I was traveling when I got to my hotel room when my engine light started blinking while I was waiting in parking lot ....it was on already....it would go out from time to time and thinking it was the hood latch I wasn't concerned but I took it to shop hope everything ok ...
It's a 2017 Dodge Durango GT 200k on it just bought it used

 

Get the codes read, post back. Blinking check engine light is from a misfire.

 

For future reference, an unlatched hood will not cause the check engine light to come on. If the check engine light is on, you should have the diagnostic codes read and then research the severity of the code. Considering the number of free or very inexpensive options to be able to get diagnostic codes read, there's really not an excuse to not do so. If a code reader just one time points to a simple issue that could be causing fuel economy issues (such as a bad reading from a MAF or IAT sensor due to checking/replacing an air filter) it often times will pay for itself.

Stepping off my soap box, a flashing Check Engine Light (CEL) is indicative of an emissions-related issue (often a misfire or large vacuum leak) and many times will cause the vehicle to go into limp-home mode. Was your Durango running roughly when the CEL light was on, or especially once it was flashing? If you've been driving it for awhile with the CEL on and it was on due to a misfire, there's a good chance you've damaged your catalytic converter or converters. An inexpensive scan tool would definitely have cost less than replacing one or more catalytic converters. Oops, scooting that soap box back under the bench now.

-Rod

 

No need to spend money on a code reader. In our area most auto parts stores will read the codes for free.

 

Code readers are cheap insurance. Heck you can get a basic one for under $20 now. Great tool to have in your toolbox (or glove box) and not have to drive to an auto parts store. IMO

 

And when the vehicle is in limp home mode, driving the vehicle any more than necessary to get to a safe location is not a great idea. I've also heard from others that getting codes read at some parts stores only results in their interpretation of what might be the issue versus the actual diagnostic code being reported. I'm not sure how often that, or if it even still is, the case.

I'm not trying to discount the value in sharing that parts stores often offer that service, or suggesting that everyone should want to spend money on a diagnostic tool of some form, but just trying to share some info on potential limitations of relying on the free services.

-Rod