Q: 03 pontiac vibe getting misfire codes random and all 4 cylinders previously before some repairs it was cylinder 1 and 4 or 1 and

asked by on

I started getting a check engine light with codes P0300, p0301, P0304 I replace the spark plugs I still had a rough idle it's hesitating when I accelerate at low RPMs low gears like there's a loss of power or an issue shifting but not every single time I change the coils I change the MAF sensor I changed the alternator I was getting a high reading on the battery and the manual said that would have been one of the first things to change I change the drive belt I'm still having a bad drive at low RPMs and acceleration but when I get to higher RPMs above 2000 and above second or third gear I have no problems driving which leads me to believe it's not a fuel issue maybe an O2 sensor hopefully not the catalytic converter or a tranny solenoid but I'm not sure took it into Pep Boys they were no help no smells that are obvious no leaks that are obvious I was told them I might have a minor valve leak last time I took it in possibly a valve cap I haven't seen it myself

My car has 162000 miles.
My car has an automatic transmission.

Hi there. It is quite possible that the source of all of these issues are faulty or clogged fuel injectors. When this happens, it can cause misfiring and poor fuel economy. It might be a good idea to have one of our professional mobile mechanics come to your location and complete an engine is misfiring inspection to correctly isolate this issue and recommend the right 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. 03 pontiac vibe getting misfire codes random and all 4 cylinders previously before some repairs it was cylinder 1 and 4 or 1 and

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: I pulled out a size 15 fuze that ran my windshield wipers, what fuze size should i put back in to prevent from blowing it again

The fuse number 26 in the interior fuse box should be a 30 amp fuse. This is accordance with the wiper diagram.

Q: I have a random misfire at idle. I have tried everything I know. Plugs coils smoked the intake for leaks tested the EGR

Hi there. A random misfire is typically caused by a sensor or electrical connector that is faulty or the wiring harness is damaged; leading to the random supply of electricity. On a Sentra and other four-cylinder Nissan engines, it's common...

Q: Q: Car squeals

Hi. The automatic tensioner in your vehicle is a one piece design. It comes mounted onto a bracket, if it is replaced completely. It is possible to only replace the pulley and bearing, but if the issue is with the...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.