You need to clean or change your heater core Also check your rad cap to be sure that it holds the pressure change it every 2 years minimum
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Related Questions
What year of a Cadillac Eldorado steering column will fit a 1989 Cadillac Eldorado?
Any steering column from a 1986-91 Eldorado would work - a comparable Seville's should work equally as well.
Can the digital dash board on a 1986 Cadillac Eldorado be repaired at home and how?
no it is exchanged through the dealer
What is the firing order for a 1986 Cadillac Eldorado?
in the trunk on the drivers side also under hood drivers side
Where is the starter located on a 1986 Cadillac?
The starter on a 1986 Cadi Eldorado is located under the car right to the left of the oil pan. Look for your flywheel, and you will find your starter.
Where is the transmission fluid drain plug on the 1986 Cadillac Eldorado?
Nope, no transmission drain plug. You have to drop the pan to drain the fluid and change the filter.
What is Oil capacity 1986 eldorado?
The oil capacity of the 1986 Eldorado is 5.5 quarts. The type of oil will depend on the mileage of the engine and the environment driven in.
Why won't my 1986 Cadillac Seville start?
Why my Cadillac 1986 wont start
When was Cadillac Desert created?
Cadillac Desert was created in 1986.
What was the 1986 air strike operation against libya?
Eldorado canyon
Why would the heater motor continue to run on a 1986 Cadillac deville when the car is off?
the fan has a high amp draw roasting the control module replace them both!!
Where is the heater core in a 1986 subburban?
It's in the heater core housing.
How much is a 1986 Cadillac Fleetwod worth?
5000
Can a 400 Cadillac engine fit in a 1986 Pontiac Ponnevile?
Cadillac never made a 400 engine
What would you do next on a 93 Eldorado when the turn signals are out and a replacement flasher just buzzes?
where is the turn signal flasher on a 1986 cadillac eldorado Rplace Turn signal flasher.Be careful cause ther is also a Flasher for the hazards,so make sure u say turn signal flasher and not flasher.These are two different plug type fuses.Around $8 to $15 bucks each
Where is the starter solenoid located on a 1986 Cadillac coupe deville?
The starter solenoid on a 1986 Cadillac Coupe Deville is located under the front of the vehicle. It is to the left of the oil pan.
Rear heater gmc van diagram?
can I buypass the rear heater valve and run two heater 1986 gmc van
How do you change a heater core on a 1986 Chevrolet truck?
Loosen the dash and pull out the complete heater box after you have disconnected the heater hose from the firewall...........
The heater doesn't turn on in my 1986 Jeep Cherokee any ideas?
check the fuse or the ground on the heater
Does any one have a 1986 Cadillac deville wiring schematic?
yes, I do
Can a 1986 Cadillac run without the fan for the air conditioner?
absolutely
Remove replace half axle 1986 Cadillac?
buy a Buick
Do you have a diagram of 1986 cadillac coupe deville distributor cap?
yes
What are the release dates for Talk2DIY Automotive - 1986 Tires and Changing Heater Core?
Talk2DIY Automotive - 1986 Tires and Changing Heater Core was released on: USA: 14 August 2004
1986 Toyota van blower heater relay switch?
you will find it in the heater box, also where the blower is. it is easy to remove.
How do you fix a 1986 Buick riviera heater core?
Not practical to try to fix a heater core. Replace it with a new one.
