I have a 2012 Fiesta that I bought from a dealer and takes in and fixes R titled cars. This Fiesta had flood damage. I bought it with 6000 miles and it currently has about 23,000. Ive had this problem since I bought it but it has been bothering me lately and maybe getting worse. When I start it up (when its cold) it'll turn but it'll bog down immediately and act like its trying to stall on me, the RPMS are very low and its like its not getting any fuel. Sometimes it takes about 5-10 seconds for it to get going. It will not do this if the engine is warm, say I drive to the store and come back out 30 minutes later itll start fine. It's recently having problems when pulling out now, say if I'm at a stop light and it turns green itll bog down just a little when I hit the gas, and sometimes even whenever it shifts into second. I've dumped seafoam into it and seems to have no results.

Anyone have any ideas???






Just noticed I didn't post in the right area and not sure how to delete this one -.-

 

I really think flood damage is worse than an accident repair, water can cause problems much later. In some cars, the computer is located low on the passenger side, and if it is soaked, lots can happen. Is the car throwing any codes? I think, that a throttle position sensor can cause this, but the computer would probably store that code. I would take it to autozone or somewhere they will analyze for codes and see if anything is stored.

 

No codes came up.

 

Many times problems similar to this one can be caused by poor ground connections.
Just about all electrical systems need a good path to ground to complete a circuit.
When that path is difficult to travel(Offers resistance) the circuit cannot always function correctly.
Checking ground connections involves at the very least loosening the connection , moving it around , then retightening it. The better thing to do is to clean the contact surfaces then tighten the connection.
The best place to start is right at the battery terminals and check every connection to sheet metal and engine steel parts. Some may look just fine and still be defective.
Some ground connections are in the darnedest places. There are some even under the vehicle like the ground for the fuel pump is at the rear near the fuel pump itself.

 

Hi,This kind of problem is very troublesome, You will send it to the special repair shop.Most people can't know what the trouble.