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Re: Edu light, di and fans........long Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Thu, 18 May 2006 05:41:35
In Reply to: Edu light, di and fans........long, 92saaber, Wed, 17 May 2006 21:47:41 Members do not see ads below this line. - Help Keep This Site Online - Signup |
There are two bulbs that illuminate the EDU. See Quasi's page for access:
Main page: http://www.quasimotors.com/
Specifically:
http://www.quasimotors.com/instrument_cluster.htm
Access isn't much fun, but is quite doable. Bulbs are available at the dealer. However, if you're interested in real DIY (as it seems you are), you can 'make' the bulbs yourself. The EDU bulb is simply a wire lead bulb in a plastic carrier, much like a Christmas tree bulb. Go to Radio Shack and buy 12 volt, 60 ma wire lead bulbs (two to a pack, about $2). When you get the bulbs out (quarter turn), simply straighten the leads on the dead bulb and remove it from the carrier; stick the new one back in.
As to the DI, repair is a lost cause. If it is cracked, it is leaking oil, and that isn't replaceable. Find another DI. Something to be aware of - in '92, the DI still had the integral cable. Namely, the cable is attached to the DI, and plugs into a bulkhead connector near the throttle. The newer DI design had a connector right on the DI. If you buy a new DI, chances are it will be the newer design. Therefore, you need to buy the 'adapter cable', which goes from the bulkhead connector to the connector on the DI.
In '92 you have a two-speed fan. That means there is a resistor mounted right on the fan - it's the gold-colored rectangular metal thing. Those resistors do fail open - easy to check, simply measure the resistance. If it's more than a few ohms, it's dead.
The resistor is NOT optional. There is a Thermoswitch in the radiator, on the bottom right-hand side. It is possible that the thermoswitch died, or the relay it drives (the switch can't handle the current of the fan alone). So it will take a little troubleshooting with a meter. As stated, the resistor is NOT optional. The thermoswitch closes one set of contacts around 89C - that closes a relay and puts current through the resistor to the fan, and it starts spinning at the low speed. IF the temperature keeps climbing, the second set of contacts close (around 100C) and the resistor is bypassed. A common fault is for the resistor to die, and then the 30 amp fan fuse starts blowing. That's because it takes a LOT of current to get the fan going from a stop. When it is already spinning from the low speed, there is no current surge when going to high. But if the low speed is dead, the current surge of going from zero to high pops the fuse. It may also damage the relay. So get out your meter.
As to the A/C fan - yes, that sounds dead. A fan should be moveable with the fingers.
This doesn't sound too bad - it's a 15 year old car(most likely built in '91). A new DI and some electrical problems are par for the course with any vehicle old enough to be starting high school.
posted by 192.249....
, Thu, 18 May 2006 05:41:35 <-- Viewing This Message, Thu, 18 May 2006 09:01:14
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