98 ranger 4.0 rough idle

[syoung1187]

The right rear freeze plug sprug a leak so i got some barr stop leak and that fixed it. This was a month ago. Last week inwas driving home and it was hit so i pulled over . It was pouring anitfreeze out of the same freeze plug. So i let it cool down for a while then I added more coolant and water I got almost to the house and the truck shut off acted like the battery was dead there was no power so I had to get towed home about two days later I took the battery to Advanced Auto Parts and they charged it in a truck started right up I refilled the radiator with water and antifreeze replaced 3 freeze plugs that were already leaking now the truck crank right up I driven it today for the first time no leaks but now there's a rough idle and I have a po171 and po174 which I know is bank one and bank too lean any suggestions on why are you running rough

 

[TxGasRacer]

http://troubleshootmyvehicle.com/ford/4.0L/troubleshooting-P0171-and-P0174-page-1

 

[adsm08]

Well it's running rough because it is lean.

The heat may have damaged the intake gaskets. I would start by replacing them.

 

[Big Jim M]

Before replacing the intake gaskets I'd spray some fuel on them to see if the idle smooth's out!
Big Jim