Question about 2002 Ford F150 Regular Cab
On initial start up during warm up cycle, The engine will surge from 500-1200 in park and driving. No codes or check engine lights, After warm up no issues. Replaced air idle, throttle position, mass airflow sensors. slowed serge to 200-300 rpm. Did not find any vacum leaks. Throttle position and air idle sensors had carbon deposites.
Try changing your PCV valve make sure the hose is clean and not full of oil. Also check the elbow end that goes to the intake they tend to collapse from oil saturation. Hope this helps.
Posted on Sep 29, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
??There are two types of DTC's, 1 trip DTC's and 2
??A 1 trip DTC is for a condition that requires
immediate attention such as a catalyst damaging
??A 2 Trip DTC is one that a condition must be found
during 2 consecutive trips such as an EGR fault.
??Most Monitors do not set a DTC and light the MIL
when a vehicle fails a test for the first time during a
DRIVE CYCLE. If a test is failed on a second
consecutive DRIVE CYCLE the MIL will light and a
DTC is stored in the vehicles powertrain control
Feb 07, 2016 | Cars & Trucks
Sep 15, 2015 | Cars & Trucks
Mar 12, 2015 | 1997 GMC Safari
Aug 11, 2012 | 1995 Buick Park Avenue
Mar 13, 2011 | Ford F-150 Cars & Trucks
Jun 24, 2010 | 2004 Chevrolet Aveo
Apr 27, 2010 | 1994 Ford Taurus
Jan 06, 2010 | 2000 Ford Focus
315 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: