Check engine light
Asked by Cornelius Aug 14, 2016 at 11:59 AM about the 2003 Ford Crown Victoria LX
Question type: Car Customization
I have a 03 grand Marquis that needs a theromstat
housing but it's not bad but on today my check
engine light came on and my car is kinda like
shaking when I drive what could be the problem
3 Answers
Shaking is usually from the engine misfiring. Not necessarily related to the thermostat housing, but could be an indicator the engine needs general servicing. Start by getting the CEL/DTCs read (can be done for free at most parts stores), then address the misfire first. If the thermostat housing is cracked check you have proper coolant levels. Get it replaced soon along with the thermostat.
Shaking is usually from the engine misfiring. Not necessarily related to the thermostat housing, but could be an indicator the engine needs general servicing. Start by getting the CEL/DTCs read (can be done for free at most parts stores), then address the misfire first. If the thermostat housing is cracked check you have proper coolant levels. Get it replaced soon along with the t-stat.
I had that problem, there was a wiring problem with one of the fuel injectors not injecting fuel. I fixed the wiring butt connector and the problem was fixed, of course your problem could be a dirty injector, or a spark problem.
