over heating 94 caddy deville concours

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over heating 94 caddy deville concours

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Cadillac >> Cadillac Models >> Cadillac Deville >> over heating 94 caddy deville concours

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over heating 94 caddy deville concours - 4/3/2007 10:35:14 AM

extra_strength

Posts: 8
Joined: 4/2/2007
Status: offline

Caddy is overheating.
Symptoms

not leaking any water, but the water is disappearing!
I can hear the water pump pumping.
the fan will not kick in. meaning water is not getting to the fan sensor to activate the fan.

Post #: 1

RE: over heating 94 caddy deville concours - 4/3/2007 10:45:16 AM

extra_strength

Posts: 8
Joined: 4/2/2007
Status: offline

Caddy is overheating.
Symptoms below

1. the car is not leaking any water, but the water is disappearing!
2. I can hear the water pump pumping!.
3. the fan will not kick in. meaning water is not getting to the fan sensor to activate the fan.
ok caddy world! let me know what's up! so i can get my baby back on the road.

(in reply to extra_strength)

Post #: 2

RE: over heating 94 caddy deville concours - 4/3/2007 10:56:25 AM

Stealth

Posts: 3060
Joined: 2/18/2007
Status: offline

water disappearing? two things ..

1 - if you are using water, the gaskets, freeze plugs and/or headgaskets are probably
      gonne. you need to use a mix of 50/50 coolant/distilled water and supplement
      tablets and change it out every 24 months to maintain headgasket and engine
      protected from oxidation.
           (regardless of GM's 5 year maint cycle that we know fails too often)

2 - since you said the "liquid" is disappearing with NO signs of external leakage,
       most likely you have a compromised headgasket.   you can check for water
       in oil, white exhaust smoke, do a pressure test or use the kit below to verify.
           (probably other ways also, but these are fairly simple)

3 - the sensor thing i am not understanding

please get back to us and report.

quote:

ORIGINAL: Stealth

this product will answer the head gasket question if you still cant fine the source of the loss of coolant.
looking at the posts and the codes you reported overheating, if te overheating is serious, the car may
have warped heads and therefore a compromised headgasket .... may .. somwthing to keep in mind...

even if you have a leak, i am not sure you would see white smoke unless the leak gets
into the exhaust system. it could go into the crankcase and simply evaporate with driving,
or it could drip outside.

at any case, this should give you a yes/no answer IF the question remains.
the normal procedure is the pressure test, but this stuff you can probably do yourself.

best of luck

Block Test Kit

You can see it locate combustion leaks
without guess work! Tests in seconds for:

Cracked Blocks

Leaky Gaskets

Cracked Heads

Warped Heads
When fluid turns from BLUE to YELLOW, a combustion leak is present
http://www.rxauto.com/order.htm

Thumbnail Image

quote:

ORIGINAL: extra_strength

Caddy is overheating.
Symptoms

not leaking any water, but the water is disappearing!
I can hear the water pump pumping.
the fan will not kick in. meaning water is not getting to the fan sensor to activate the fan.

(in reply to extra_strength)

Post #: 3

RE: over heating 94 caddy deville concours - 4/3/2007 12:36:37 PM

Katzmans Caddy

Posts: 1314
Joined: 12/3/2006
Status: offline

Stealth is for sure on the right track. I want to suggest that you ensure that the thermostat is functioning properly since it seems you ar not circulating coolant through the engine. Does your heater work? I mean does it blow hot air? Once you top up the coolant how long until it is low again?

(in reply to Stealth)

Post #: 4

RE: over heating 94 caddy deville concours - 4/3/2007 12:42:57 PM

92_Daddylac

Posts: 75
Joined: 11/28/2006
Status: offline

if you say that the coolant isnt getting to the sensor to kick the fan on try to take that fan out and test it to see if it does actually work the fan may be bad if not then may be theres an bad fuse. also check oil to see if there is water in it.

(in reply to Stealth)

Post #: 5

RE: over heating 94 caddy deville concours - 4/11/2007 10:32:42 PM

extra_strength

Posts: 8
Joined: 4/2/2007
Status: offline

thanks........
i just got a new water pump and thermostat install today, and it still running hot! i really hope that it's not a warp or cracked head.

(in reply to 92_Daddylac)

Post #: 6

RE: over heating 94 caddy deville concours - 4/11/2007 10:34:02 PM

extra_strength

Posts: 8
Joined: 4/2/2007
Status: offline

thanks!
Sorry that it took so long.
i got a new water pump, and thermostat install today. Car still running hot!

(in reply to 92_Daddylac)

Post #: 7

RE: over heating 94 caddy deville concours - 4/12/2007 12:20:13 AM

Stealth

Posts: 3060
Joined: 2/18/2007
Status: offline

overheating causes ...

-low collant,
- bottom rad hose not OEM,
- water pump impeller backwards,
- belts slipping,
- clutch slipping,
- A/C compressor overloading,
- exhaust manifold leak,
- timing off,
- plugged cat,
- plugged rad,
- thermostat backwards,
- 1,000+ Fº exhaust leak boling the coolant,
http://www.cadillacforum.com/m_7193/tm.htm

quote:

ORIGINAL: extra_strength

thanks!
Sorry that it took so long.
i got a new water pump, and thermostat install today. Car still running hot!

< Message edited by Stealth -- 4/12/2007 12:21:42 AM >

(in reply to extra_strength)

Post #: 8

RE: over heating 94 caddy deville concours - 4/23/2007 3:34:11 PM

extra_strength

Posts: 8
Joined: 4/2/2007
Status: offline

i would like to thank everyone on the advise. I replaced the water pump and the thermstat. then i had the engine pressured tested, all is good now. the car runs like a champ now!

(in reply to Stealth)

Post #: 9

RE: over heating 94 caddy deville concours - 4/23/2007 6:02:24 PM

G.A.R.Y.