Brandon96
Explorer Addict
- Joined
- September 6, 2008
- Messages
- 1,313
- Reaction score
- 6
- City, State
- Central Virginia
- Year, Model & Trim Level
- '96 XLT 4.0 OHV
Hey all,
Just got my truck started back up and running after 3 years of sitting around. 1996 4.0L OHV V6 Vin code "X". Addressed all the fluids and replaced some vacuum lines that dry-rotted and she seems to be running great. I just got left with some what seem to be electrical gremlins that are starting to pain me..
Before I blew the flywheel up the truck was running great and had no DTC's or any issues of the sort. I do, however, distinctively remember losing just the 4-5 interval wiper speeds randomly for the couple months leading up to it. The Low Constant and High Constant (whatever they are properly called) settings on the wiper stalk worked fine.. except the blades would never return to the down position. They would just stop right in the middle of wherever I turned the wipers off. Fast forward to today, that problem still exists and the only difference is that the interval speeds just don't seem to work at all anymore.
I have noticed a few other issues;
1) The dashboard illumination lights - Speedo, HVAC controls, 4x4 knob, rear wiper etc etc.. will sometimes not come on when I turn the headlights on. The dome lights and door lights do however continue to work when this happens. Turning the headlights on and off a couple times or turning the truck off and back on seems to clear this up.
2) I accidentally turned the hazard lights on while cleaning out the dash and noticed only the left side of my truck was blinking. Only the left arrow and indeed left turn signals were flashing. I again turned them on/off a few times and turned the key off/on a few times and the problem went away. I still think the right arrow on the instrument cluster is out or not working.. not sure if that's a bulb but I currently have it ripped out to replace all the bulbs in it anyway.
3) The truck doesn't seem to want to go into 4x4 while in park when I use the knob. I can drop it into neutral and come back to park and eventually it will make its way to 4x4.
4) I have a DTC P1451 - "EVAP Control System Canister Vent Solenoid Circuit Malfunction". I have briefly searched the truck for shorts and tested that circuit for voltage, I can't say whether it's getting the proper voltage or not, I need to do some more research on that..
I'm wondering if anyone with any experience can offer up some advice. My thoughts are; Some of these circuits are not grounded correctly anymore or are not receiving proper voltage because of the truck sitting for so long OR, most of the circuits are connected/controlled by the GEM/BCM and it might be going bad.
This is just what I've noticed so far, but if anyone had any suggestions on how to go about testing/fixing any of these issues I am ALL ears. Anyone with any knowledge of the truck's electrical layout please chime in, I'm trying to track down some wiring diagrams. I'll be slowly picking at these issues over the next few evenings and weekends. I want to get this thing back out on the trails ASAP.
Thanks!
Just got my truck started back up and running after 3 years of sitting around. 1996 4.0L OHV V6 Vin code "X". Addressed all the fluids and replaced some vacuum lines that dry-rotted and she seems to be running great. I just got left with some what seem to be electrical gremlins that are starting to pain me..
Before I blew the flywheel up the truck was running great and had no DTC's or any issues of the sort. I do, however, distinctively remember losing just the 4-5 interval wiper speeds randomly for the couple months leading up to it. The Low Constant and High Constant (whatever they are properly called) settings on the wiper stalk worked fine.. except the blades would never return to the down position. They would just stop right in the middle of wherever I turned the wipers off. Fast forward to today, that problem still exists and the only difference is that the interval speeds just don't seem to work at all anymore.
I have noticed a few other issues;
1) The dashboard illumination lights - Speedo, HVAC controls, 4x4 knob, rear wiper etc etc.. will sometimes not come on when I turn the headlights on. The dome lights and door lights do however continue to work when this happens. Turning the headlights on and off a couple times or turning the truck off and back on seems to clear this up.
2) I accidentally turned the hazard lights on while cleaning out the dash and noticed only the left side of my truck was blinking. Only the left arrow and indeed left turn signals were flashing. I again turned them on/off a few times and turned the key off/on a few times and the problem went away. I still think the right arrow on the instrument cluster is out or not working.. not sure if that's a bulb but I currently have it ripped out to replace all the bulbs in it anyway.
3) The truck doesn't seem to want to go into 4x4 while in park when I use the knob. I can drop it into neutral and come back to park and eventually it will make its way to 4x4.
4) I have a DTC P1451 - "EVAP Control System Canister Vent Solenoid Circuit Malfunction". I have briefly searched the truck for shorts and tested that circuit for voltage, I can't say whether it's getting the proper voltage or not, I need to do some more research on that..
I'm wondering if anyone with any experience can offer up some advice. My thoughts are; Some of these circuits are not grounded correctly anymore or are not receiving proper voltage because of the truck sitting for so long OR, most of the circuits are connected/controlled by the GEM/BCM and it might be going bad.
This is just what I've noticed so far, but if anyone had any suggestions on how to go about testing/fixing any of these issues I am ALL ears. Anyone with any knowledge of the truck's electrical layout please chime in, I'm trying to track down some wiring diagrams. I'll be slowly picking at these issues over the next few evenings and weekends. I want to get this thing back out on the trails ASAP.
Thanks!