what would cause???
- Thread starter MI95Cobra
- Start date
94-302-vert
Active Member
The defroster is causing it to die... don't use it... 
In all seriousness... I would try disconnecting the defroster from the window then see if it still happens... could be a shorted out defroster causing a high electrical load...
Is the fuse blowing?
In all seriousness... I would try disconnecting the defroster from the window then see if it still happens... could be a shorted out defroster causing a high electrical load...
Is the fuse blowing?
turning on your AC/defrost adds a value to increase IAC to allow more air through due to the demand of the increased load on the engine. Try cleaning the IAC or you may want in give your TB screw a baby turn forward to increase your base idle a tad.
Or if you had a chip id just add more value to the IAC when the ac comes on.
Or if you had a chip id just add more value to the IAC when the ac comes on.
You really need an oscilloscope to check it's function.
If you can view PIDs, you can get an idea of what is going on.
Otherwise, you might want to clean it. Here's a little article about doing it.
Good luck.
thanks hissin5.o....there was alot of carbon built up on the smaller one....i'll try it out when i go to work tonight....
ok...i was told to clean my mass air sensor also....so i cleaned it and noticed it was idling better and no surging.....when i was at a red light i turned on my ac and noticed my battery gauge dropped from half to about 1/4....is that normal??? or any ideas???
That's not normal. When you turn on the AC, do the RPMs kick up?
If your idle drops too low, your alternator cannot keep up (you not only lower the alternator's speed [ergo output] but with the cooling fan, compressor and HVAC fan, you introduce a lot of electrical load).
Before the WCCT, I had to artificially raise my mechanical idle setting to help with a similar issue.
Good luck.
If your idle drops too low, your alternator cannot keep up (you not only lower the alternator's speed [ergo output] but with the cooling fan, compressor and HVAC fan, you introduce a lot of electrical load).
Before the WCCT, I had to artificially raise my mechanical idle setting to help with a similar issue.
Good luck.
Quite possibility. Output voltage should be 14+v. If there is a local auto/marine electrical repair facility in your area they might best be able to help. They will have the ability to test and repair/rebuild the alternator as required. In my experience it's a better alternative than just replacing the unit
