Q: Hesitates cracks loses power

asked by on

My van hesitates, cracks and loses power. It’s been in the repair garage 5 times for the same problem. It was driving like it had sediment in the system, so I had the tank cleaned. I put in a new fuel pump, had the lines and injectors cleaned and it’s still hesitating, cracking and losing power. If I pump the gas pedal allot of times it will go, but that won't solve anything. The repair man says he wants to replace a sensor located in the throttle body. He thinks this will fix my van. What do you think? Any ideas?

Hello. The throttle position sensor could very well cause the symptoms you describe. Since you have had the fuel supply components checked and replaced, this is the next logical component to suspect. If the throttle position sensor checks out, I would test the fuel pressure to make sure you are getting good pressure to the injectors. If you have low fuel pressure, have the fuel filter (which is in the tank) checked for sediment or corrosion which may be limiting fuel volume and pressure. If stopped up, it may be necessary to replace the fuel tank if it’s that rusty. To verify the problem, a professional from YourMechanic can assist with diagnosis of the loss of power issue and can perform needed repairs.

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. Hesitates cracks loses power

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: How do I use the child-protection door lock?

The child-protection system is a safety precaution that keeps children from being able to open the rear doors of your vehicle from the inside. To activate the child-protection lock, open both rear doors. The child-protection locks are on the side...

Q: I'm having fuel pump relay problems.

Hey there, thanks for writing in about your 2001 Jeep Grand Cherokee. It sounds like you have an intermittent connection issue caused by a loose fuse holding tabs. The black you see is carbon where the voltage is jumping a...

Q: Advice on which type of gas to use

If you look at your fuel gage, it will say "premium fuel only". The vehicle was designed to only run on this fuel. If you try and run the lower grade fuels, you will run the risk of damaging the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...