Question about 1990 Mercury Sable

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My 1990 mercury sable hissis and steams after drivin for about 5 minutes somewhere where the rad hose goes into the engine could it be a bad fitting or is it more extreme like a head gasket or something?

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3 Answers

Steam rises from the radiator after car idles for 10 minutes. Replaced thermostat. No improvement. Could this be one of the radiator fans as I noted it does not turn on. The water guage remains wh


If the steam is rising from the radiator and not from the overflow tank or hose then you do have a leak.. in the radiator. check for a cracked tank or fitting where the hoses connect. If it is making steam the guage is probably defective. Find out where that steam is coming from ! If the car is making steam the rad fan should probably be running.. I do not know about your particular car but some times the secon fan only comes on with A/C use or extream heat.

May 10, 2014 | 1999 Mercury Sable

1 Answer

Why does heater blow cool air?


Old trick with any car ,firstly drain the antifreeze out then refit the bottom hose ,get a plastic bucket and add about a cupfull of caustic soda ,add hot water being usual carefull about this then when the caustic has disolved you add this to the radiator ,then providing the level is ok you refit the rad cap and run engine ,time ? depends say a half hour drive around town ,then let engine cool ,remove the bottom hose to drain being carefull as well whilst doing this .then remove the rad cap and flush it through
,then refit the bottom hose and remove a heater hose ,both it access allows then flush back through the heater hose ,both ways if you can both heater hoses off ,then refit one heater hose and let it back flush out through the rad cap then reverse this flow ,and if it all comes out nice and brown then clears you know your heater will work ,now drive car around with the water in for 5 mins then drain via bottom hose and then after fitting the bottom hose refill with antifreeze 50% min ,even in a frost free climate as the antifreeze is a anti corrosion agent as well .

Apr 12, 2014 | 1994 Mercury Sable

1 Answer

No heat how do I flush heater core out 99 mercury sable LS DOHC ?


Find where pipes are going into heater rad(usually near the bulk head) disconnect both, I usually use a spark plug to insert into hose so as not to loose water from engine block, use hose from house tap insert into heater rad and flush until clean.

Oct 18, 2013 | Cars & Trucks

2 Answers

2002 Mercury sable misfiring only on cylinder 3


Can't believe some the lame answers here. Anyone having this issue check the PCV hose where it attaches too the air intake, the rubber breaks down and develops a leak. But these engines also have wiring issues that causes crankshaft sensor to fail at startup or under 1000 rpms causing the computer to shoot a code and trigger the engine light. I have these issue cause the above problem.

Jul 07, 2012 | 2002 Mercury Sable

1 Answer

Our mercury sable 1993 keeps overheating


are the cooling fans running? is it loosing water from exhaust or in the oil check these things water is going somewhere

Jan 16, 2012 | 1999 Mercury Sable

1 Answer

My 2000 Mercury Sable is leaking anitfreeze and I am not sure where its leaking from. How can I find out?


open the hood,run the car with a piece of card over the rad (if poss)until its really hot then,with your sleeves rolled up and NO tie,look for a steam jet,if its hot enough, you wont miss it.unless it the heater matrix.but you would smell that inside the car with steamed up windows.(no ac)

Oct 26, 2010 | 2000 Mercury Sable

1 Answer

How do you repair a non working gas gauge? Mercury 1990 Sable


only 3 possiable causes

1. bad gauge

2. bad sending unit (bad news is in tank)

3. bad wiring (rare but happens)

Jun 03, 2010 | 1990 Mercury Sable

2 Answers

Where is the thermostat located on a 2004 Mercury Sable 3.oL DOHC


The thermostat is on the other side (passenger) at the bottom front of the engine, accessible from underneath. It has 2 10 mm bolts securing the housing and a hose run to it.

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Dec 30, 2009 | 2004 Mercury Sable

1 Answer

Where is the thermostat located on my 2000 sable


it is in the housing from the top rad hose to the intake manifold,remove the top hose,after draining the coolant,and the thermostat will be under the the peice it fastens to on the engine.

Jul 30, 2009 | 2000 Mercury Sable

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