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loss of power

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Symptoms of a Bad or Failing Speed Timing Sensor
Common signs include the transmission having difficulty shifting, Check Engine Light coming on, vehicle not starting, and loss of engine power.
Is it Safe to Drive With a Misfiring Cylinder?
An engine misfire can be caused by bad spark plugs or imbalanced air/fuel mixture. Driving with a misfire isn't safe and can damage your engine.
Symptoms of a Bad or Failing Air Charge Temperature Sensor
Common signs include a lack of power when accelerating, trouble when starting in cold weather, and a decrease in fuel efficiency.
How Long Does an Oil Cooler Last?
The heat that the engine produces can produce a lot of damage in the right situation. Making sure that all of the systems on a car that reduce the heat of the...
How Long Does an Oxygen Sensor Last?
Today’s automotive exhaust systems are much more complex than they once were. They must be in order to comply with much stricter environmental controls and the requirement to create less pollution. Your...
How Long Does a Throttle Position Sensor Last?
The throttle body in your car is a rather involved system that is part of its air intake system. The air intake system is responsible for controlling the amount of air...
Symptoms of a Bad or Failing Automatic Timing Advance Unit
If your car experiences engine knock, sluggish performance, or excessive black smoke, you may need to replace your automatic timing advance unit.
How to Diagnose a No-Spark or Loss of Power Condition on a Modern Car
Misfires caused by a loss of power condition on a car can be tricky to diagnose, but are necessary to fix to avoid further damage and costly repairs.

Related questions

Question
I have a 1996 chevy k1500 and I just put a new motor in it and it will start and run and idle amazing but has no power in drive
Check to see if ignition timing is advancing per the specifications in the factory service manual as you rev the engine. Measure fuel pump pressure. Check throttle position sensor, oxygen sensors, vacuum leaks, ignition system malfunctions, bad valve timing if...
Question
99 Honda civic, replaced fuel regulator due to stalling when gas peddle presses. Runs now but feels held back. Would ECM reset fix
First of all, check carefully for air leaks. Any hose or rubber boot that is in bad condition and is allowing air to get into the engine without passing through the Air Mass Meter will lead to performance problems. Then...
Question
The rpm jumps up and down about 300 rpm when accelerator is constant. Only seems to happen when traveling between 40-50 mph
Hello, thank you for writing in. The truck may be having issues with air sensors, fuel pressure, or other electronic issues. I have have to replace the fuel module and the mass airflow on my 1998 S10 with 168,000 miles....
Question
Will not rev but will slowly
The causes of loss of power are pinpointed in an engine loss of power diagnostic. To give you an initial idea, although there are many possibilities, a partial list of causes of the problem you are describing would include faulty...
Question
1995 BMW 325is Loss of Power
That's a lot to consider. It's hard to say if you are dealing with any single problem or if you have multiple failures. For instance: is the same thing that is causing the lack of power the same as whatever...
Question
My chevy hhr is having sluggish accerlation and knocking sounds in the front and rear wheels
Hello, thank you for writing in. The vehicle may be having engine issues, or it may be having wheel/suspension issues. The first thing to determine is if the noise occurs as long as the car is on, or if it...
Question
My car keeps jerking, almost like when a stick shift switches gears but I have an automatic 2012 Hyundai Sonata
Hello, thank you for writing in. The first possibility that comes to mind is the air intake sensors. Start by making sure idle air control valve, throttle, and EGR systems are all working well. These types of components can be...
Question
I have a 2012 VW CC and it is bucking/loosing acceleration whenever I hit the gas hard.
Hello. Most of the time this is caused by low fuel pressure or a failing or dirty air flow sensor. I would usually scan the computer for codes first to see if anything comes up. If there are codes then...
Question
My 03 navigator leaked s brownish fluid and now it doesnt move
Hello, thank you for writing in. Due to the fluid found, we need to find and identify the cause of the leak first and foremost. This can be done by tracing it from where the fluid was found, or by...
Question
Low engine compression
Claimed by Jeff Engstrom
Question
When car is shifted into drive car will not go forward when pressing gas it just rev the engine.But when shifted into reverse car
Hello, thank you for writing in. The color and condition of the transmission fluid should be a huge indicator. Low transmission fluid is one of the leading causes of issues with the transmission. You will want to start by refilling...
Question
2013 Subaru Impreza. Speedometer not working. Abs light on check engine light on and brake light on what could be going on?
Hello, thank you for writing in. The multiple lights coming on is a sign that one of the major components in the vehicle is failing. Considering the lights all seem to be related to the ABS or wheel speed sensors,...
Question
2001 nissan maxima refuse to pick up speed while pressing gass
The first thing to do is see if any diagnostic trouble codes have set. If so, those will typically lead to a resolution, once they are followed up on. If no codes, then typically the cause of no acceleration will...
Question
Car wont move when I step on the gas. I was driving when this happened
Hello, thank you for writing in. There are several reasons the gas pedal may become unresponsive. The first step is to have it scanned for diagnostic codes, to find out what issues the vehicle's computer has detected. This will narrow...
Question
My engine/transmission has a rough/growling when in gear and at acceleration.
Hello, thank you for writing in. Everything you have done up to this point has been valid. However, there are still an a high number of possible components that can cause these symptoms. You will want to spend some time...
Question
Well I been having trouble with gas pedal when I try to push on gas it goes like it doesn't want to go so I push harder and it spe
Hello, thank you for writing in. The vehicle needs to be inspected for several issues. First, the gas pedal controls the air flow into the engine, and the computer matches the amount of air to the amount of fuel needed....
Question
Also my engine light comes on why
Hello, thank you for writing in. Yes, the warning light very likely has to do with any issues you are having with the vehicle. You need to have the vehicle scanned. Explained further, when the computers in the vehicle detect...
Question
transmission wont engage most of the time and when it does it wont shift past 2nd gear
Hello, thank you for writing in. Automatic transmissions can be very tricky and complex. A simple flush may not correct issues that have led to a leak. Being low on transmission fluid means there is a leak somewhere, and that...
Question
I have changed the MAF sensor, oxygen sensors, gas cap, catalytic converter and I still get check engine light.
Hello, thank you for writing in. With a check engine light on, the first step is to have the vehicle scanned for diagnostic codes. This can be done by a technician, or at most auptmot8ve parts stores. That information will...
Question
Shut down while driving
Hello, thank you for writing in. It certainly sounds like the vehicle is losing electrical power, which is an almost definite sign that the alternator has failed. It is solely responsible for providing electrical power to the vehicle while driving....

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