Q: Car misfiring.
I am having random misfires and get Check Engine code P0300.
Recommended Services
| Car is not starting Inspection | $94.99 - $114.99 | Get a Quote |
Having your code is a great asset in helping us narrow down the information on the issue your Isuzu Trooper is experiencing! When you notice random misfires in your vehicle, this means that the engine is detecting misfires in two or more cylinders. While this may sound serious at first, it is likely that your vehicle is just ready for a tune up. Having a certified professional diagnose the ignition system will confirm if a simple tune up is needed for your Trooper or if the problem is more severe. Therefore, be sure to enlist the help of a trusted mechanic to troubleshoot and diagnose what needs to be done next.
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
What steps should I take to troubleshoot a problem connection with the Auxiliary input jack?
While Ford has made it as simple as possible to connect a portable music player to your car’s radio, there are a few problems that might crop up. Follow the tips below to troubleshoot the system: Make sure you’re not...
I have to tap the gas pedal to get my car started.
This could possibly be an issue with your Manifold Absolute Pressure sensor or MAP sensor. This sensor monitors the pressure inside the engines intake manifold. This pressure changes when the throttle is depressed. Perhaps the sensor is only reading a...
Ignition switch not turning
Hello! I suspect that the key tumbler is seized or broken. Some key tumblers seize up due to lack of lubrication and debris in the cylinder. Usually a little WD-40 will free the tumbler if it is seized. If lubrication...
driving and car cut off brakes lock and it want start even though it will turn over like it is going to start
The brakes need the engine to run to supply vacuum to the brake booster. This is why brakes are hard. The engine cut off can be from several reasons including a broken timing belt, bad fuel pump and loss of...
Car keeps dying after a few minutes of driving
A car that dies after it warms up is a sign of an electrical module that can no longer handle the heat it is generating. Which module it is will require someone to diagnose it. What I would need to...
Will a 4.0l engine and AWD 6 speed automatic from the 2007/8 Pacifica fit in the 2005 Pacifica?
You cannot use the engine and transmission combination in your vehicle. Your vehicle is not AWD and the two computer systems are not the same. The two have different wire harnesses as well as different body designs. I recommend not...
Car turns over but won't start an has poor compression. 2004 Chevy Cavalier
Hi there - just as an FYI, the cams turn at half crankshaft speed, so seeing them rotate slower than your eyes/brain expects them to is normal. First task is to check for problem codes - whether the Check Engine...
Why does my VSA, engine light and a quotation mark in a triangle mean, also why doed my car shake and then stop
Hello, thank you for writing in. The vehicle is warning you that there is an issue with the Vehicle Stability Assist. This means that the ABS system, wheel speed sensors, and the various other inputs for the VSA system will...
Cadillac CTS cruise control not working
Hi there. Usually an oil change will not impact the cruise control system. Newer cars use a fully electronic setup to maintain speed and may be able to maintain speed and distance behind the car in front of you. These...
Related articles
6 Essential Things to Know About Horsepower
Horsepower Horsepower is one of those terms that everyone recognizes, but just try asking someone what it means. You’ll more than likely receive a blank stare or a quickly mumbled response that doesn’t really help. The following are six things...
Symptoms of a Bad or Failing Fuel Pump
Common signs include a whining noise, hard starting, engine performance issues, and an inability to start the car.
Symptoms of Bad or Failing Spark Plugs
Common signs of faulty spark plugs include slow acceleration, loss of power, poor fuel economy, engine misfires, and difficulty starting the car.
Browse other content
Services
Maintenance
Estimates