Q: Decreased Consistent Acceleration on freeway

asked by on

I bought my '94 Mercury Topaz V4 Automatic about a month ago. I pulled the codes and it had a P158 for the MAF sensor. I replaced the MAF sensor, air filter, PCV​, and fuel filter. I was on the freeway today and I noticed it was making this exaggerated revving sound after 60 mph. Then it slowly and consistently lost speed. I immediately got off the freeway in time to coast into the gas station as it cut off. Then when I tried to restart it, it won't turn over. Help!

My car has 466339 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Decreased Consistent Acceleration on freeway

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Transmission Jerks

Have the drive shaft joints and rear axle pinion bearing checked to see if they have excessive play. Also, check to see if you have any broken motor or transmission mounts. This should help narrow down the problem for you....

Q: Lights on dash suddenly started flashing while driving, accompanied by car surging & stalling

The vehicle may have a problem with the power relay in the central junction box that powers the ignition and computer on the car. The relays and connections to the junction box will need to be checked if the problem...

Q: my heat gauge goes up when idling then comes back down when driving

It sounds as though you are probably having an issue with the cooling fan(s). The primary function for the cooling fan(s) is to push/pull air through the radiator at low speeds, or at a stand still. When stationary, there is...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...