I posted here awhile back about having inherited my fathers Cadillac Eldorado with a 501 C.I. engine, and I'm still trying to get on top of the learning curve. Here is my latest dilemma: Looking at the engine heads there seems to be two temperature sensors screwed directly in to the heads. One is on the right-hand side all the way forward, the other is on the left-hand side all the way aft. There is a single black wire coming from the one up front and a green wire coming from the rearward one. They're not intersecting any oil or coolant passageways that I can see, so my conclusion is they are measuring the head temperatures directly. Did Cadillac actually make an engine system this sophisticated back then and if so how do I tell if it is working? Or am I even on the right page of music?
Cadillac 501 engine
Jul 15, 2005
19 Replies
One could be for the temperature gauge and the other for the hot light. Knowing what year the car was could help. Most call that engine the 500.
Al
"ironrod" wrote in news:2yXBe.735$5N3.662 @bgtnsc05-news.ops.worldnet.att.net:
You're not even on the right page of manufacturer. This is a Mustang group. F-O-R-D. Not even remotely related to C-A-D-I-L-L-A-C.
He is well aware of that. Before berating regular posters to this group, perhapse you should be here awile first and see who who does and doesn't know where they are. It should have been a clue when he mentioned how he had posted about said Cadillac 501 in this group before.
"WindsorFox[SS]" wrote in news:NC3Ce.56200 $iU.1153@lakeread05:
Ah, the lokal Netcop. Been wondering where you were lurking. BTW, I'm the spelling cop. You need a dictionary.
"Perhapse?" "awile?"
lokal??
Heh
Don Manning
"2.3Sleeper" wrote in news:PIiCe.549$zh7.501 @newssvr29.news.prodigy.net:
And you didn't figure out that was intentional?
news:PIiCe.549$zh7.501
Yes, but I could not resist.
Don Manning
There's a bible at the bay:
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-- Mike
93 Cobra
He'll probably say he did that to mimic my typos...
C'mon, if someone in the Mustang group can't look at that subject line and see it's OT, then really don't need to be driving. Besides that anyone that's been here more than 8 months would remember the last time you posted about it. And yeah, I've been to the Caddi group. Unfortunately (for you) all of the old Cadillacs we had are gone. I have been sniffing around in the garage and if I find the Cadillac shop manuals I had I'll let you know.
"ironrod" wrote in news:xenCe.433048$cg1.233306 @bgtnsc04-news.ops.worldnet.att.net:
Sorry, my post was mostly tongue-in-cheek. It sounds like some kind of primitive emissions control to me. I would trace those wires, and see if they lead to a box that also has vacuum hoses attached. Then again, it just may be an unusually complicated "hot" warning.
Great source of info for those old cars are the Motor's and/or Chilton's manuals. Most libraries will have them in the reference section.
You DO manage to attract all the new spazzes, don't you? Never fails.
Too funny.
:()
I did some primitive troubleshooting today, and found that they do indeed appear to be head temperature sensors with a separate warning light than the water temperature sensor, looks as if both sensors have to close (right & left heads) before the light/alarm goes off, it also seems that the signal is wired into the drivers side door switch so that it self tests whenever you open the door with the ignition on. (You can see why this drives me crazy.)
Wish I had caught that one earlier, probably just what I needed.
Don't sweat it. Here's another one on the bay in excellent shape, with seller feedback at 100%. If you plan on keeping the ole Caddy, then don't let this one slip away. Your call...HTH
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-- Mike
93 Cobra
And you get the groundhog. Life is JUST not fair....
What's not fair about that? You saying I don't deserve groundhogs?
dwight
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