of the vehicle. This is why you will see puddles of water under cars that are sitting still with their A/C on. I believe that your tube has slipped offof the evaporator housing itself. All you will need to do is locate it and push it back onto the "nipple" that is on the housing.
As for it blowing cold and suddenly switching to hot. There are many reasons that could cause this. The first of which are your fuses. You have two fuses that feed your A/C wiring. The first one that I want you to check is the 20A fuse in the underhood fuse box. The second fuse is in your passenger compartment fuse block. It is a 10A fuse. In the F18 slot according to the wiring diagram that I am looking at.
If both of these are good... Locate your compressor clutch relay in the underhood fuse box. Once you locate this... Turn your key to the run position (engine off) and the A/C switch on. Unplug the relay from the socket. Look at the relay there should be a diagram on the side of it, or next to each of the connectors, there will be individual identifiers for each contact of the relay.
With a small insulated wire jump the terminals in the socket that the relay connectors "D" and "B" would connect to. Did your clutch engage? It should have. Now with a voltmeter, check the socket connector that relay connector "A" would plug into. If you read 12 volts here, replace your relay.
If you do not read 12V here, then I highly recommend that you take it to a reputable shop to have them trouble shoot your problem. I won't take you any further for the simple fact that the next check I would make involves your power control module, and for me to try to explain how to do the different checks on this component over the internet is entirely too dificult. I would only confuse you and I both. That and it would involve more jumper wires. Should you misinterpret the instructions, or should I not clarify the instructions well enough, it would cause damage to it, and this is not a cheap component to replace. I hope you understand.
But From your description, I believe that you will find the underhood fuse to be the fault. If so, replace it and just keep in mind that something occured to make it blow. The issue may present itself again in the future.
I hope that I was of a little help at least. Thank you for your question and if I can do anything further now or in the future, please do not hesitate to ask. All of the instructions that I gave you above may sound technical but they are really very easy. There is no need to take it to a shop to do them.
If you found this response at all helpful, please remember to rate this answer. Thank you again and good luck in everything.
