Look at any hoses or sensors that connect to the intake manifold. Listen and look around your Mercury Grand Marquis’s engine bay to see if you can find the vacuum leak. One of the most common causes for the P0174 code to show is a vacuum leak. If there is an air leak after the MAF sensor, it’s not being measured as it enters the intake, which increases the air in the air-to-fuel ratio. Your Grand Marquis’s MAF and/or MAP sensors meter the air as it enters the engine. The P0174 code is thrown when something has caused too much air to get into your Grand Marquis’s combustion chamber or the fuel pressure at the rail is below where it needs to be.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |