Having problems with your 1997 Mercury Grand Marquis ?

Have been told the TPS is bad. NOw the car will

\015 Have been told the TPS is bad. NOw the car will not go over 25 is this the problem\015 Posted / edited by AnonymousUser on : 19-04-2021

Answers :

This can be the problem. The TPS is the part that replaces the Carburetor throttle. The TPS also regulates the spark and the timing advance.
\015\012This is a very easy part to replace. The part is on the drivers side of the engine behind the plastic ductwork from the airfilter. The TPS attaches to the metal hornshaped part. It has 2 screws and 1 electric connector.
\015\012The TPS is about the size of a Butane lighter.
\015\012If you go to Autozone or Oreillys they will scan you engine for free. They can verify your problem. After you fix your car you can return to Autozone and get your computer reset to remove the "Check Engine" light if it is on. Or you can remove a battery cable for 10 minutes and the warning will go away.
\015\012The TPS screws are on tight and you may need a pair of pliers to grip the screwdriver to turn it. But there is only a groove under the TPS to match up with a mating part on the Airhorn. Its about a 20 minute job to remove and replace. With Autozone or Oreillys scanning your car, you won't have to buy unneccessary parts.
Repair Help & Product Troubleshooting for 1997 Mercury Grand Marquis

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