I have a 2003 ford windstar limited. About 2 weeks ago I noticed a clicking noise from under the dash. It is louder when the driver climate control is on cool and softer on heat. yesterday I completely lost heat to the cabin of the car. the engine does warm up. I haven't noticed fluid on my floor so I don't think it is the heater core. Please help as funds are tight to go to a repair shop.
Your blend door actuator is no good. i had the same exact problem and just finished replacing it today. the part costs about 60 bucks from ford. auto part stores had it cheaper but not in stock. have to remove the radio by taking a wire hanger and making a "U" shaped tool. Insert the ends of the "U" into the 4 holes on either side of the radio and push the bottom of the "U" toward the outsides, the radio should come out easy. remove the dash panel containing the a.c. / heater controls by removing the 2 screws on top (where the radio was) and the 2 screws by the pull/out cup holder-ashtray. pull gently its held in place by 2 clips.you will see the blend door actuator attached to the firewall.mine was white a little bigger than a pack of cigarettes. its held in place with 3 screws also one cable connector. kind of awkward to get to , you need an 7mm and 8mm sockets with extensions..
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It sounds like there is a issue with the temperature blend door motor that is located on the climate control box under the dash. Its a square flat motor assembly . white in color, sometimes black. When the noise is happening, place your hand on the motor and you can feel the motor making noise. This will also make sure you get the correct motor.
No if the oil light has flickered you have oil pressure loss some time just belive the sensor do help us out. lifter do not cause oil pressure loss pressure is built in the rotation of the crankshaft. The knock under the plenum will point you to that cylinder that is affected, (main bearing) as for a 1995 the injectors can only cause a misfire but no knocking noise,will they honor the warranty
The problem with the air distribution is due to loss of vacuum to the vacuum motors that control the air diversion doors in the AC/Heater duct work, The vacuum comes from the engine and then goes to a vacuum storage canister, check there first under the hood. The other issue of loss of cold air is most likely due to a sticking air temperature control blend door and or actuator. This requires the dash be removed to replace the parts.
This is not good. Relays and circuit interruptors work differently than fuses. Each will interrupt a connection and can reset, over and over, rythmically. It means something is stuck in an ON position. It also means a part is heating up and a part is trying to drain your Battery. (Make sure it is not the clock ticking)
First, if you have a quiet garage try opening your Drivers door and keep it open. There are 2 relays in the Drivers door because of the
extra AUTO down relay. You will be able to crouch down between the door and the seat of your car. You should be able to hear the clicks to eliminate the door as a problem.
Open the hood and go to the Black boxes. Is the clicking louder under the Hood? If it is, open the cover over the Black boxes and feel the tops of the relays to find the active one and remove it. Now what does not work is the grounded circuit.
If the noise is still louder in the interior, look under the dash for a Fuse panel. Feel the Fuses and Relays for vibration to match the clicking. Pull out the clicking part. What does not work is the bad circuit. Still no Luck? Find your Air Suspension cutoff switch. It may be behind a panel in the rear cargo area or under a Foot kickpanel under the dash. Turn it off. See if noise stops.
The clicking noise is most likly the starter solinoid cycling in and out. This is due to low battery voltage. charge the battery, then have the battery and charging system tested. Some auto supply stores will do this for free for you in the hopes of selling parts
The clicking noise you are hearing is the temp door actuator. It is located in the center of the dash. If you look behind the radio from the Passenger side of the van you will see a white square box with a black or green connector in it. Remove the connector and then remove screws that hold the actuator in place. Install a new actuator and reconnect the wire connector. This should take care of your problem and your heater will be fixed. I hope this was helpful.