Q: Q: Car running rough.

asked by on

I put on upper and lower manifold gaskets and now the car is showing a code and running rough.

Hi there. If the car is showing a code it would truly help to know what the code is. If the car was running fine prior to the gaskets being installed and it is running rough now then it is possible that something was not installed correctly or something may be loose. If you have a poor connection at a spark plug wire or possibly a hose that was not connected securely then this will occur. A mechanic would start with scanning the computer as the code tells us if it is related to air flow in the engine or if there is something externally that is going on. If you are not comfortable performing these tasks you should enlist the help of a certified mechanic, like one from YourMechanic.

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. Q: Car running rough.

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: Valve Cover Gasket 2006 Toyota Highlander

Hi there - a leaking valve cover gasket can cause misfires if spark plugs, plug wires/boots or coils get wet with oil, and there is a risk of fire if oil leaks onto the exhaust manifold. So it makes good...

Q: What will happen to my car if the rpm is high when idling?

If the "idle" speed is over 1,200 RPM, it's not wise to drive the car both for safety reasons and due to the possibility of repeated harsh transmission engagements and driveline wear. The vehicle's drivetrain was not designed to accommodate...

Q: Q: Steering wheel shakes

Hi. A severely worn hub bearing would be my guess. Hub bearings are sealed bearings. Over time, they wear and fail. Hub bearing noises tend to change during right and left turns as pressure is increased or decreased. Eventually, the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...