Sevice Engine Soon Light...
#1
Sevice Engine Soon Light...
So about 3-4 times per day, my truck will accelerate very quickly with the slightest touch of the gas pedal, then followed by the service engine soon light...I checked for any codes to see what I may need to fix, but no codes are found. Any suggestions on what this could be??
I am also having issues to where I a few times per day I have to put my truck in neutral to get it to start instead of in park...could the two be related?
I am also having issues to where I a few times per day I have to put my truck in neutral to get it to start instead of in park...could the two be related?
#2
#4
The first thing to do is to take the pedal assembly out(it's only 3 bolts and two connectors) and clean the switch and the sensor with some contact cleaner. This worked for me for over a year.
While you have the assembly out, check the part number of the TPS thingy. If it is PN - F81Z-9F836-AB, then you can get an oem ford one(the entire assembly) here:
http://www.ebay.com/itm/231269309848?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Looks like the price has increased since i purchased mine, but this is still the best deal going on the OEM parts. I just swapped out the entire assembly, took the old sensor and IVS out, cleaned them up and tossed them in the glove box along with my extra cps and clutch pedal bushing.
Note that you can buy the position sensor from napa/dorman/etc, but I found nothing but negative experiences when i was researching.
Good luck!
#5
#6
I went to an autoparts store and had them check for codes...don't have a scanner of my own. Where would be the best place to get this checked out that wont cost too much?
#7
I would hold off on spending any $$$ until you have done some more troubleshooting.
If you're not retrieving a Hard or Soft Code Stored in the PCM, it's most probably the PCM itself.
The PCM will log events from the field but has no way to log anything occurring to itself (it doesn't monitor itself).
A problem with the PCM can cause the symptoms (amongst others) you speak of.
As Pikachew eludes to, you may require a Bi-Directional Scan Tool for Pulse With Modulation Systems to see what, if any Code is logged. Perhaps the one your using is not retrieving a Stored Code. The Auto Parts Stores while helpful, don't generally use top of the line Scan Tools to assist their customers - Just my observation.
If you're not retrieving a Hard or Soft Code Stored in the PCM, it's most probably the PCM itself.
The PCM will log events from the field but has no way to log anything occurring to itself (it doesn't monitor itself).
A problem with the PCM can cause the symptoms (amongst others) you speak of.
As Pikachew eludes to, you may require a Bi-Directional Scan Tool for Pulse With Modulation Systems to see what, if any Code is logged. Perhaps the one your using is not retrieving a Stored Code. The Auto Parts Stores while helpful, don't generally use top of the line Scan Tools to assist their customers - Just my observation.
Trending Topics
#8
#9
Thread
Thread Starter
Forum
Replies
Last Post
Farmboypowerstroke
1999 - 2003 7.3L Power Stroke Diesel
4
09-30-2015 06:41 AM