|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
July 18th, 2019, 08:55 AM
|
 |
|
|
Join Date: Jul 2012
Location: Joplin MO
Posts: 1,161
Likes : 2
Liked 116 Times in 112 Posts
|
|
|
If the truck starts with the old one, that tells you that the new one is defective.
|
|
2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS
|
July 27th, 2019, 12:25 PM
|
 |
|
|
Join Date: Nov 2018
Posts: 14
Likes : 0
Liked 0 Times in 0 Posts
|
|
Update
Put the old one back in and it fired right up. Returned the bad one and they sent a replacement. Put the replacement in and it fired right up. The transmission is shifting smoothly and is working now. The only fault code I have now is 173 HEGO (HO2S) sensor fault/rich. What can cause this fault?
Thx for all of your help with this.
|
|
92 F150 XLT 2WD 5.0 302 E4OD long bed
|
August 3rd, 2019, 10:29 AM
|
|
|
|
Join Date: Nov 2018
Posts: 14
Likes : 0
Liked 0 Times in 0 Posts
|
|
Code 173 and 334
|
Still have codes 173 and 334. Performance is sluggish. Any ideas what to look for?
|
|
92 F150 XLT 2WD 5.0 302 E4OD long bed
|
August 3rd, 2019, 11:27 AM
|
|
|
|
Join Date: Jul 2012
Location: Joplin MO
Posts: 1,161
Likes : 2
Liked 116 Times in 112 Posts
|
|
|
The 334 is EVP sensor - that's EGR valve position sensor. The EGR system needs to be troubleshot. The 173 might be a bad O2 sensor, but it's more likely it's running excessively rich due to too much fuel or restricted air. I'd go get the cat tested for excessive backpressure.
|
|
2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS
|
|
The Following User Likes This Post:
|
|
January 24th, 2020, 08:32 PM
|
|
|
|
Join Date: Nov 2018
Posts: 14
Likes : 0
Liked 0 Times in 0 Posts
|
|
I have a new engine code, not sure if I should start a new thread since it is on the same truck. I now have a code 556 fuel pump relay primary circuit fault. The truck will sometimes idle fine other times it idles rough and wants to die and dies when put in drive. After continually starting and dying I will eventually be able to drive it. The truck has a total of 3 codes, 173, 334 and the 556. I know the catalytic converter is bad and the exhaust system needs replaced. The EGR valve, valve position sensor and egr valve control sensor.
Any help on trouble shooting the 556 is greatly appreciated.
|
|
92 F150 XLT 2WD 5.0 302 E4OD long bed
|
January 24th, 2020, 10:29 PM
|
|
|
|
Join Date: Jul 2012
Location: Joplin MO
Posts: 1,161
Likes : 2
Liked 116 Times in 112 Posts
|
|
DTC 556 indicates a fuel pump primary circuit failure.
Possible causes:
◾Inertia Fuel Shutoff (IFS) switch not reset or electrically open (if in primary circuit).
◾Open or shorted circuit.
◾Damaged fuel pump relay. (inspect it or swap Horn Relay into socket - assuming horn works)
◾Damaged Powertrain Control Module (PCM).
|
|
2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS
|
|
The Following User Likes This Post:
|
|
January 25th, 2020, 05:43 PM
|
|
|
|
Join Date: Nov 2018
Posts: 14
Likes : 0
Liked 0 Times in 0 Posts
|
|
|
Thank for the feedback. I swapped the relays and will see if it happens again. The inertia fuel shut off did not need reset. I will keep an eye on it. I'm going to take it in and get the catalytic converter replaced.
|
|
92 F150 XLT 2WD 5.0 302 E4OD long bed
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
 Linear Mode
|
|
|
