it lurches forward in cold weather It has a 2.5 v6
Dec 30, 2011 at 5:57 PM
it lurches forward in cold weather
1998 MERCURY MYSTIQUE
LARRY GRECO
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Hello,
There could be a number of reasons why the engine has hesitation.
It could be due to a weak fuel pump, dirty fuel filter, vacuum leak, dirty mass air flow sensor, worn spark plugs etc.
The best course of action would be to take a look at induvial items and take appropriate action. Like cleaning out the mass air flow sensor, replacing fuel filter, checking for any vacuum leak and fixing if necessary.
Take a look at this helpful guide:
https://www.2carpros.com/articles/engine-hesitates
Go through this and report back to what you find.
Is the check engine light illuminated? If so scanning and retrieving the code(s) can help with the diagnostics.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
If you have any questions, please feel free to let me know.
Thank you.
There could be a number of reasons why the engine has hesitation.
It could be due to a weak fuel pump, dirty fuel filter, vacuum leak, dirty mass air flow sensor, worn spark plugs etc.
The best course of action would be to take a look at induvial items and take appropriate action. Like cleaning out the mass air flow sensor, replacing fuel filter, checking for any vacuum leak and fixing if necessary.
Take a look at this helpful guide:
https://www.2carpros.com/articles/engine-hesitates
Go through this and report back to what you find.
Is the check engine light illuminated? If so scanning and retrieving the code(s) can help with the diagnostics.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
If you have any questions, please feel free to let me know.
Thank you.
Jan 24, 2022 at 3:11 PM