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I've read your earlier post Posted by Saana88 [Email]  (#207)  [Profile/Gallery]
(more from Saana88) on Wed, 3 May 2006 16:40:20
In Reply to: need to clarify an earlier post, john88, Wed, 3 May 2006 15:29:57 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Here's the best that I can do:
If the fan runs with the switch in position O, it's shorted somehow. This is most likely at or around the fan switch, but in rare cases the fan resistor can short out. (Make sure there isn't a puddle of water in the air intake.) You can check the electrical portion of the distribution switch by removing the radio and its cage and going to town with an ohmmeter. Check your fuses. If the recirculation fuse blows, the switch won't light up (brighter green or at all) when it is depressed.
If the fan works properly, you've got at least one vacuum leak.
Now that it's working, open the hood and start the motor and observe the flap. It should be closed in the all-off and full-blast positions, and any other positions only if the switch is depressed.
If it goes partway closed and then opens up again, or (worse) doesn't budge at all, you've got a vacuum leak somewhere.
Pull the vacuum line to the recirculation flap and servo off underneath the AC evaporator (or the flat panel if you're like me and the AC is gone). Grab onto the linkage connecting the servo to the flap and close it, holding it there. Then reliably plug the vacuum line. Hold it for a minute or so. If the flap opens back up, there is a leak out there, either in the line or in the servo. Remove the vacuum line from the servo and repeat that, plugging the end of the servo. If the flap opens up now, you know you've got a leak in the servo. My convertible did, and I replaced the servo with a junkyard part. If not, there's a leak in that vacuum line. Replace it. Replace it anyway if it's been a few years. Reconnect the vacuum line to the firewall fitting and the servo.
Next it is easiest to check the other vacuum line at that firewall fitting. If that does not hold vacuum, then replace it. Replace it anyway if it's been a while.
Part two will follow if you indeed have vacuum leaks, but for now I'll leave it at that.
, Wed, 3 May 2006 16:40:20 <-- Viewing This Message
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