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its very simple man its located under the dash in a black box. its right under the controls where the ac is. make sure u take the positive battery cable off before working on it. the hardest part is finding it once u do is easy from there. just take out the other and put the new one in. it is recommended that u should flush out your system but its not really nessacary.
What else can I help you with?
What is the cost to replace a ball joint on a 1991 cutlass supreme?
price on replaceing ball joint 1993 cutlass supreme
How do you remove the starter from 1991 cutlass supreme?
transmission
1991 Cutlass supreme is blowing cold air when the heater is on please help?
Could be, low on coolant, stuck open thermostat, plugged heater core, temp blend door malfunction,
What type of tool do you need to reach spark plugs on back side of engine 3.1 94 olds cutlass supreme?
I have a 1991 Cutlass Supreme and I had to use a flex ratchet to replace the back 3 plugs. Other than that I was told by a mechanic friend that the motor has to come out to do this.
Where do you put the coolant in the Oldsmobile cutlass supreme 1991?
You have to put it in the overflow tank.
What is causing your 1991 Oldsmobile Cutlass Supreme to overheat when you drive and make the steering wheel really hard to turn?
The serpentine belt is broke or loose. Replace the belt
How do you do a tune up on a 1991 Oldsmobile cutlass supreme?
With money take it to someone who knows.
Where is the crankshaft position sensor on a 1991 Olds Cutlass?
Nee more info cutlass supreme or cutlass ceira which engine 3.1-- 3.8-- 3.3-- ????? Oldsmobile cutlass ceira 3.3 liteer engine
How do you repair the timing on a 1991 Oldsmobile Cutlass Supreme 3.1 liter V6?
You can't, its done by the computer if you have a knock noise, replace the knock sensor. its locate on the back of the engine near the alternator.
How do you replace heater core in a 91 Chevy truck?
replace heater core in a 1991 Chevy work truck 1500
Where is the crank sensor in a 1991 Cutlass Supreme?
Behind the harmonic balancer (dampner) that is located behind the crankshaft pulley.
What are some things to check when 1991 Oldsmobile Cutlass Supreme won't start?
The most obvious thing to check when a 1991 Oldsmobile Cutlass Supreme won't start is to make sure that the vehicle has gas. You should also check the battery. If the car clicks when you try to start it, it is likely the alternator.
