stikz
New Member
- Joined
- December 10, 2010
- Messages
- 7
- Reaction score
- 0
- City, State
- Pittsburgh, PA
- Year, Model & Trim Level
- '99 4.0 ohv 6 cyl
ok I have a 1999 Explorer OHV 4.0. I bought it in november of last year. Since i purchased the vehicle the check engine light has been on with various codes.
for a while it would run ok but occaisionally get a rough idle.
Then my fuel filler pipe broke. At first due to limited funds i used a washing machine rubber hose duct taped inside the fuel filler hose to fill it with gas- eventually it started to run horrible- and would stall out at idle- whether park, or neutral or at stops- eventually i got a used pipe at a junkyard and installed it- then the filler nozzle on the tank broke off- so i JB welded it back on and now i have no gas leaks-but still running bad- I found some bad plug wires that arc'd thru the insulation and replaced them with older wires in better condition. for about a day it ran perfect.
Then it started stalling out and would not run unless my foot was on the accelerator. while driving if i took my foot off the gas pedal the RPMs would drop and the truck would stall out- So since i needed to get to work i kept my foot on the brake and gas pedal simultaneously while driving. 2 days after i started it up to see the O/D light flashing. I've heard this is usually related to the torque converter or solenoids on the transmission.
The next day i put in all new plugs and wires- This brought power back to my acceleration but did nothing for the rough idle/stalling problem.
Now i just chkd the diagnostics and im getting system lean bank 1 & 2- o2 sensor 2
and 2 no definition codes- not sure of the numbers
my truck seems to push and pull in a hesitant manner when down shifting.
and the RPMS drop slightly at times even when my foot is consistent on the gas pedal.
when warm sometimes the truck will idle without stalling- and i can let my foot off the pedal without it stalling sometimes as well too but not often
Since i bought it i replaced
the DPFE sensor- (July '10)
both Pre cat O2 sensors
Plugs and wires TWICE most recent was november '10 a few days ago
Mass Air sensor (October '10)
Transfer case (july '10)
Fuel Filter (October '10)
Air Filter (May '10)
I cleaned my IAC
Sprayed carb cleaner around all of my vacuum lines and the idle stayed the same
From what i understand the prob could be intake gaskets, fuel pressure (pump or regulator), coolant temp sensor, cam sensor, crank sensor, Vacuum Leak, PCV valve, EGR Valve, Tranny Solenoid Pack, Torque Converter
so being that my finances are low i was hoping that some experience mechanics or 4.0 ohv drivers could point me in a good direction for low cost/free diy testing/fixes
or other possible problems
thnx
for a while it would run ok but occaisionally get a rough idle.
Then my fuel filler pipe broke. At first due to limited funds i used a washing machine rubber hose duct taped inside the fuel filler hose to fill it with gas- eventually it started to run horrible- and would stall out at idle- whether park, or neutral or at stops- eventually i got a used pipe at a junkyard and installed it- then the filler nozzle on the tank broke off- so i JB welded it back on and now i have no gas leaks-but still running bad- I found some bad plug wires that arc'd thru the insulation and replaced them with older wires in better condition. for about a day it ran perfect.
Then it started stalling out and would not run unless my foot was on the accelerator. while driving if i took my foot off the gas pedal the RPMs would drop and the truck would stall out- So since i needed to get to work i kept my foot on the brake and gas pedal simultaneously while driving. 2 days after i started it up to see the O/D light flashing. I've heard this is usually related to the torque converter or solenoids on the transmission.
The next day i put in all new plugs and wires- This brought power back to my acceleration but did nothing for the rough idle/stalling problem.
Now i just chkd the diagnostics and im getting system lean bank 1 & 2- o2 sensor 2
and 2 no definition codes- not sure of the numbers
my truck seems to push and pull in a hesitant manner when down shifting.
and the RPMS drop slightly at times even when my foot is consistent on the gas pedal.
when warm sometimes the truck will idle without stalling- and i can let my foot off the pedal without it stalling sometimes as well too but not often
Since i bought it i replaced
the DPFE sensor- (July '10)
both Pre cat O2 sensors
Plugs and wires TWICE most recent was november '10 a few days ago
Mass Air sensor (October '10)
Transfer case (july '10)
Fuel Filter (October '10)
Air Filter (May '10)
I cleaned my IAC
Sprayed carb cleaner around all of my vacuum lines and the idle stayed the same
From what i understand the prob could be intake gaskets, fuel pressure (pump or regulator), coolant temp sensor, cam sensor, crank sensor, Vacuum Leak, PCV valve, EGR Valve, Tranny Solenoid Pack, Torque Converter
so being that my finances are low i was hoping that some experience mechanics or 4.0 ohv drivers could point me in a good direction for low cost/free diy testing/fixes
or other possible problems
thnx