rrlund
New Member
- Joined
- March 20, 2017
- Messages
- 8
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- Year, Model & Trim Level
- 2002 Explorer XLS
I just got a 2002 Explorer XLS with a 4.0. It's not a Sport Trac,but I can't find a forum on here to post on this specific model. This should be close enough. It's been sitting for about two years. It died on the road for the previous owner. He was told by somebody who was just guessing,that the timing chain broke. The same thing happened to our 2002 Sport Trac a few years ago. I told him I'd take it and put a junkyard motor in it like I did the Sport Trac. When I got it home,I put a battery in it,cranked on it and it fired and died. I stuck a screwdriver in the oil fill hole on one side and a sensor hole on the other side and everything is moving like it should.
It will fire for just about a second then die. After that,I have to wait 30-45 minutes before it will fire again. It cranks over,just won't fire. It won't even fire on starting fluid being shot straight in the intake with the air cleaner tube off. I put a new crank sensor on it today and there was no change. I have my doubts about it being the idle air control. There were no prior symptoms as far as I know. When I let it sit,then try it with the accelerator to the floor,it backfires instead of firing smooth for a second. Don't mistake what I'm saying,it doesn't run for a few seconds,pretty much literally just for about one second.
I had the coil pack here off the old engine from the Sport Trac and I put that on it. No change. I can hear the fuel pump running for two or three seconds when I turn the key on. I really have to believe its an electrical problem. Any ideas?
It will fire for just about a second then die. After that,I have to wait 30-45 minutes before it will fire again. It cranks over,just won't fire. It won't even fire on starting fluid being shot straight in the intake with the air cleaner tube off. I put a new crank sensor on it today and there was no change. I have my doubts about it being the idle air control. There were no prior symptoms as far as I know. When I let it sit,then try it with the accelerator to the floor,it backfires instead of firing smooth for a second. Don't mistake what I'm saying,it doesn't run for a few seconds,pretty much literally just for about one second.
I had the coil pack here off the old engine from the Sport Trac and I put that on it. No change. I can hear the fuel pump running for two or three seconds when I turn the key on. I really have to believe its an electrical problem. Any ideas?