Question about 1998 Cadillac DeVille

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I am getting water under the driver side dash board and it seems to be coming from the A/C outlet. I have a 1998 cadillac de ville concource. Could it be that a tubing is missing for the water to exxape and where is it located. steve

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The drain at the firewall or under the car, may be clogged with dirt or debris.

Posted on Sep 20, 2010


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Would you buy a 1998 Cadillac De Ville with 115,000 miles what would you pay

I bought a 1997 Cadillac Deville Limo for $2800 on Ebay as a first contact.

I would pay about that much for a 1997 Cadillac Deville with 115,000 mi. on it which is similar.

Aug 21, 2010 | 1998 Cadillac DeVille

1 Answer

Air and heat will only come out defroster on 2001 Cadillac De Ville

There is an actuator motor that controls this,and it is most likely not working,the actuator motor needs to be replaced,and the dash has to be removed to access the motor.

Jul 15, 2010 | 2001 Cadillac Seville

1 Answer

Need to locate thermostat in 99 Cadillac De ville 4.6L

it's in the thermostat housing that is close to a belt driven water pump on the driver's side. Thermostat is hidden inside this housing.

Jun 25, 2010 | 1999 Cadillac DeVille

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What is the correct temp on a 1998 Cadillac de ville my cadillac is not should me the correct temp in my gate and is overheating.

The normal coolant temp should be around 200-215 degrees.
The cooling fans will come on at around 225-228 degrees.

The most common overheating problem with the Northstar engine is a blocked purge line(small hose).The purge line is designed to purge air out of the cooling system.
There is a small diameter hose coming from near the top of the coolant tank (not the cap) ,this is the purge line.
With the engine idling,pull the purge line from the tank,if there is no coolant flow from this small hose,it is blocked and this will cause overheating.
If the hose is clear, check for blockage at the nipple on the tank.Or trace the hose back until you find the blockage.
The hose goes in to the engine to a crossover and comes out the other side close to the thermostat housing,the blockage may be there.

May 12, 2010 | 1998 Cadillac DeVille

2 Answers

What octane fuel used in 98 Cadillac 4.6

having over 30 years with general motors and 10 with cadillac the standard 87 octane can be used in your northstar engine
premium is noted on the dash cluster to the owner of course for the price they paid for a 300 horsepowered engine seems they octane should be using the highest made octane to use. it is another bad reflection from general motors in their part. I owned a 96 de ville and always ran 87 octane and took it out west in 98. I cruised at 90 mph through Nevada and received 29 mpg

Mar 03, 2010 | 1998 Cadillac DeVille

1 Answer

I need a picture/or diagram of the serpentine belt routing on a 1998 Cadillac 4.6l north star engine. Car is a De ville

I need a diagram of how to replace a serpentine belt on a 1998 Calilic 4.61 north star engine

Dec 22, 2009 | 1998 Cadillac DeVille

1 Answer

Trunk will not close all the way.

Go to the dealer and purchase a trunk pull down switch. Put it on and fix car.

Apr 23, 2009 | 1998 Cadillac DeVille

2 Answers

Turn signal flasher fuse location

it is normailly the big round thing in the fuse panel on the driver side under the dash by where your feet go

Dec 30, 2008 | 1997 Cadillac DeVille

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