My car was misfiring so i replaced spark plugs coil packs...

Q: My car was misfiring so i replaced spark plugs coil packs and fuel injectors my cylinder 1 is still misfiring what can it be

asked by on May 22, 2017

My car was showing a misfire in 5 so i replaced all spark plugs it was still showing so i did the coil packs and then did fuel injectors when it was still showing now 1 is misfiring it has a rough idle and when stopped feels almost like it is going to die and has somewhat of a rough take off what else could it be?

My car has 123900 miles.
My car has an automatic transmission.

Since you were first showing misfire on number 5 cylinder and now you are showing misfire on number 1 cylinder. I have to say you introduced a problem on number one cylinder. I suggest first removing and checking the spark plug and swap in a new one or swap with cylinder next to it. This way the misfire moves to other cylinder then you know it was plug and replace it. If misfire still on number one then check for spark and injector pulse and replace injector or coil as needed.

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

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

Oil drained out and engine seized

If the engine will not turn over with the starter, there is a good chance that the engine has seized up due to lack of oil. I would ask for help from one of the mechanics at YourMechanic to inspect...

Cannot pump gas except a small amount it will cut off like it is full. Gauge will show half full or full. Later it will show empty

There are a lot of things that can cause what you've described: a faulty fuel sending unit in the tank and the tank is actually full, a stick ORVR valve not allowing pressure in the tank to leave when fueling,...

Very slow coolant leak

Hi there. I wouldn't assume that you have a coolant leak based on coolant being present after the vehicle overheated. In most cases, the coolant will boil out of the radiator cap and cause this type of 'spillage'. If you've...

Related articles

The Best Used Cars to Buy If You Get Motion Sickness
For For people that suffer from motion sickness, even on the shortest car trip, riding in a vehicle can prove to be unbearable. What’s great is that there are a number of cars on the market that can help to...
A Buyer’s Guide to the 2012 Chrysler 200
In In 2011, Chrysler completely overhauled, updated, and remodeled their entire line, including the introduction of the new Chrysler 200. This reimagining of the old, boring Dodge Sebring sedan was already an exciting move for Chrysler, and the 2012 Chrysler...
How to Get Chrysler Dealership Certified
Chrysler car dealerships offer automotive technician jobs to mechanics who are certified through the MOPAR CAP (Career Automotive Program).