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?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
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. 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: Blown head gasket with blue b evil in it now lost power on 2005 Chevy Equinox

The sealer is for a temporary fix and it did work for a few weeks. You may now have to get the engine fixed. The head gasket may be blown more than the sealer can fix. If you need to...

Q: Car misses and acts like it is losing power while idling

Hello. If the engine is turning off then the first thing that must be done is a code check. I usually take my scan tool to see if there are any codes int he computer indicating what is going on....

Q: Sloshing noise when pressing the accelerator

Hi there. That noise you are hearing is the engine coolant (anti-freeze) traveling through the heater core. The reason you can hear it is due to air being trapped in your engines cooling system. You may not have any drivability...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...