Re: 1987 olds delta 88.
- From: "Comboverfish" <comboverfish@xxxxxxxxx>
- Date: 15 Sep 2005 18:26:37 -0700
Matt wrote:
> Hello, and thanks in advance for any advice provided.
>
> I have an olds 1987 delta 88. I can't find an engine code, it's a 3.8L,
> I count 6 spark plug wires, but all the parts stores tell me this model
> is only available in a V8. So, I have no idea what model or even really
> what size the motor is, other then it is definetly a 3.8L.
>
> The radiator fan seized, followed by severe overheating. It's possible
> that the head gaskets are blown now; but I'm willing to try the fan
> replacement first.
>
> I removed the fan assembly, and then disassembled the motor. Nary a bit
> of insulation on the windings, which I suppose would explain its
> failure to turn.
>
> I called O'reilly, and they quoted a price around $60, _including_ the
> shroud that the fan motor mounts in, as well as the fan blade. Seems a
> bit low to me, but hey....I'm not complaining. The mechanic we took it
> to first wanted $350 for one.
>
> My two questions:
>
> 1. There is also a resistor mounted on the shroud. Looks to me to be in
> bad shape (although I havn't measured its resistance yet) - does anyone
> know if this bit also comes with the new assy? (No big deal, just
> curious. I'm sure I can afford a new one).
>
> 2. I'm guessing there is a sensor somewhere that triggers the fan. I'm
> thinking I might just as well replace it while I'm at it -
> unfortunately I have no idea where it is on the block. Any tips on it's
> location?
>
> Thanks much!
> Matt
First off, you really need to know that your car is front wheel drive.
The engine is a 3.8 liter V-6. Armed with this basic knowledge, you
can tell the parts store flunkies that they are wrong when they tell
you your engine is a V-8.
I don't think there's a "resistor" in the fan circuit... I don't know
what the part is you are refering to, but if you post a pic of it that
will help the ID process. I believe that your car could possibly have
an optional second cooling fan. Is there another fan on either side of
the radiator besides the faulty one you removed? If there are multiple
fans, perhaps the one you removed *is* a low speed fan and *does*
incorporate a resistor. Just thinking out loud. Hell, I couldn't even
drive when these cars came out...
If this is the old non-ECM controlled fan system, there should be a
coolant temp switch threaded into the upper engine, probably near the
alternator. With the key on, you could ground that switch wire and the
fan relay near the left headlight / front left fender area should click
closed. You could test the hot wire to the fan with a test light to
see if it gets voltage when grounding the temp switch.
Keep in mind that if this fan seized while still drawing current (as
evidenced by the crispy windings), the fan relay and harnass could have
severely overheated from excess current. The fan fuse could have blown
as well.
Toyota MDT in MO
.
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