When accelerating accelerate car seems to misfire and hiccup

Hi and thanks for using 2CarPros.

No one should ever assume, and yes I totally agree with you. These engines are well designed and should last well over 200,000 when properly maintained.

With that in mind, the first thing I would do is check for diagnostic trouble codes. Here is a quick video showing how that is done:

https://youtu.be/YV3TRZwer8k

Now I realize most people don't own a scanner, but most parts stores will do it for free. Once that is done, we will know which cylinder is missing. The diagnostic trouble code that is retrieved will indicate that.

With that information, I would simply remove the spark plug and inspect it. If it is good, I would then switch the coil pack from that cylinder with a cylinder that isn't missing. Next, clear the codes and drive the car. If the check engine light comes back on, see if the misfire moved to a different cylinder. If it did, the coil pack is bad and needs replaced. If it didn't, then I would check engine compression to determine if any of the cylinders are low.

Here are a few links that you may find helpful. Take a look through them. They discuss engine misfires, how to diagnose them, and how to repair. Additionally, I am attaching the procedures for replacing spark plugs.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.2carpros.com/articles/how-to-change-spark-plugs

Now, check to see what the diagnostic trouble codes are. Keep in mind, those codes you get when scanning the computer can be extremely helpful. Let me know what they are.

Take care,
Joe

Welcome back:

A P0700 is more or less a generic transmission code. Basically, the transmission control module (TCM) sets this code when there is an emission related transmission issue. This code is called a Type A code, and it is usually accompanied by other codes. Take a look at this:

Action Taken When the DTC Sets - Type A
* The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
* The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.

Okay, with that being said, do not clear the codes until freeze frame data can be looked at to determine what caused the code to be set. If there are additional codes, I need to know what they are. If you have them, let me know.

Joe