2002 xls-stalling & starting problem | Ford Explorer Forums

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2002 xls-stalling & starting problem

MR_NC

Member
Joined
December 25, 2004
Messages
13
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0
City, State
Ohio
Year, Model & Trim Level
2002 XLS
2002 Explorer XLS 4x4
5speed manual
4.0
no mods
140,000 on the clock

Only part needing replacement since I got the thing was the 4x4 module. I have replaced bearings, seals, etc in the drivetrain but I feel that to be pretty unrelated to the problems I have now.

It pretty much drops dead soon as it gets up to a "full hot" operating temp. Like today, really hot thing died in about 10 minutes of running. When cold it will start and run fine. Till hot then it's dead.

When it does this it will "try" to start/run momentary. Then step on gas and/or just wait and it will puke again. If you let it cool off completely it will run again for a short time.

1. I replaced the fuel filter as it seems gas related and Autozone had it.
2. I can hear the fuel pump run at key on condition.
3. I have checked spark and it does seem to have spark when this problem happens.
4. Once when it pulled this crap I was able to hear the fuel pump relay (in the main fuse block) going crazy. I shut the truck off and swapped out relay. No effect.
5. When it is running it is running right. No power loss, gas guzzling, etc. When it is not having a moment it makes you think it's fine.
6. Of course the stupid stuff has been checked over. Nothing disconnected, burned thru, toast or otherwise messed up that I can see whatsoever.
7. The system does in fact have fuel pressure. I checked that when I discharged it at the shrader valve today when I changed the filter.

Can the crank sensor I see behind the dampner cause this? ECU? I am stumped and don't want to get BS'd at the dealer. It's also not practical for me to go on a witch hunt hanging parts till im broke. Since my toy car is in the shop this sorta leaves me without wheels.

Best regards,
Sean
 



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Sounds like the computer is causing something to screw up. On my 00 sonoma I had the same issue. It wound up being that the computer was telling the injectors to dump high amounts of gas. Wound up screwing everything up, and replacing the computer. I sold the freaking thing once it ran somwhat ok. I would take it to a good local guy, and see if they can reset it.
 






when you say full hot, do you mean like into the red hot on the gauge or in the middle of the gauge hot?
 






Gatorblazer said:
Sounds like the computer is causing something to screw up. On my 00 sonoma I had the same issue. It wound up being that the computer was telling the injectors to dump high amounts of gas. Wound up screwing everything up, and replacing the computer. I sold the freaking thing once it ran somwhat ok. I would take it to a good local guy, and see if they can reset it.


doesnt disconnecting the batteries for 5-10 mins reset the compter?
 






[QUOTE='97 V8]when you say full hot, do you mean like into the red hot on the gauge or in the middle of the gauge hot?[/QUOTE]

No not beyond operating hot. Temp never goes places that it should not. I mean like leaving the truck run a few minute without moving. Or driving on a hot day. Cold days and lower temps clearly don't bother the thing.

Yesterday it hit 80-90 deg around here. It ran 10 min then that was IT.

Day before it was like 60-70 and everything was fine...

What ever it is that is not happy it sure seems that it is affected by temp. Hot = push :(

Best regards,
Sean
 






[QUOTE='97 V8]doesnt disconnecting the batteries for 5-10 mins reset the compter?[/QUOTE]

Yep! I did this the first time it pulled this on me. No effect, same condition after reset.

Best regards,
Sean
 






ok, this is VERY random...but i once heard of a prank where you put a ping pong ball in someone's gas tank. the ball is light enough to float, until you start the engine and it starts pulling gas through the tank. when this happens, the ball gets sucked down and blocks fuel flow. now, i know that is a big "what the fk?", but hey, you never know

other than that i dont know what to tell you; i just read the post and thats what popped in my head. good luck though
 






Ive done some searching and the Camshaft sensor went bad in a 4.0 and had the problems you said, it was replaced and all was well. I'll try to find the thread again.
 






Disconnecting will reset codes, but in my case, the computer needed more extensive work. Worth a shot as well.
 






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