Mechanics

F150 CHECK ENGINE LIGHT

1997 Ford F-150

Engine Mechanical problem
1997 Ford F150 V8 Four Wheel Drive Automatic 162000 miles

HOPEFULLY IM GOING TO GIVE YOU USEFUL SYMPTOMS. THE TRUCK HAS AN EXPERIMENTAL CLAMP FROM THE MANIFOLD TO PIPE CONNECTION. UNTIL IT WARMS UP IT HAS A LEAK COMING FROM THAT CONNECTION. AFTER A HARD RAIN LAST WEEK THE CHECK ENGINE LIGHT CAME ON, BUT THE TRUCK STILL PERFORMED FINE UNTIL THIS MORNING. UPON GOING DOWN THE ROAD THE CHECK ENGINE STARTED FLASHING AND IT IS RUNNING REALLY ROUGH. I USED A OBD11 AUTOSCANNER AND RECEIVED THE FOLLOWING CODES P0308 CYLINDER 8 MISFIRE & P0171 SYSTEM TOO LEAN(BANK 1). I THOUGHT MAYBE I HAD A BAD O2 SENSOR UNTIL NOW. CAN YOU PLEASE HELP
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Wlvrinefan
April 7, 2009.



Hello
Thanks for the donation

For the misfire code you will need to start troubleshooting with the following procedures..


http://www.2carpros.com/forum/automotive_pictures/261618_Noname_412.jpg



If any step forwards you to a further step not posted just let me know so I can get it for you.

Below is a list of possible causes for the next code...


http://www.2carpros.com/forum/automotive_pictures/261618_2_29.jpg



Post results of troubleshooting tests and I will follow up.

Thanks for using 2CarPros.com!