Q: My 93 Ford Explorer hesitates when opening the throttle, it is very sluggish and acts like it has no power. Then all of a sudden i

asked by on

My 93 Ford Explorer sometimes doesn't want to respond when I get into the throttle. the thing is, when the RPM go to 1300 then slowly drop to normal when started the car will run fine. But if it doesn't it will act lethargic. I've replaced the TPS, and MAF.

You are correct to suspect the MAF with this sort of symptom. The MAF detects the the amount of air entering the motor. If there is a vacuum leak, or more common, if the air boot that connects the MAF to the throttle body has a crack in it creating an air leak, then the new MAF will give the same bad readings as the old one. So first thing to do before replacing a MAF is to make sure there aren’t any vacuum leaks. The TPS is unlikely to be the cause of your symptoms.

It is common for there to be a crack in the intake boot that only creates a vacuum leak when it gets torqued by the motor or other variables cause the crack to open. In other words, it can be an intermittent problem. The best thing to do is grab the intake boot and move it around to see if the motor reacts.

Beyond this, you will need a scanner that is capable of viewing the vehicle data. This data is valuable for a successful diagnosis of your Explorer.

If you should need further help with this, I recommend the following inspection; car is not getting enough power inspection

Good luck!

Was this answer helpful?
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. My 93 Ford Explorer hesitates when opening the throttle, it is very sluggish and acts like it has no power. Then all of a sudden i

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: Every time I accelerate I hear air either being sucked in or blown out from somewhere under the hood.

Hello. Rushing air noises during acceleration could be considered a normal part of operation. Even more so with high displacement engines, that rapidly ingest and move a lot of air and gases both through the intake and exhaust systems. If...

Q: Car will not start. It was running fine, normal shut down, and wouldn't start back up five minutes later.

It really does sound like your battery has gone dead. Sometimes they can develop an internal short where they seem fine one moment then go dead the next. The indicators on the chargers usually don't tell the whole story. ...

Q: Car stalls, rpms go up, & no power

Hello. This can be caused by a number of things. I usually start by scanning the computer for codes. This will give me an indication of anything the computer is seeing. If it is not seeing anything, then it may...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.