Question about 2000 Mercury Cougar

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I have a 1999 Mercury Cougar that has a brand new battery, brand new alternator and is still having a problem starting. It's harder to turn over the longer I drive it and the more starts I make. I have to push down on the gas pedal just to get it to turn over. This car has been in and out of the shop so much in the last year, I lost count. Please help me! I am in the market to get another car but I need at least a month or two and I and my mother are both tired of pouring money into the Cougar!! Is there an temp fix that could just keep me on the road until I can get another car?

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Look at your receipts and see if you paid for a Throttle Position Sensor. This part is held on by only 2 screws and has 1 Electric plug on it. It is located on a part they call an Airhorn which is where all the plastic ductwork comes from the Air Filter.

Go to Autozone or Oreillys Auto parts where they will scan your vehicle for free. This scan may indicate the problem on your car. Compare that scan with your old receipts and see if a bad part was installed on your vehicle. You may have a Warranty on the parts you already installed.

The part I recommend usually costs between $20 and $30 dollars There is only slight skill needed to line up a groove on the part with a slotted edge on the mating surface of your car. The job of the TPS is to act like a throttle and set the fuel and timing to match. It takes the place of a carburetor and does a little more.

When you ask for the scan ask if they will also check the Starter and charging system.

Posted on Sep 11, 2010

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Posted on Jan 02, 2017


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I've had similar problems with mine. Try checking the cables that run between your battery and your alternator to make sure you're getting enough feed between the two. If those are ok, have your alternator checked. I've had mine replaced 5 times since I bought the car new in 1999 and the car apparently doesn't act like most other vehicles when it's going out. If the test comes back ok, test it again. I recommend having the alternator tested at least 3 times before deciding that's not the issue. Also, I know it's a simple thing but clean your connector posts on the top of your battery to make sure you're getting a good connection. Figuring out that was the problem sometimes has saved alot of hours under the hood. Good luck!!

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To remove the alternator, you have to remove the serpentine belt. They have a tensioner in which you place a socket wrench and pull on it and it loosens the belt. Before removing the belt notice how it is routed. Some vehicles have a diagram on the hood or on the front near the grill.You take the belt off. Then you remove the alternator by removing the bolts attaching the alternator to the engine. There are two or three bolts you have to remove. Two of them are fairly big bolts. About a size 14 metric or so. Disconnect the negative battery cable battery so you won't hit any grounds.Then take off the plugs from the alternator and the small nuts that hold the wires. Notice how they are placed before removing so you can know where each plug goes.Then replace the new alternator. Plug it back up and install the same way you took it out.Replace the belt starting from the left to right and pull on the tensioner and reinstall.

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