Q: Decreased Consistent Acceleration on freeway
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
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
What others are asking
How do I check the tire pressure?
While checking the tire wear on your car is important, it’s equally as vital that you keep an eye on the tire pressure. While your vehicle is equipped with a tire pressure monitoring system (TPMS), it cannot replace physically checking...
Power steering out
Hello, since the fluid is full and you state the air conditioning is also failing, you should check the front of the engine and make sure that the drive belt is present. If the belt is present, I would say...
Leak in the front passenger side under the hood
You may have a coolant leak from the water pump seal due to a bearing being bad. This would account for the leak and noise you are getting. I would recommend not driving the vehicle until this is diagnosed and...
car not sounding and running properly
Most likely the loss of power after your oil change is just a coincidence. It is possible they checked your air filter and disconnected a sensor on accident. If this is the case, there should be a Check Engine Light...
Service engine light came on.
Hello, this code represents a slow acting thermostat getting to engine operating temperature which is about 195 degrees. The computer monitors the time to get to operating temperature, if it takes too long it will set this code. The...
Where is the canister purge selinoid located at?
The EVAP system is located in the rear of the vehicle near the fuel tank, which may be part of your problem in the event there is a leak in the EVAP system. Your car has a small purge valve...
Replacing fuel pump control unit
Hello, thank you for writing in. With the extent of the work you have done already, it leaves very few components left to consider. With that being said, take a few moments to verify that all of the repairs you...
Can a blown bulb cause a short in the circuit resulting in a drained battery overnight ? Mercedes Benz
Hello - no, I don't think it's possible for a light bulb to cause a dead battery unless it's left on overnight. Something else is going on here that's draining your battery. This problem can be diagnosed by connecting an...
My 1991 Chevy Silverado hesitates at times and stumbles at idle when taking off from a start
If your fuel pressure is low or you have sticking clogged injectors you may get the hesitation and stumble on acceleration but run good at cruise. Also if you have some carbon build up on the valves and throttle body...
Related articles
A Buyer’s Guide to the 2012 Mercedes-Benz SLS AMG
Powerful, Powerful, aggressive and streamlined, the 2012 Mercedes-Benz SLS AMG is a precision-crafted supercar. It was offered originally as a coupe, but this year saw the addition of a roadster body style. Key Features From the 7-speed dual clutch to...
Mercury Certified Pre-Owned (CPO) Car Program
Drivers Drivers who are shopping around for a used Mercury vehicle may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on to...
Understanding the Mercury Intelligent Oil Life Monitor and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Mercury Intelligent Oil Life Monitor indicates when and what service your car needs.
Browse other content
Estimates
Cities
Services